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https://github.com/apache/poi.git
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44 lines
1.3 KiB
Java
44 lines
1.3 KiB
Java
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/* ====================================================================
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Copyright 2002-2004 Apache Software Foundation
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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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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{
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private static Map instances = new HashMap();
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public static BitField getInstance(final int mask) {
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BitField f = (BitField)instances.get(new Integer(mask));
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if (f == null) {
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f = new BitField(mask);
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instances.put(new Integer(mask), f);
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}
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return f;
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}
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} // end public class BitFieldFactory
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