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HSQLDB example source code file (IntKeyIntValueHashMap.java)
The HSQLDB IntKeyIntValueHashMap.java source code/* Copyright (c) 2001-2008, The HSQL Development Group * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * Redistributions of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * Neither the name of the HSQL Development Group nor the names of its * contributors may be used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL HSQL DEVELOPMENT GROUP, HSQLDB.ORG, * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ package org.hsqldb.lib; import java.util.NoSuchElementException; import org.hsqldb.store.BaseHashMap; /** * @author fredt@users * @version 1.7.2 * @since 1.7.2 */ public class IntKeyIntValueHashMap extends BaseHashMap { private Set keySet; private Collection values; public IntKeyIntValueHashMap() { this(16, 0.75f); } public IntKeyIntValueHashMap(int initialCapacity) throws IllegalArgumentException { this(initialCapacity, 0.75f); } public IntKeyIntValueHashMap(int initialCapacity, float loadFactor) throws IllegalArgumentException { super(initialCapacity, loadFactor, BaseHashMap.intKeyOrValue, BaseHashMap.intKeyOrValue, false); } public int get(int key) throws NoSuchElementException { int lookup = getLookup(key); if (lookup != -1) { return intValueTable[lookup]; } throw new NoSuchElementException(); } public int get(int key, int defaultValue) { int lookup = getLookup(key); if (lookup != -1) { return intValueTable[lookup]; } return defaultValue; } public boolean get(int key, int[] value) { int lookup = getLookup(key); if (lookup != -1) { value[0] = intValueTable[lookup]; return true; } return false; } public boolean put(int key, int value) { int oldSize = size(); super.addOrRemove(key, value, null, null, false); return oldSize != size(); } public boolean remove(int key) { int oldSize = size(); super.addOrRemove(key, 0, null, null, true); return oldSize != size(); } public Set keySet() { if (keySet == null) { keySet = new KeySet(); } return keySet; } public Collection values() { if (values == null) { values = new Values(); } return values; } class KeySet implements Set { public Iterator iterator() { return IntKeyIntValueHashMap.this.new BaseHashIterator(true); } public int size() { return IntKeyIntValueHashMap.this.size(); } public boolean contains(Object o) { throw new RuntimeException(); } public Object get(Object key) { throw new RuntimeException(); } public boolean add(Object value) { throw new RuntimeException(); } public boolean addAll(Collection c) { throw new RuntimeException(); } public boolean remove(Object o) { throw new RuntimeException(); } public boolean isEmpty() { return size() == 0; } public void clear() { IntKeyIntValueHashMap.this.clear(); } } class Values implements Collection { public Iterator iterator() { return IntKeyIntValueHashMap.this.new BaseHashIterator(false); } public int size() { return IntKeyIntValueHashMap.this.size(); } public boolean contains(Object o) { throw new RuntimeException(); } public boolean add(Object value) { throw new RuntimeException(); } public boolean addAll(Collection c) { throw new RuntimeException(); } public boolean remove(Object o) { throw new RuntimeException(); } public boolean isEmpty() { return size() == 0; } public void clear() { IntKeyIntValueHashMap.this.clear(); } } } Other HSQLDB examples (source code examples)Here is a short list of links related to this HSQLDB IntKeyIntValueHashMap.java source code file: |
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