Author: fguillaume
Date: Mon Nov 22 14:08:25 2010
New Revision: 1037726
URL: http://svn.apache.org/viewvc?rev=1037726&view=rev
Log:
Added utility EmptyItemIterable
Added:
incubator/chemistry/opencmis/trunk/chemistry-opencmis-client/chemistry-opencmis-client-impl/src/main/java/org/apache/chemistry/opencmis/client/runtime/util/EmptyItemIterable.java
(with props)
Added:
incubator/chemistry/opencmis/trunk/chemistry-opencmis-client/chemistry-opencmis-client-impl/src/main/java/org/apache/chemistry/opencmis/client/runtime/util/EmptyItemIterable.java
URL:
http://svn.apache.org/viewvc/incubator/chemistry/opencmis/trunk/chemistry-opencmis-client/chemistry-opencmis-client-impl/src/main/java/org/apache/chemistry/opencmis/client/runtime/util/EmptyItemIterable.java?rev=1037726&view=auto
==============================================================================
---
incubator/chemistry/opencmis/trunk/chemistry-opencmis-client/chemistry-opencmis-client-impl/src/main/java/org/apache/chemistry/opencmis/client/runtime/util/EmptyItemIterable.java
(added)
+++
incubator/chemistry/opencmis/trunk/chemistry-opencmis-client/chemistry-opencmis-client-impl/src/main/java/org/apache/chemistry/opencmis/client/runtime/util/EmptyItemIterable.java
Mon Nov 22 14:08:25 2010
@@ -0,0 +1,89 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.chemistry.opencmis.client.runtime.util;
+
+import java.util.Iterator;
+import java.util.NoSuchElementException;
+
+import org.apache.chemistry.opencmis.client.api.ItemIterable;
+
+/**
+ * An empty item iterable.
+ */
+public class EmptyItemIterable<T> implements ItemIterable<T> {
+
+ public static final EmptyItemIterable<?> INSTANCE = new
EmptyItemIterable<Object>();
+
+ @SuppressWarnings("unchecked")
+ public static <U> EmptyItemIterable<U> instance() {
+ return (EmptyItemIterable<U>) INSTANCE;
+ }
+
+ public ItemIterable<T> skipTo(long position) {
+ if (position != 0) {
+ throw new IllegalArgumentException(String.valueOf(position));
+ }
+ return this;
+ }
+
+ public ItemIterable<T> getPage() {
+ return this;
+ }
+
+ public ItemIterable<T> getPage(int maxNumItems) {
+ return this;
+ }
+
+ @SuppressWarnings("unchecked")
+ public Iterator<T> iterator() {
+ return (Iterator<T>) EmptyIterator.INSTANCE;
+ }
+
+ public long getPageNumItems() {
+ return 0;
+ }
+
+ public boolean getHasMoreItems() {
+ return false;
+ }
+
+ public long getTotalNumItems() {
+ return 0;
+ }
+
+ /**
+ * An empty iterator.
+ */
+ public static class EmptyIterator<V> implements Iterator<V> {
+ public static final Iterator<?> INSTANCE = new EmptyIterator<Object>();
+
+ public boolean hasNext() {
+ return false;
+ }
+
+ public V next() {
+ throw new NoSuchElementException();
+ }
+
+ public void remove() {
+ throw new UnsupportedOperationException();
+ }
+ }
+
+}
Propchange:
incubator/chemistry/opencmis/trunk/chemistry-opencmis-client/chemistry-opencmis-client-impl/src/main/java/org/apache/chemistry/opencmis/client/runtime/util/EmptyItemIterable.java
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Propchange:
incubator/chemistry/opencmis/trunk/chemistry-opencmis-client/chemistry-opencmis-client-impl/src/main/java/org/apache/chemistry/opencmis/client/runtime/util/EmptyItemIterable.java
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svn:keywords = Id
Propchange:
incubator/chemistry/opencmis/trunk/chemistry-opencmis-client/chemistry-opencmis-client-impl/src/main/java/org/apache/chemistry/opencmis/client/runtime/util/EmptyItemIterable.java
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