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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
 *
 * @version $Id: SchemaDVFactoryImpl.java,v 1.7 2010-11-01 04:39:47 joehw Exp $
 */
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