diff options
Diffstat (limited to 'common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/iterables/FilteringIterable.java')
-rw-r--r-- | common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/iterables/FilteringIterable.java | 95 |
1 files changed, 0 insertions, 95 deletions
diff --git a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/iterables/FilteringIterable.java b/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/iterables/FilteringIterable.java deleted file mode 100644 index 897f0d908e..0000000000 --- a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/iterables/FilteringIterable.java +++ /dev/null @@ -1,95 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2009, 2010 Oracle. All rights reserved. - * This program and the accompanying materials are made available under the - * terms of the Eclipse Public License v1.0, which accompanies this distribution - * and is available at http://www.eclipse.org/legal/epl-v10.html. - * - * Contributors: - * Oracle - initial API and implementation - ******************************************************************************/ -package org.eclipse.jpt.common.utility.internal.iterables; - -import java.util.Iterator; - -import org.eclipse.jpt.common.utility.Filter; -import org.eclipse.jpt.common.utility.internal.StringTools; -import org.eclipse.jpt.common.utility.internal.iterators.FilteringIterator; - -/** - * A <code>FilteringIterable</code> wraps another {@link Iterable} - * and uses a {@link Filter} to determine which elements in the - * nested iterable are to be returned by the iterable's iterator. - * <p> - * As an alternative to building a {@link Filter}, a subclass - * of <code>FilteringIterable</code> can override the - * {@link #accept(Object)} method. - * - * @param <E> the type of elements to be filtered - * - * @see FilteringIterator - */ -public class FilteringIterable<E> - implements Iterable<E> -{ - private final Iterable<? extends E> iterable; - private final Filter<E> filter; - - - /** - * Construct an iterable with the specified nested - * iterable and a default filter that calls back to the iterable. - * Use this constructor if you want to override the - * {@link #accept(Object)} method instead of building - * a {@link Filter}. - */ - public FilteringIterable(Iterable<? extends E> iterable) { - super(); - this.iterable = iterable; - this.filter = this.buildDefaultFilter(); - } - - /** - * Construct an iterable with the specified nested - * iterable and filter. - */ - public FilteringIterable(Iterable<? extends E> iterable, Filter<E> filter) { - super(); - this.iterable = iterable; - this.filter = filter; - } - - protected Filter<E> buildDefaultFilter() { - return new DefaultFilter(); - } - - public Iterator<E> iterator() { - return new FilteringIterator<E>(this.iterable.iterator(), this.filter); - } - - /** - * Return whether the iterable's iterator - * should return the specified next element from a call to the - * {@link Iterator#next()} method. - * <p> - * This method can be overridden by a subclass as an - * alternative to building a {@link Filter}. - */ - protected boolean accept(@SuppressWarnings("unused") E o) { - throw new RuntimeException("This method was not overridden."); //$NON-NLS-1$ - } - - @Override - public String toString() { - return StringTools.buildToStringFor(this, this.iterable); - } - - - //********** default filter ********** - - protected class DefaultFilter implements Filter<E> { - public boolean accept(E o) { - return FilteringIterable.this.accept(o); - } - } - -} |