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Enable remove() 

from Ralph Wagner


git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/collections/trunk@130969 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Stephen Colebourne 2003-01-30 23:10:29 +00:00
parent 74d78a6d46
commit 389ea88c76
1 changed files with 16 additions and 7 deletions
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21
src/java/org/apache/commons/collections/iterators/FilterIterator.java
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@ -1,5 +1,5 @@
/* /*
* $Header: /home/jerenkrantz/tmp/commons/commons-convert/cvs/home/cvs/jakarta-commons//collections/src/java/org/apache/commons/collections/iterators/FilterIterator.java,v 1.2 2003/01/15 21:45:23 scolebourne Exp $ * $Header: /home/jerenkrantz/tmp/commons/commons-convert/cvs/home/cvs/jakarta-commons//collections/src/java/org/apache/commons/collections/iterators/FilterIterator.java,v 1.3 2003/01/30 23:10:29 scolebourne Exp $
* ==================================================================== * ====================================================================
* *
* The Apache Software License, Version 1.1 * The Apache Software License, Version 1.1
@ -69,10 +69,11 @@ import org.apache.commons.collections.Predicate;
* returned. * returned.
* *
* @since Commons Collections 1.0 * @since Commons Collections 1.0
* @version $Revision: 1.2 $ $Date: 2003/01/15 21:45:23 $ * @version $Revision: 1.3 $ $Date: 2003/01/30 23:10:29 $
* *
* @author <a href="mailto:jstrachan@apache.org">James Strachan</a> * @author <a href="mailto:jstrachan@apache.org">James Strachan</a>
* @author Jan Sorensen * @author Jan Sorensen
* @author Ralph Wagner
*/ */
public class FilterIterator extends ProxyIterator { public class FilterIterator extends ProxyIterator {
@ -150,13 +151,21 @@ public class FilterIterator extends ProxyIterator {
} }
/** /**
* Always throws UnsupportedOperationException as this class * Removes from the underlying collection of the base iterator the last
* does look-ahead with its internal iterator. * element returned by this iterator.
* This method can only be called
* if <code>next()</code> was called, but not after
* <code>hasNext()</code>, because the <code>hasNext()</code> call
* changes the base iterator.
* *
* @throws UnsupportedOperationException always * @throws IllegalStateException if <code>hasNext()</code> has already
* been called.
*/ */
public void remove() { public void remove() {
throw new UnsupportedOperationException(); if (nextObjectSet) {
throw new IllegalStateException("remove() cannot be called");
}
getIterator().remove();
} }