1 /*
2 * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
3 * @LastModified: Nov 2017
4 */
5 /*
6 * Licensed to the Apache Software Foundation (ASF) under one or more
7 * contributor license agreements. See the NOTICE file distributed with
8 * this work for additional information regarding copyright ownership.
9 * The ASF licenses this file to You under the Apache License, Version 2.0
10 * (the "License"); you may not use this file except in compliance with
11 * the License. You may obtain a copy of the License at
12 *
13 * http://www.apache.org/licenses/LICENSE-2.0
14 *
15 * Unless required by applicable law or agreed to in writing, software
16 * distributed under the License is distributed on an "AS IS" BASIS,
17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18 * See the License for the specific language governing permissions and
19 * limitations under the License.
20 */
21
22 package com.sun.org.apache.xerces.internal.jaxp.validation;
23
24 import java.lang.ref.Reference;
25 import java.lang.ref.ReferenceQueue;
26 import java.lang.ref.SoftReference;
27
28 import com.sun.org.apache.xerces.internal.xni.grammars.Grammar;
29 import com.sun.org.apache.xerces.internal.xni.grammars.XMLGrammarDescription;
30 import com.sun.org.apache.xerces.internal.xni.grammars.XMLSchemaDescription;
31 import com.sun.org.apache.xerces.internal.xni.grammars.XMLGrammarPool;
32
33 /**
34 * <p>This grammar pool is a memory sensitive cache. The grammars
35 * stored in the pool are softly reachable and may be cleared by
36 * the garbage collector in response to memory demand. Equality
37 * of <code>XMLSchemaDescription</code>s is determined using both
38 * the target namespace for the schema and schema location.</p>
39 *
40 * @author Michael Glavassevich, IBM
41 */
42 final class SoftReferenceGrammarPool implements XMLGrammarPool {
43
44 //
45 // Constants
46 //
47
48 /** Default size. */
49 protected static final int TABLE_SIZE = 11;
50
51 /** Zero length grammar array. */
52 protected static final Grammar [] ZERO_LENGTH_GRAMMAR_ARRAY = new Grammar [0];
53
54 //
55 // Data
56 //
57
58 /** Grammars. */
59 protected Entry [] fGrammars = null;
60
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1 /*
2 * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
3 */
4 /*
5 * Licensed to the Apache Software Foundation (ASF) under one or more
6 * contributor license agreements. See the NOTICE file distributed with
7 * this work for additional information regarding copyright ownership.
8 * The ASF licenses this file to You under the Apache License, Version 2.0
9 * (the "License"); you may not use this file except in compliance with
10 * the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
19 */
20
21 package com.sun.org.apache.xerces.internal.jaxp.validation;
22
23 import java.lang.ref.Reference;
24 import java.lang.ref.ReferenceQueue;
25 import java.lang.ref.SoftReference;
26
27 import com.sun.org.apache.xerces.internal.xni.grammars.Grammar;
28 import com.sun.org.apache.xerces.internal.xni.grammars.XMLGrammarDescription;
29 import com.sun.org.apache.xerces.internal.xni.grammars.XMLSchemaDescription;
30 import com.sun.org.apache.xerces.internal.xni.grammars.XMLGrammarPool;
31
32 /**
33 * <p>This grammar pool is a memory sensitive cache. The grammars
34 * stored in the pool are softly reachable and may be cleared by
35 * the garbage collector in response to memory demand. Equality
36 * of <code>XMLSchemaDescription</code>s is determined using both
37 * the target namespace for the schema and schema location.</p>
38 *
39 * @author Michael Glavassevich, IBM
40 * @LastModified: Nov 2017
41 */
42 final class SoftReferenceGrammarPool implements XMLGrammarPool {
43
44 //
45 // Constants
46 //
47
48 /** Default size. */
49 protected static final int TABLE_SIZE = 11;
50
51 /** Zero length grammar array. */
52 protected static final Grammar [] ZERO_LENGTH_GRAMMAR_ARRAY = new Grammar [0];
53
54 //
55 // Data
56 //
57
58 /** Grammars. */
59 protected Entry [] fGrammars = null;
60
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