Mercurial > hg > icedtea9-forest > jdk
changeset 2885:d44696691445
6843995: RowSet 1.1 updates
Reviewed-by: darcy, valeriep
| author | lancea |
|---|---|
| date | Sat, 04 Sep 2010 13:56:27 -0400 |
| parents | 1f99ad63eb9e |
| children | c4defe31c94a |
| files | src/share/classes/com/sun/rowset/RowSetFactoryImpl.java src/share/classes/javax/sql/rowset/CachedRowSet.java src/share/classes/javax/sql/rowset/RowSetFactory.java src/share/classes/javax/sql/rowset/RowSetProvider.java src/share/classes/javax/sql/rowset/package.html src/share/classes/javax/sql/rowset/spi/SyncFactory.java src/share/classes/javax/sql/rowset/spi/SyncProvider.java |
| diffstat | 7 files changed, 777 insertions(+), 258 deletions(-) [+] |
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line diff
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/share/classes/com/sun/rowset/RowSetFactoryImpl.java Sat Sep 04 13:56:27 2010 -0400 @@ -0,0 +1,69 @@ +/* + * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. Oracle designates this + * particular file as subject to the "Classpath" exception as provided + * by Oracle in the LICENSE file that accompanied this code. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ + +package com.sun.rowset; + +import java.sql.SQLException; +import javax.sql.rowset.CachedRowSet; +import javax.sql.rowset.FilteredRowSet; +import javax.sql.rowset.JdbcRowSet; +import javax.sql.rowset.JoinRowSet; +import javax.sql.rowset.WebRowSet; +import javax.sql.rowset.RowSetFactory; + +/** + * This is the implementation specific class for the + * <code>javax.sql.rowset.spi.RowSetFactory</code>. This is the platform + * default implementation for the Java SE platform. + * + * @author Lance Andersen + * + * + * @version 1.7 + */ +public final class RowSetFactoryImpl implements RowSetFactory { + + public CachedRowSet createCachedRowSet() throws SQLException { + return new com.sun.rowset.CachedRowSetImpl(); + } + + public FilteredRowSet createFilteredRowSet() throws SQLException { + return new com.sun.rowset.FilteredRowSetImpl(); + } + + + public JdbcRowSet createJdbcRowSet() throws SQLException { + return new com.sun.rowset.JdbcRowSetImpl(); + } + + public JoinRowSet createJoinRowSet() throws SQLException { + return new com.sun.rowset.JoinRowSetImpl(); + } + + public WebRowSet createWebRowSet() throws SQLException { + return new com.sun.rowset.WebRowSetImpl(); + } + +}
--- a/src/share/classes/javax/sql/rowset/CachedRowSet.java Sat Sep 04 12:21:56 2010 -0400 +++ b/src/share/classes/javax/sql/rowset/CachedRowSet.java Sat Sep 04 13:56:27 2010 -0400 @@ -1,5 +1,5 @@ /* - * Copyright (c) 2003, 2006, Oracle and/or its affiliates. All rights reserved. + * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it @@ -644,10 +644,10 @@ * of <code>execute</code> that takes a <code>ResultSet</code> object. * * @param data the <code>ResultSet</code> object containing the data - * to be read into this <code>CachedRowSet</code> object + * to be read into this <code>CachedRowSet</code> object * @throws SQLException if a null <code>ResultSet</code> object is supplied - * or this <code>CachedRowSet</code> object cannot - * retrieve the associated <code>ResultSetMetaData</code> object + * or this <code>CachedRowSet</code> object cannot + * retrieve the associated <code>ResultSetMetaData</code> object * @see #execute * @see java.sql.ResultSet * @see java.sql.ResultSetMetaData @@ -674,10 +674,10 @@ * to commit outstanding updates, those updates are lost. * * @param conn a standard JDBC <code>Connection</code> object with valid - * properties + * properties * @throws SQLException if an invalid <code>Connection</code> object is supplied - * or an error occurs in establishing the connection to the - * data source + * or an error occurs in establishing the connection to the + * data source * @see #populate * @see java.sql.Connection */ @@ -736,8 +736,8 @@ * * @throws SQLException if the cursor is on the insert row * @throws SyncProviderException if the underlying - * synchronization provider's writer fails to write the updates - * back to the data source + * synchronization provider's writer fails to write the updates + * back to the data source * @see #acceptChanges(java.sql.Connection) * @see javax.sql.RowSetWriter * @see javax.sql.rowset.spi.SyncFactory @@ -807,8 +807,8 @@ * @param con a standard JDBC <code>Connection</code> object * @throws SQLException if the cursor is on the insert row * @throws SyncProviderException if the underlying - * synchronization provider's writer fails to write the updates - * back to the data source + * synchronization provider's writer fails to write the updates + * back to the data source * @see #acceptChanges() * @see javax.sql.RowSetWriter * @see javax.sql.rowset.spi.SyncFactory @@ -867,7 +867,7 @@ * the rowset's Java VM resources. * * @throws SQLException if an error occurs flushing the contents of this - * <code>CachedRowSet</code> object + * <code>CachedRowSet</code> object * @see javax.sql.RowSetListener#rowSetChanged * @see java.sql.ResultSet#close */ @@ -948,9 +948,9 @@ * * @param idx an <code>int</code> identifying the column to be checked for updates * @return <code>true</code> if the designated column has been visibly updated; - * <code>false</code> otherwise + * <code>false</code> otherwise * @throws SQLException if the cursor is on the insert row, before the first row, - * or after the last row + * or after the last row * @see java.sql.DatabaseMetaData#updatesAreDetected */ public boolean columnUpdated(int idx) throws SQLException; @@ -963,9 +963,9 @@ * @param columnName a <code>String</code> object giving the name of the * column to be checked for updates * @return <code>true</code> if the column has been visibly updated; - * <code>false</code> otherwise + * <code>false</code> otherwise * @throws SQLException if the cursor is on the insert row, before the first row, - * or after the last row + * or after the last row * @see java.sql.DatabaseMetaData#updatesAreDetected */ public boolean columnUpdated(String columnName) throws SQLException; @@ -1003,7 +1003,7 @@ * <P> * * @return a <code>Collection</code> object that contains the values in - * each row in this <code>CachedRowSet</code> object + * each row in this <code>CachedRowSet</code> object * @throws SQLException if an error occurs generating the collection * @see #toCollection(int) * @see #toCollection(String) @@ -1030,10 +1030,10 @@ * @param column an <code>int</code> indicating the column whose values * are to be represented in a <code>Collection</code> object * @return a <code>Collection</code> object that contains the values - * stored in the specified column of this <code>CachedRowSet</code> - * object + * stored in the specified column of this <code>CachedRowSet</code> + * object * @throws SQLException if an error occurs generating the collection or - * an invalid column id is provided + * an invalid column id is provided * @see #toCollection * @see #toCollection(String) */ @@ -1059,10 +1059,10 @@ * @param column a <code>String</code> object giving the name of the * column whose values are to be represented in a collection * @return a <code>Collection</code> object that contains the values - * stored in the specified column of this <code>CachedRowSet</code> - * object + * stored in the specified column of this <code>CachedRowSet</code> + * object * @throws SQLException if an error occurs generating the collection or - * an invalid column id is provided + * an invalid column id is provided * @see #toCollection * @see #toCollection(int) */ @@ -1100,7 +1100,7 @@ * @return the <code>SyncProvider</code> object that was set when the rowset * was instantiated, or if none was was set, the default provider * @throws SQLException if an error occurs while returning the - * <code>SyncProvider</code> object + * <code>SyncProvider</code> object * @see #setSyncProvider */ public SyncProvider getSyncProvider() throws SQLException; @@ -1127,7 +1127,7 @@ * @param provider a <code>String</code> object giving the fully qualified class * name of a <code>SyncProvider</code> implementation * @throws SQLException if an error occurs while attempting to reset the - * <code>SyncProvider</code> implementation + * <code>SyncProvider</code> implementation * @see #getSyncProvider */ public void setSyncProvider(String provider) throws SQLException; @@ -1152,9 +1152,9 @@ * object to the rowset. * * @param md a <code>RowSetMetaData</code> object containing - * metadata about the columns in this <code>CachedRowSet</code> object + * metadata about the columns in this <code>CachedRowSet</code> object * @throws SQLException if invalid metadata is supplied to the - * rowset + * rowset */ public void setMetaData(RowSetMetaData md) throws SQLException; @@ -1183,7 +1183,7 @@ * @return a <code>ResultSet</code> object that contains the original value for * this <code>CachedRowSet</code> object * @throws SQLException if an error occurs producing the - * <code>ResultSet</code> object + * <code>ResultSet</code> object */ public ResultSet getOriginal() throws SQLException; @@ -1217,7 +1217,7 @@ * A call to <code>setOriginalRow</code> is irreversible. * * @throws SQLException if there is no current row or an error is - * encountered resetting the contents of the original row + * encountered resetting the contents of the original row * @see #getOriginalRow */ public void setOriginalRow() throws SQLException; @@ -1326,7 +1326,7 @@ * as this <code>CachedRowSet</code> object and that has a cursor over * the same data * @throws SQLException if an error occurs or cloning is not - * supported in the underlying platform + * supported in the underlying platform * @see javax.sql.RowSetEvent * @see javax.sql.RowSetListener */ @@ -1344,10 +1344,10 @@ * established must be maintained. * * @return a new <code>RowSet</code> object that is a deep copy - * of this <code>CachedRowSet</code> object and is - * completely independent of this <code>CachedRowSet</code> object + * of this <code>CachedRowSet</code> object and is + * completely independent of this <code>CachedRowSet</code> object * @throws SQLException if an error occurs in generating the copy of - * the of this <code>CachedRowSet</code> object + * the of this <code>CachedRowSet</code> object * @see #createShared * @see #createCopySchema * @see #createCopyNoConstraints @@ -1396,10 +1396,10 @@ * in the copy. * * @return a new <code>CachedRowSet</code> object that is a deep copy - * of this <code>CachedRowSet</code> object and is - * completely independent of this <code>CachedRowSet</code> object + * of this <code>CachedRowSet</code> object and is + * completely independent of this <code>CachedRowSet</code> object * @throws SQLException if an error occurs in generating the copy of - * the of this <code>CachedRowSet</code> object + * the of this <code>CachedRowSet</code> object * @see #createCopy * @see #createShared * @see #createCopySchema @@ -1445,7 +1445,7 @@ * @return <code>true</code> if deleted rows are visible; * <code>false</code> otherwise * @throws SQLException if a rowset implementation is unable to - * to determine whether rows marked for deletion are visible + * to determine whether rows marked for deletion are visible * @see #setShowDeleted */ public boolean getShowDeleted() throws SQLException; @@ -1467,7 +1467,7 @@ * @param b <code>true</code> if deleted rows should be shown; * <code>false</code> otherwise * @exception SQLException if a rowset implementation is unable to - * to reset whether deleted rows should be visible + * to reset whether deleted rows should be visible * @see #getShowDeleted */ public void setShowDeleted(boolean b) throws SQLException; @@ -1523,9 +1523,12 @@ * set to false, the changes will <b>not</b> be committed until one of the * <code>CachedRowSet</code> interface transaction methods is called. * + * @deprecated Because this field is final (it is part of an interface), + * its value cannot be changed. * @see #commit * @see #rollback */ + @Deprecated public static final boolean COMMIT_ON_ACCEPT_CHANGES = true; /** @@ -1562,10 +1565,10 @@ * @param startRow the position in the <code>ResultSet</code> from where to start * populating the records in this <code>CachedRowSet</code> * @param rs the <code>ResultSet</code> object containing the data - * to be read into this <code>CachedRowSet</code> object + * to be read into this <code>CachedRowSet</code> object * @throws SQLException if a null <code>ResultSet</code> object is supplied - * or this <code>CachedRowSet</code> object cannot - * retrieve the associated <code>ResultSetMetaData</code> object + * or this <code>CachedRowSet</code> object cannot + * retrieve the associated <code>ResultSetMetaData</code> object * @see #execute * @see #populate(ResultSet) * @see java.sql.ResultSet @@ -1620,3 +1623,4 @@ public boolean previousPage() throws SQLException; } +
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/share/classes/javax/sql/rowset/RowSetFactory.java Sat Sep 04 13:56:27 2010 -0400 @@ -0,0 +1,99 @@ +/* + * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. Oracle designates this + * particular file as subject to the "Classpath" exception as provided + * by Oracle in the LICENSE file that accompanied this code. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ + +package javax.sql.rowset; + +import java.sql.SQLException; + +/** + * An interface that defines the implementation of a factory that is used + * to obtain different types of {@code RowSet} implementations. + * + * @author Lance Andersen + * @since 1.7 + */ +public interface RowSetFactory{ + + /** + * <p>Creates a new instance of a CachedRowSet.</p> + * + * @return A new instance of a CachedRowSet. + * + * @throws SQLException if a CachedRowSet cannot + * be created. + * + * @since 1.7 + */ + public CachedRowSet createCachedRowSet() throws SQLException; + + /** + * <p>Creates a new instance of a FilteredRowSet.</p> + * + * @return A new instance of a FilteredRowSet. + * + * @throws SQLException if a FilteredRowSet cannot + * be created. + * + * @since 1.7 + */ + public FilteredRowSet createFilteredRowSet() throws SQLException; + + /** + * <p>Creates a new instance of a JdbcRowSet.</p> + * + * @return A new instance of a JdbcRowSet. + * + * @throws SQLException if a JdbcRowSet cannot + * be created. + * + * @since 1.7 + */ + public JdbcRowSet createJdbcRowSet() throws SQLException; + + /** + * <p>Creates a new instance of a JoinRowSet.</p> + * + * @return A new instance of a JoinRowSet. + * + * @throws SQLException if a JoinRowSet cannot + * be created. + * + * @since 1.7 + */ + public JoinRowSet createJoinRowSet() throws SQLException; + + /** + * <p>Creates a new instance of a WebRowSet.</p> + * + * @return A new instance of a WebRowSet. + * + * @throws SQLException if a WebRowSet cannot + * be created. + * + * @since 1.7 + */ + public WebRowSet createWebRowSet() throws SQLException; + +} \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/share/classes/javax/sql/rowset/RowSetProvider.java Sat Sep 04 13:56:27 2010 -0400 @@ -0,0 +1,305 @@ +/* + * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. Oracle designates this + * particular file as subject to the "Classpath" exception as provided + * by Oracle in the LICENSE file that accompanied this code. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ + +package javax.sql.rowset; + +import java.security.AccessController; +import java.security.PrivilegedAction; +import java.sql.SQLException; +import java.util.ServiceLoader; +import javax.sql.rowset.RowSetFactory; + +/** + * A factory API that enables applications to obtain a + * {@code RowSetFactory} implementation that can be used to create different + * types of {@code RowSet} implementations. + * <p> + * Example: + * </p> + * <pre> + * RowSetFactory aFactory = RowSetProvider.newFactory(); + * CachedRowSet crs = aFactory.createCachedRowSet(); + * ... + * RowSetFactory rsf = RowSetProvider.newFactory("com.sun.rowset.RowSetFactoryImpl", null); + * WebRowSet wrs = rsf.createWebRowSet(); + * </pre> + *<p> + * Tracing of this class may be enabled by setting the System property + * {@code javax.sql.rowset.RowSetFactory.debug} to any value but {@code false}. + * </p> + * + * @author Lance Andersen + * @since 1.7 + */ +public class RowSetProvider { + + private static final String ROWSET_DEBUG_PROPERTY = "javax.sql.rowset.RowSetProvider.debug"; + private static final String ROWSET_FACTORY_IMPL = "com.sun.rowset.RowSetFactoryImpl"; + private static final String ROWSET_FACTORY_NAME = "javax.sql.rowset.RowSetFactory"; + /** + * Internal debug flag. + */ + private static boolean debug = true; + + + static { + // Check to see if the debug property is set + String val = getSystemProperty(ROWSET_DEBUG_PROPERTY); + // Allow simply setting the prop to turn on debug + debug = val != null && !"false".equals(val); + } + + + protected RowSetProvider () { + } + + /** + * <p>Creates a new instance of a <code>RowSetFactory</code> + * implementation. This method uses the following + * look up order to determine + * the <code>RowSetFactory</code> implementation class to load:</p> + * <ul> + * <li> + * The System property {@code javax.sql.rowset.RowsetFactory}. For example: + * <ul> + * <li> + * -Djavax.sql.rowset.RowsetFactory=com.sun.rowset.RowSetFactoryImpl + * </li> + * </ul> + * <li> + * The ServiceLocator API. The ServiceLocator API will look + * for a classname in the file + * {@code META-INF/services/javax.sql.rowset.RowSetFactory} + * in jars available to the runtime. For example, to have the the RowSetFactory + * implementation {@code com.sun.rowset.RowSetFactoryImpl } loaded, the + * entry in {@code META-INF/services/javax.sql.rowset.RowSetFactory} would be: + * <ul> + * <li> + * {@code com.sun.rowset.RowSetFactoryImpl } + * </li> + * </ul> + * </li> + * <li> + * Platform default <code>RowSetFactory</code> instance. + * </li> + * </ul> + * + * <p>Once an application has obtained a reference to a {@code RowSetFactory}, + * it can use the factory to obtain RowSet instances.</p> + * + * @return New instance of a <code>RowSetFactory</code> + * + * @throws SQLException if the default factory class cannot be loaded, + * instantiated. The cause will be set to actual Exception + * + * @see ServiceLoader + * @since 1.7 + */ + public static RowSetFactory newFactory() + throws SQLException { + // Use the system property first + RowSetFactory factory = null; + String factoryClassName = null; + try { + trace("Checking for Rowset System Property..."); + factoryClassName = getSystemProperty(ROWSET_FACTORY_NAME); + if (factoryClassName != null) { + trace("Found system property, value=" + factoryClassName); + factory = (RowSetFactory) getFactoryClass(factoryClassName, null, true).newInstance(); + } + } catch (ClassNotFoundException e) { + throw new SQLException( + "RowSetFactory: " + factoryClassName + " not found", e); + } catch (Exception e) { + throw new SQLException( + "RowSetFactory: " + factoryClassName + " could not be instantiated: " + e, + e); + } + + // Check to see if we found the RowSetFactory via a System property + if (factory == null) { + // If the RowSetFactory is not found via a System Property, now + // look it up via the ServiceLoader API and if not found, use the + // Java SE default. + factory = loadViaServiceLoader(); + factory = + factory == null ? newFactory(ROWSET_FACTORY_IMPL, null) : factory; + } + return (factory); + } + + /** + * <p>Creates a new instance of a <code>RowSetFactory</code> from the + * specified factory class name. + * This function is useful when there are multiple providers in the classpath. + * It gives more control to the application as it can specify which provider + * should be loaded.</p> + * + * <p>Once an application has obtained a reference to a <code>RowSetFactory</code> + * it can use the factory to obtain RowSet instances.</p> + * + * @param factoryClassName fully qualified factory class name that + * provides an implementation of <code>javax.sql.rowset.RowSetFactory</code>. + * + * @param cl <code>ClassLoader</code> used to load the factory + * class. If <code>null</code> current <code>Thread</code>'s context + * classLoader is used to load the factory class. + * + * @return New instance of a <code>RowSetFactory</code> + * + * @throws SQLException if <code>factoryClassName</code> is + * <code>null</code>, or the factory class cannot be loaded, instantiated. + * + * @see #newFactory() + * + * @since 1.7 + */ + public static RowSetFactory newFactory(String factoryClassName, ClassLoader cl) + throws SQLException { + + trace("***In newInstance()"); + try { + Class providerClass = getFactoryClass(factoryClassName, cl, false); + RowSetFactory instance = (RowSetFactory) providerClass.newInstance(); + if (debug) { + trace("Created new instance of " + providerClass + + " using ClassLoader: " + cl); + } + return instance; + } catch (ClassNotFoundException x) { + throw new SQLException( + "Provider " + factoryClassName + " not found", x); + } catch (Exception x) { + throw new SQLException( + "Provider " + factoryClassName + " could not be instantiated: " + x, + x); + } + } + + /* + * Returns the class loader to be used. + * @return The ClassLoader to use. + * + */ + static private ClassLoader getContextClassLoader() throws SecurityException { + return (ClassLoader) AccessController.doPrivileged(new PrivilegedAction() { + + public Object run() { + ClassLoader cl = null; + + cl = Thread.currentThread().getContextClassLoader(); + + if (cl == null) { + cl = ClassLoader.getSystemClassLoader(); + } + + return cl; + } + }); + } + + /** + * Attempt to load a class using the class loader supplied. If that fails + * and fall back is enabled, the current (i.e. bootstrap) class loader is + * tried. + * + * If the class loader supplied is <code>null</code>, first try using the + * context class loader followed by the current class loader. + * @return The class which was loaded + */ + static private Class getFactoryClass(String factoryClassName, ClassLoader cl, + boolean doFallback) throws ClassNotFoundException { + try { + if (cl == null) { + cl = getContextClassLoader(); + if (cl == null) { + throw new ClassNotFoundException(); + } else { + return cl.loadClass(factoryClassName); + } + } else { + return cl.loadClass(factoryClassName); + } + } catch (ClassNotFoundException e) { + if (doFallback) { + // Use current class loader + return Class.forName(factoryClassName, true, RowSetFactory.class.getClassLoader()); + } else { + throw e; + } + } + } + + /** + * Use the ServiceLoader mechanism to load the default RowSetFactory + * @return default RowSetFactory Implementation + */ + static private RowSetFactory loadViaServiceLoader() { + RowSetFactory theFactory = null; + trace("***in loadViaServiceLoader()"); + for (RowSetFactory factory : ServiceLoader.load(javax.sql.rowset.RowSetFactory.class)) { + trace(" Loading done by the java.util.ServiceLoader :" + factory.getClass().getName()); + theFactory = factory; + break; + } + return theFactory; + + } + + /** + * Returns the requested System Property. If a {@code SecurityException} + * occurs, just return NULL + * @param propName - System property to retreive + * @return The System property value or NULL if the property does not exist + * or a {@code SecurityException} occurs. + */ + static private String getSystemProperty(final String propName) { + String property = null; + try { + property = (String) AccessController.doPrivileged(new PrivilegedAction() { + + public Object run() { + return System.getProperty(propName); + } + }); + } catch (SecurityException se) { + if (debug) { + se.printStackTrace(); + } + } + return property; + } + + /** + * Debug routine which will output tracing if the System Property + * -Djavax.sql.rowset.RowSetFactory.debug is set + * @param msg - The debug message to display + */ + private static void trace(String msg) { + if (debug) { + System.err.println("###RowSets: " + msg); + } + } +}
--- a/src/share/classes/javax/sql/rowset/package.html Sat Sep 04 12:21:56 2010 -0400 +++ b/src/share/classes/javax/sql/rowset/package.html Sat Sep 04 13:56:27 2010 -0400 @@ -5,7 +5,7 @@ <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <!-- -Copyright (c) 2003, 2006, Oracle and/or its affiliates. All rights reserved. +Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. This code is free software; you can redistribute it and/or modify it @@ -78,7 +78,7 @@ data structure as defined in the JDBC 3.0 specification. <p> <li><a href="CachedRowSet.html"> -<b><code>CachedRowSet</code><sup><font size=-2>TM></font></sup</b></a> +<b><code>CachedRowSet</code>™</b></a> - A <tt>CachedRowSet</tt> object is a JavaBeans<sup><font size=-2>TM</font></sup> component that is scrollable, updatable, serializable, and generally disconnected from the source of its data. A <tt>CachedRowSet</tt> object @@ -148,7 +148,12 @@ on <a href="spi/SyncProvider.html"><code>SyncProvider</code></a> implementations. <p> <ul> -<li><b>3.1 Role of the <code>BaseRowSet</code> Class</b> +<li><b>3.1 Constructor</b> +<p> + All <code>RowSet</code> implementations <strong>must</strong> provide a +no-argument constructor. +</li> +<li><b>3.2 Role of the <code>BaseRowSet</code> Class</b> <p> A compliant JDBC <code>RowSet</code> implementation <b>must</b> implement one or more standard interfaces specified in this package and and <b>may</b> extend the @@ -215,7 +220,7 @@ </table> </blockquote> <p> -<li><b>3.2 Connected RowSet Requirements</b> +<li><b>3.3 Connected RowSet Requirements</b> <p> The <code>JdbcRowSet</code> describes a <code>RowSet</code> object that <b>must</b> always be connected to the originating data source. Implementations of the <code>JdbcRowSet</code> @@ -229,7 +234,7 @@ <p> <li> -<b>3.3 Disconnected RowSet Requirements</b> +<b>3.4 Disconnected RowSet Requirements</b> <p> A disconnected <code>RowSet</code> object, such as a <code>CachedRowSet</code> object, <b>should</b> delegate @@ -244,7 +249,7 @@ therefore ensure that no extraneous references remain on the <code>Connection</code> object. <p> -<li><b>3.4 Role of RowSetMetaDataImpl</b> +<li><b>3.5 Role of RowSetMetaDataImpl</b> <p> The <code>RowsetMetaDataImpl</code> class is a utility class that provides an implementation of the <a href="../RowSetMetaData.html">RowSetMetaData</a> interface, supplying standard setter @@ -252,7 +257,7 @@ <code>RowSet</code> objects. All implementations are free to use this standard implementation but are not required to do so. <p> -<li><b>3.5 RowSetWarning Class</b> +<li><b>3.6 RowSetWarning Class</b> <p> The <code>RowSetWarning</code> class provides warnings that can be set on <code>RowSet</code> implementations. @@ -270,7 +275,7 @@ <P> -<li><b>3.6 The Joinable Interface</b> +<li><b>3.7 The Joinable Interface</b> <P> The <code>Joinable</code> interface provides both connected and disconnected <code>RowSet</code> objects with the capability to be added to a @@ -278,7 +283,14 @@ A <code>RowSet</code> object that has implemented the <code>Joinable</code> interface can set a match column, retrieve a match column, or unset a match column. A <code>JoinRowSet</code> object can then use the <code>RowSet</code> object's -match column as a basis for adding the <code>RowSet</code> object. +match column as a basis for adding the <code>RowSet</code> object. +</li> + +<li><b>3.8 The RowSetFactory Interface</b> + <p> + A <code>RowSetFactory</code> implementation <strong>must</strong> + be provided. +</li> </ul> <h3><a name="relspec">4.0 Related Specifications</a></h3>
--- a/src/share/classes/javax/sql/rowset/spi/SyncFactory.java Sat Sep 04 12:21:56 2010 -0400 +++ b/src/share/classes/javax/sql/rowset/spi/SyncFactory.java Sat Sep 04 13:56:27 2010 -0400 @@ -1,5 +1,5 @@ /* - * Copyright (c) 2003, 2006, Oracle and/or its affiliates. All rights reserved. + * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it @@ -25,13 +25,6 @@ package javax.sql.rowset.spi; -import java.util.Map; -import java.util.Hashtable; -import java.util.Enumeration; -import java.util.Vector; -import java.util.Properties; -import java.util.Collection; -import java.util.StringTokenizer; import java.util.logging.*; import java.util.*; @@ -216,68 +209,64 @@ * Having a private constructor guarantees that no more than * one <code>SyncProvider</code> object can exist at a time. */ - private SyncFactory() {}; + private SyncFactory() { + } /** * The standard property-id for a synchronization provider implementation * name. */ - public static String ROWSET_SYNC_PROVIDER = - "rowset.provider.classname"; - + public static final String ROWSET_SYNC_PROVIDER = + "rowset.provider.classname"; /** * The standard property-id for a synchronization provider implementation * vendor name. */ - public static String ROWSET_SYNC_VENDOR = - "rowset.provider.vendor"; - + public static final String ROWSET_SYNC_VENDOR = + "rowset.provider.vendor"; /** * The standard property-id for a synchronization provider implementation * version tag. */ - public static String ROWSET_SYNC_PROVIDER_VERSION = - "rowset.provider.version"; - + public static final String ROWSET_SYNC_PROVIDER_VERSION = + "rowset.provider.version"; /** * The standard resource file name. */ private static String ROWSET_PROPERTIES = "rowset.properties"; - /** * The RI Optimistic Provider. */ private static String default_provider = - "com.sun.rowset.providers.RIOptimisticProvider"; - + "com.sun.rowset.providers.RIOptimisticProvider"; + /** + * Permission required to invoke setJNDIContext and setLogger + */ + private static final SQLPermission SET_SYNCFACTORY_PERMISSION = + new SQLPermission("setSyncFactory"); /** * The initial JNDI context where <code>SyncProvider</code> implementations can * be stored and from which they can be invoked. */ private static Context ic; - /** * The <code>Logger</code> object to be used by the <code>SyncFactory</code>. */ private static Logger rsLogger; - /** * */ private static Level rsLevel; - /** * The registry of available <code>SyncProvider</code> implementations. * See section 2.0 of the class comment for <code>SyncFactory</code> for an * explanation of how a provider can be added to this registry. */ private static Hashtable implementations; - /** * Internal sync object used to maintain the SPI as a singleton */ private static Object logSync = new Object(); - /** * Internal PrintWriter field for logging facility */ @@ -311,7 +300,7 @@ * @see #setJNDIContext */ public static synchronized void registerProvider(String providerID) - throws SyncFactoryException { + throws SyncFactoryException { ProviderImpl impl = new ProviderImpl(); impl.setClassname(providerID); @@ -325,29 +314,29 @@ * * @return the <code>SyncFactory</code> instance */ - public static SyncFactory getSyncFactory(){ + public static SyncFactory getSyncFactory() { - // This method uses the Singleton Design Pattern - // with Double-Checked Locking Pattern for - // 1. Creating single instance of the SyncFactory - // 2. Make the class thread safe, so that at one time - // only one thread enters the synchronized block - // to instantiate. + // This method uses the Singleton Design Pattern + // with Double-Checked Locking Pattern for + // 1. Creating single instance of the SyncFactory + // 2. Make the class thread safe, so that at one time + // only one thread enters the synchronized block + // to instantiate. - // if syncFactory object is already there - // don't go into synchronized block and return - // that object. - // else go into synchronized block + // if syncFactory object is already there + // don't go into synchronized block and return + // that object. + // else go into synchronized block - if(syncFactory == null){ - synchronized(SyncFactory.class) { - if(syncFactory == null){ + if (syncFactory == null) { + synchronized (SyncFactory.class) { + if (syncFactory == null) { syncFactory = new SyncFactory(); } //end if - } //end synchronized block - } //end if - return syncFactory; - } + } //end synchronized block + } //end if + return syncFactory; + } /** * Removes the designated currently registered synchronization provider from the @@ -358,13 +347,12 @@ * unregister a SyncProvider implementation that was not registered. */ public static synchronized void unregisterProvider(String providerID) - throws SyncFactoryException { + throws SyncFactoryException { initMapIfNecessary(); if (implementations.containsKey(providerID)) { implementations.remove(providerID); } } - private static String colon = ":"; private static String strFileSep = "/"; @@ -395,7 +383,7 @@ * Dependent on application */ String strRowsetProperties = System.getProperty("rowset.properties"); - if ( strRowsetProperties != null) { + if (strRowsetProperties != null) { // Load user's implementation of SyncProvider // here. -Drowset.properties=/abc/def/pqr.txt ROWSET_PROPERTIES = strRowsetProperties; @@ -407,8 +395,8 @@ * Always available */ ROWSET_PROPERTIES = "javax" + strFileSep + "sql" + - strFileSep + "rowset" + strFileSep + - "rowset.properties"; + strFileSep + "rowset" + strFileSep + + "rowset.properties"; // properties.load( // ClassLoader.getSystemResourceAsStream(ROWSET_PROPERTIES)); @@ -417,7 +405,7 @@ properties.load(cl.getResourceAsStream(ROWSET_PROPERTIES)); parseProperties(properties); - // removed else, has properties should sum together + // removed else, has properties should sum together } catch (FileNotFoundException e) { throw new SyncFactoryException("Cannot locate properties file: " + e); @@ -447,18 +435,15 @@ } } } - /** * The internal boolean switch that indicates whether a JNDI * context has been established or not. */ private static boolean jndiCtxEstablished = false; - /** * The internal debug switch. */ private static boolean debug = false; - /** * Internal registry count for the number of providers contained in the * registry. @@ -475,9 +460,9 @@ String key = null; String[] propertyNames = null; - for (Enumeration e = p.propertyNames(); e.hasMoreElements() ;) { + for (Enumeration e = p.propertyNames(); e.hasMoreElements();) { - String str = (String)e.nextElement(); + String str = (String) e.nextElement(); int w = str.length(); @@ -491,7 +476,7 @@ propertyNames = getPropertyNames(false); } else { // property index has been set. - propertyNames = getPropertyNames(true, str.substring(w-1)); + propertyNames = getPropertyNames(true, str.substring(w - 1)); } key = p.getProperty(propertyNames[0]); @@ -515,17 +500,17 @@ * overloaded property names that contain indexes. */ private static String[] getPropertyNames(boolean append, - String propertyIndex) { + String propertyIndex) { String dot = "."; String[] propertyNames = - new String[] {SyncFactory.ROWSET_SYNC_PROVIDER, - SyncFactory.ROWSET_SYNC_VENDOR, - SyncFactory.ROWSET_SYNC_PROVIDER_VERSION}; + new String[]{SyncFactory.ROWSET_SYNC_PROVIDER, + SyncFactory.ROWSET_SYNC_VENDOR, + SyncFactory.ROWSET_SYNC_PROVIDER_VERSION}; if (append) { for (int i = 0; i < propertyNames.length; i++) { propertyNames[i] = propertyNames[i] + - dot + - propertyIndex; + dot + + propertyIndex; } return propertyNames; } else { @@ -549,15 +534,21 @@ * * @param providerID the unique identifier of the provider * @return a <code>SyncProvider</code> implementation - * @throws SyncFactoryException If the SyncProvider cannot be found or + * @throws SyncFactoryException If the SyncProvider cannot be found, + * the providerID is {@code null}, or * some error was encountered when trying to invoke this provider. */ public static SyncProvider getInstance(String providerID) - throws SyncFactoryException { + throws SyncFactoryException { + + if(providerID == null) { + throw new SyncFactoryException("The providerID cannot be null"); + } + initMapIfNecessary(); // populate HashTable initJNDIContext(); // check JNDI context for any additional bindings - ProviderImpl impl = (ProviderImpl)implementations.get(providerID); + ProviderImpl impl = (ProviderImpl) implementations.get(providerID); if (impl == null) { // Requested SyncProvider is unavailable. Return default provider. @@ -575,11 +566,10 @@ * this SyncFactory and try to laod the SyncProvider class from * there. **/ - c = Class.forName(providerID, true, cl); if (c != null) { - return (SyncProvider)c.newInstance(); + return (SyncProvider) c.newInstance(); } else { return new com.sun.rowset.providers.RIOptimisticProvider(); } @@ -592,6 +582,7 @@ throw new SyncFactoryException("ClassNotFoundException: " + e.getMessage()); } } + /** * Returns an Enumeration of currently registered synchronization * providers. A <code>RowSet</code> implementation may use any provider in @@ -605,7 +596,7 @@ * providers that are registered with this Factory */ public static Enumeration<SyncProvider> getRegisteredProviders() - throws SyncFactoryException { + throws SyncFactoryException { initMapIfNecessary(); // return a collection of classnames // of type SyncProvider @@ -618,10 +609,26 @@ * <code>SyncProvider</code> implementations can log their events to * this object and the application can retrieve a handle to this * object using the <code>getLogger</code> method. + * <p> + * This method checks to see that there is an {@code SQLPermission} + * object which grants the permission {@code setSyncFactory} + * before allowing the method to succeed. If a + * {@code SecurityManager} exists and its + * {@code checkPermission} method denies calling {@code setLogger}, + * this method throws a + * {@code java.lang.SecurityException}. * * @param logger A Logger object instance + * @throws java.lang.SecurityException if a security manager exists and its + * {@code checkPermission} method denies calling {@code setLogger} + * @see SecurityManager#checkPermission */ public static void setLogger(Logger logger) { + + SecurityManager sec = System.getSecurityManager(); + if (sec != null) { + sec.checkPermission(SET_SYNCFACTORY_PERMISSION); + } rsLogger = logger; } @@ -631,14 +638,28 @@ * <code>SyncProvider</code> implementations can log their events * to this object and the application can retrieve a handle to this * object using the <code>getLogger</code> method. + * <p> + * This method checks to see that there is an {@code SQLPermission} + * object which grants the permission {@code setSyncFactory} + * before allowing the method to succeed. If a + * {@code SecurityManager} exists and its + * {@code checkPermission} method denies calling {@code setLogger}, + * this method throws a + * {@code java.lang.SecurityException}. * * @param logger a Logger object instance * @param level a Level object instance indicating the degree of logging * required + * @throws java.lang.SecurityException if a security manager exists and its + * {@code checkPermission} method denies calling {@code setLogger} + * @see SecurityManager#checkPermission */ public static void setLogger(Logger logger, Level level) { // singleton - + SecurityManager sec = System.getSecurityManager(); + if (sec != null) { + sec.checkPermission(SET_SYNCFACTORY_PERMISSION); + } rsLogger = logger; rsLogger.setLevel(level); } @@ -651,27 +672,42 @@ */ public static Logger getLogger() throws SyncFactoryException { // only one logger per session - if(rsLogger == null){ - throw new SyncFactoryException("(SyncFactory) : No logger has been set"); + if (rsLogger == null) { + throw new SyncFactoryException("(SyncFactory) : No logger has been set"); } return rsLogger; } - /** - * Sets the initial JNDI context from which SyncProvider implementations - * can be retrieved from a JNDI namespace - * - * @param ctx a valid JNDI context - * @throws SyncFactoryException if the supplied JNDI context is null - */ + /** + * Sets the initial JNDI context from which SyncProvider implementations + * can be retrieved from a JNDI namespace + * <p> + * This method checks to see that there is an {@code SQLPermission} + * object which grants the permission {@code setSyncFactory} + * before allowing the method to succeed. If a + * {@code SecurityManager} exists and its + * {@code checkPermission} method denies calling {@code setJNDIContext}, + * this method throws a + * {@code java.lang.SecurityException}. + * + * @param ctx a valid JNDI context + * @throws SyncFactoryException if the supplied JNDI context is null + * @throws java.lang.SecurityException if a security manager exists and its + * {@code checkPermission} method denies calling {@code setJNDIContext} + * @see SecurityManager#checkPermission + */ public static void setJNDIContext(javax.naming.Context ctx) - throws SyncFactoryException { + throws SyncFactoryException { + SecurityManager sec = System.getSecurityManager(); + if (sec != null) { + sec.checkPermission(SET_SYNCFACTORY_PERMISSION); + } if (ctx == null) { throw new SyncFactoryException("Invalid JNDI context supplied"); } ic = ctx; jndiCtxEstablished = true; - } + } /** * Controls JNDI context intialization. @@ -689,7 +725,7 @@ throw new SyncFactoryException("SPI: NamingException: " + e.getExplanation()); } catch (Exception e) { e.printStackTrace(); - throw new SyncFactoryException("SPI: Exception: " + e.getMessage()); + throw new SyncFactoryException("SPI: Exception: " + e.getMessage()); } } } @@ -720,7 +756,7 @@ * bindings have been enumerated. */ private static void enumerateBindings(NamingEnumeration bindings, - Properties properties) throws NamingException { + Properties properties) throws NamingException { boolean syncProviderObj = false; // move to parameters ? @@ -729,21 +765,21 @@ Object elementObj = null; String element = null; while (bindings.hasMore()) { - bd = (Binding)bindings.next(); + bd = (Binding) bindings.next(); element = bd.getName(); elementObj = bd.getObject(); if (!(ic.lookup(element) instanceof Context)) { - // skip directories/sub-contexts - if (ic.lookup(element) instanceof SyncProvider) { + // skip directories/sub-contexts + if (ic.lookup(element) instanceof SyncProvider) { syncProviderObj = true; - } + } } if (syncProviderObj) { - SyncProvider sync = (SyncProvider)elementObj; + SyncProvider sync = (SyncProvider) elementObj; properties.put(SyncFactory.ROWSET_SYNC_PROVIDER, - sync.getProviderID()); + sync.getProviderID()); syncProviderObj = false; // reset } @@ -756,142 +792,136 @@ } } - /** - * Internal class that defines the lazy reference construct for each registered - * SyncProvider implementation. - */ - class ProviderImpl extends SyncProvider { - private String className = null; - private String vendorName = null; - private String ver = null; - private int index; +/** + * Internal class that defines the lazy reference construct for each registered + * SyncProvider implementation. + */ +class ProviderImpl extends SyncProvider { + + private String className = null; + private String vendorName = null; + private String ver = null; + private int index; - public void setClassname(String classname) { - className = classname; - } - - public String getClassname() { - return className; - } + public void setClassname(String classname) { + className = classname; + } - public void setVendor(String vendor) { - vendorName = vendor; - } + public String getClassname() { + return className; + } - public String getVendor() { - return vendorName; - } + public void setVendor(String vendor) { + vendorName = vendor; + } - public void setVersion(String providerVer) { - ver = providerVer; - } + public String getVendor() { + return vendorName; + } - public String getVersion() { - return ver; - } + public void setVersion(String providerVer) { + ver = providerVer; + } - public void setIndex(int i) { - index = i; - } + public String getVersion() { + return ver; + } - public int getIndex() { - return index; - } + public void setIndex(int i) { + index = i; + } - public int getDataSourceLock() throws SyncProviderException { + public int getIndex() { + return index; + } - int dsLock = 0; - try - { - dsLock = SyncFactory.getInstance(className).getDataSourceLock(); - } catch(SyncFactoryException sfEx) { + public int getDataSourceLock() throws SyncProviderException { - throw new SyncProviderException(sfEx.getMessage()); - } + int dsLock = 0; + try { + dsLock = SyncFactory.getInstance(className).getDataSourceLock(); + } catch (SyncFactoryException sfEx) { - return dsLock; + throw new SyncProviderException(sfEx.getMessage()); } - public int getProviderGrade() { + return dsLock; + } - int grade = 0; + public int getProviderGrade() { - try - { - grade = SyncFactory.getInstance(className).getProviderGrade(); - } catch(SyncFactoryException sfEx) { - // - } + int grade = 0; - return grade; - } - - public String getProviderID() { - return className; + try { + grade = SyncFactory.getInstance(className).getProviderGrade(); + } catch (SyncFactoryException sfEx) { + // } - /* - public javax.sql.RowSetInternal getRowSetInternal() { - try - { - return SyncFactory.getInstance(className).getRowSetInternal(); - } catch(SyncFactoryException sfEx) { - // - } - } - */ + return grade; + } + + public String getProviderID() { + return className; + } - public javax.sql.RowSetReader getRowSetReader() { - - RowSetReader rsReader = null;; + /* + public javax.sql.RowSetInternal getRowSetInternal() { + try + { + return SyncFactory.getInstance(className).getRowSetInternal(); + } catch(SyncFactoryException sfEx) { + // + } + } + */ + public javax.sql.RowSetReader getRowSetReader() { - try - { - rsReader = SyncFactory.getInstance(className).getRowSetReader(); - } catch(SyncFactoryException sfEx) { - // - } + RowSetReader rsReader = null; - return rsReader; - + try { + rsReader = SyncFactory.getInstance(className).getRowSetReader(); + } catch (SyncFactoryException sfEx) { + // } - public javax.sql.RowSetWriter getRowSetWriter() { + return rsReader; + + } + + public javax.sql.RowSetWriter getRowSetWriter() { RowSetWriter rsWriter = null; - try - { - rsWriter = SyncFactory.getInstance(className).getRowSetWriter(); - } catch(SyncFactoryException sfEx) { - // - } - - return rsWriter; - } - public void setDataSourceLock(int param) - throws SyncProviderException { - - try - { - SyncFactory.getInstance(className).setDataSourceLock(param); - } catch(SyncFactoryException sfEx) { - - throw new SyncProviderException(sfEx.getMessage()); - } + try { + rsWriter = SyncFactory.getInstance(className).getRowSetWriter(); + } catch (SyncFactoryException sfEx) { + // } - public int supportsUpdatableView() { + return rsWriter; + } + + public void setDataSourceLock(int param) + throws SyncProviderException { + + try { + SyncFactory.getInstance(className).setDataSourceLock(param); + } catch (SyncFactoryException sfEx) { + + throw new SyncProviderException(sfEx.getMessage()); + } + } + + public int supportsUpdatableView() { int view = 0; - try - { - view = SyncFactory.getInstance(className).supportsUpdatableView(); - } catch(SyncFactoryException sfEx) { - // - } + try { + view = SyncFactory.getInstance(className).supportsUpdatableView(); + } catch (SyncFactoryException sfEx) { + // + } - return view; - } - + return view; } +}
--- a/src/share/classes/javax/sql/rowset/spi/SyncProvider.java Sat Sep 04 12:21:56 2010 -0400 +++ b/src/share/classes/javax/sql/rowset/spi/SyncProvider.java Sat Sep 04 13:56:27 2010 -0400 @@ -1,5 +1,5 @@ /* - * Copyright (c) 2003, 2004, Oracle and/or its affiliates. All rights reserved. + * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it @@ -344,7 +344,7 @@ * source without checking the validity of any data. * */ - public static int GRADE_NONE = 1; + public static final int GRADE_NONE = 1; /** * Indicates a low level optimistic synchronization grade with @@ -354,7 +354,7 @@ * returning this grade will check only rows that have changed. * */ - public static int GRADE_CHECK_MODIFIED_AT_COMMIT = 2; + public static final int GRADE_CHECK_MODIFIED_AT_COMMIT = 2; /** * Indicates a high level optimistic synchronization grade with @@ -364,7 +364,7 @@ * returning this grade will check all rows, including rows that have not * changed. */ - public static int GRADE_CHECK_ALL_AT_COMMIT = 3; + public static final int GRADE_CHECK_ALL_AT_COMMIT = 3; /** * Indicates a pessimistic synchronization grade with @@ -374,7 +374,7 @@ * implementation returning this grade will lock the row in the originating * data source. */ - public static int GRADE_LOCK_WHEN_MODIFIED = 4; + public static final int GRADE_LOCK_WHEN_MODIFIED = 4; /** * Indicates the most pessimistic synchronization grade with @@ -384,47 +384,47 @@ * table affected by the original statement used to populate a * <code>RowSet</code> object. */ - public static int GRADE_LOCK_WHEN_LOADED = 5; + public static final int GRADE_LOCK_WHEN_LOADED = 5; /** * Indicates that no locks remain on the originating data source. This is the default * lock setting for all <code>SyncProvider</code> implementations unless * otherwise directed by a <code>RowSet</code> object. */ - public static int DATASOURCE_NO_LOCK = 1; + public static final int DATASOURCE_NO_LOCK = 1; /** * Indicates that a lock is placed on the rows that are touched by the original * SQL statement used to populate the <code>RowSet</code> object * that is using this <code>SyncProvider</code> object. */ - public static int DATASOURCE_ROW_LOCK = 2; + public static final int DATASOURCE_ROW_LOCK = 2; /** * Indicates that a lock is placed on all tables that are touched by the original * SQL statement used to populate the <code>RowSet</code> object * that is using this <code>SyncProvider</code> object. */ - public static int DATASOURCE_TABLE_LOCK = 3; + public static final int DATASOURCE_TABLE_LOCK = 3; /** * Indicates that a lock is placed on the entire data source that is the source of * data for the <code>RowSet</code> object * that is using this <code>SyncProvider</code> object. */ - public static int DATASOURCE_DB_LOCK = 4; + public static final int DATASOURCE_DB_LOCK = 4; /** * Indicates that a <code>SyncProvider</code> implementation * supports synchronization between a <code>RowSet</code> object and * the SQL <code>VIEW</code> used to populate it. */ - public static int UPDATABLE_VIEW_SYNC = 5; + public static final int UPDATABLE_VIEW_SYNC = 5; /** * Indicates that a <code>SyncProvider</code> implementation * does <B>not</B> support synchronization between a <code>RowSet</code> * object and the SQL <code>VIEW</code> used to populate it. */ - public static int NONUPDATABLE_VIEW_SYNC = 6; + public static final int NONUPDATABLE_VIEW_SYNC = 6; }