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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
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 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
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package com.sun.org.apache.xerces.internal.impl.dv.xs;


import com.sun.org.apache.xerces.internal.impl.dv.XSSimpleType;
import com.sun.org.apache.xerces.internal.util.SymbolHash;

/**
 * the factory to create/return built-in schema DVs and create user-defined DVs
 *
 * @xerces.internal
 *
 * @author Neeraj Bajaj, Sun Microsystems, inc.
 * @author Sandy Gao, IBM
 *
 */
public class SchemaDVFactoryImpl extends BaseSchemaDVFactory {

    static final SymbolHash fBuiltInTypes = new SymbolHash();

    static {
        createBuiltInTypes();
    }

    // create all built-in types
    static void createBuiltInTypes() {
        createBuiltInTypes(fBuiltInTypes, XSSimpleTypeDecl.fAnySimpleType);

        // TODO: move specific 1.0 DV implementation from base
    } //createBuiltInTypes()

    /**
     * Get a built-in simple type of the given name
     * REVISIT: its still not decided within the Schema WG how to define the
     *          ur-types and if all simple types should be derived from a
     *          complex type, so as of now we ignore the fact that anySimpleType
     *          is derived from anyType, and pass 'null' as the base of
     *          anySimpleType. It needs to be changed as per the decision taken.
     *
     * @param name  the name of the datatype
     * @return      the datatype validator of the given name
     */
    public XSSimpleType getBuiltInType(String name) {
        return (XSSimpleType)fBuiltInTypes.get(name);
    }

    /**
     * get all built-in simple types, which are stored in a hashtable keyed by
     * the name
     *
     * @return      a hashtable which contains all built-in simple types
     */
    public SymbolHash getBuiltInTypes() {
        return (SymbolHash)fBuiltInTypes.makeClone();
    }

}//SchemaDVFactoryImpl