JDK14/Java14源码在线阅读

/*
 * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
 */
/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * 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
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.sun.org.apache.xerces.internal.jaxp.validation;

import com.sun.org.apache.xerces.internal.xni.grammars.Grammar;
import com.sun.org.apache.xerces.internal.xni.grammars.XMLGrammarDescription;
import com.sun.org.apache.xerces.internal.xni.grammars.XMLGrammarPool;

/**
 * <p>Implementation of Schema for W3C XML Schemas which
 * contains schema components from one target namespace.</p>
 *
 * @author Michael Glavassevich, IBM
 * @LastModified: Nov 2017
 */
final class SimpleXMLSchema extends AbstractXMLSchema implements XMLGrammarPool {

    /** Zero length grammar array. */
    private static final Grammar [] ZERO_LENGTH_GRAMMAR_ARRAY = new Grammar [0];

    private Grammar fGrammar;
    private Grammar[] fGrammars;
    private XMLGrammarDescription fGrammarDescription;

    public SimpleXMLSchema(Grammar grammar) {
        fGrammar = grammar;
        fGrammars = new Grammar[] {grammar};
        fGrammarDescription = grammar.getGrammarDescription();
    }

    /*
     * XMLGrammarPool methods
     */

    public Grammar[] retrieveInitialGrammarSet(String grammarType) {
        return XMLGrammarDescription.XML_SCHEMA.equals(grammarType) ?
                fGrammars.clone() : ZERO_LENGTH_GRAMMAR_ARRAY;
    }

    public void cacheGrammars(String grammarType, Grammar[] grammars) {}

    public Grammar retrieveGrammar(XMLGrammarDescription desc) {
        return fGrammarDescription.equals(desc) ? fGrammar : null;
    }

    public void lockPool() {}


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