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Posted to dev@commons.apache.org by rw...@apache.org on 2003/01/05 04:03:14 UTC
cvs commit: jakarta-commons/collections/src/java/org/apache/commons/collections/primitives AbstractIntCollection.java
rwaldhoff 2003/01/04 19:03:14
Added: collections/src/java/org/apache/commons/collections/primitives
AbstractIntCollection.java
Log:
add base int collection impl
Revision Changes Path
1.1 jakarta-commons/collections/src/java/org/apache/commons/collections/primitives/AbstractIntCollection.java
Index: AbstractIntCollection.java
===================================================================
/*
* $Header: /home/cvs/jakarta-commons/collections/src/java/org/apache/commons/collections/primitives/AbstractIntCollection.java,v 1.1 2003/01/05 03:03:14 rwaldhoff Exp $
* $Revision: 1.1 $
* $Date: 2003/01/05 03:03:14 $
*
* ====================================================================
*
* The Apache Software License, Version 1.1
*
* Copyright (c) 2003 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. 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.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "The Jakarta Project", "Commons", and "Apache Software
* Foundation" must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache"
* nor may "Apache" appear in their names without prior written
* permission of the Apache Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 THE APACHE SOFTWARE FOUNDATION OR
* ITS 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.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
*/
package org.apache.commons.collections.primitives;
/**
* @version $Revision: 1.1 $ $Date: 2003/01/05 03:03:14 $
* @author Rodney Waldhoff
*/
abstract class AbstractIntCollection implements IntCollection {
public abstract IntIterator iterator();
public abstract int size();
protected AbstractIntCollection() { }
/** Unsupported in this base implementation. */
public boolean add(int element) {
throw new UnsupportedOperationException("add(int) is not supported.");
}
public boolean addAll(IntCollection c) {
boolean modified = false;
for(IntIterator iter = c.iterator(); iter.hasNext(); ) {
modified |= add(iter.next());
}
return modified;
}
public void clear() {
for(IntIterator iter = iterator(); iter.hasNext();) {
iter.next();
iter.remove();
}
}
public boolean contains(int element) {
for(IntIterator iter = iterator(); iter.hasNext();) {
if(iter.next() == element) {
return true;
}
}
return false;
}
public boolean containsAll(IntCollection c) {
for(IntIterator iter = c.iterator(); iter.hasNext();) {
if(!contains(iter.next())) {
return false;
}
}
return true;
}
public boolean isEmpty() {
return (0 == size());
}
public boolean removeElement(int element) {
for(IntIterator iter = iterator(); iter.hasNext();) {
if(iter.next() == element) {
iter.remove();
return true;
}
}
return false;
}
public boolean removeAll(IntCollection c) {
boolean modified = false;
for(IntIterator iter = c.iterator(); iter.hasNext(); ) {
modified |= removeElement(iter.next());
}
return modified;
}
public boolean retainAll(IntCollection c) {
boolean modified = false;
for(IntIterator iter = iterator(); iter.hasNext();) {
if(!c.contains(iter.next())) {
iter.remove();
modified = true;
}
}
return modified;
}
public int[] toArray() {
int[] array = new int[size()];
int i = 0;
for(IntIterator iter = iterator(); iter.hasNext();) {
array[i] = iter.next();
i++;
}
return array;
}
public int[] toArray(int[] a) {
if(a.length < size()) {
return toArray();
} else {
int i = 0;
for(IntIterator iter = iterator(); iter.hasNext();) {
a[i] = iter.next();
i++;
}
return a;
}
}
}
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