41 lines
1.4 KiB
Java
Executable File
41 lines
1.4 KiB
Java
Executable File
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/* ====================================================================
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Licensed to the Apache Software Foundation (ASF) under one or more
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contributor license agreements. See the NOTICE file distributed with
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this work for additional information regarding copyright ownership.
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The ASF licenses this file to You under the Apache License, Version 2.0
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(the "License"); you may not use this file except in compliance with
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the License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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==================================================================== */
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package org.apache.poi.util;
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import java.util.*;
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/**
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* Returns immutable Btfield instances.
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*
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* @author Jason Height (jheight at apache dot org)
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*/
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public class BitFieldFactory {
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private static Map instances = new HashMap();
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public static BitField getInstance(int mask) {
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BitField f = (BitField)instances.get(Integer.valueOf(mask));
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if (f == null) {
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f = new BitField(mask);
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instances.put(Integer.valueOf(mask), f);
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}
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return f;
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}
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}
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