From 97b8365cafc3a344a22d3980b8ed885f5c6d8357 Mon Sep 17 00:00:00 2001
From: Tom Tromey <tromey@gcc.gnu.org>
Date: Tue, 9 Jan 2007 19:58:05 +0000
Subject: Merged gcj-eclipse branch to trunk.

From-SVN: r120621
---
 .../util/concurrent/ConcurrentNavigableMap.java    | 148 +++++++++++++++++++++
 1 file changed, 148 insertions(+)
 create mode 100644 libjava/classpath/external/jsr166/java/util/concurrent/ConcurrentNavigableMap.java

(limited to 'libjava/classpath/external/jsr166/java/util/concurrent/ConcurrentNavigableMap.java')

diff --git a/libjava/classpath/external/jsr166/java/util/concurrent/ConcurrentNavigableMap.java b/libjava/classpath/external/jsr166/java/util/concurrent/ConcurrentNavigableMap.java
new file mode 100644
index 00000000000..7d86afb7034
--- /dev/null
+++ b/libjava/classpath/external/jsr166/java/util/concurrent/ConcurrentNavigableMap.java
@@ -0,0 +1,148 @@
+/*
+ * Written by Doug Lea with assistance from members of JCP JSR-166
+ * Expert Group and released to the public domain, as explained at
+ * http://creativecommons.org/licenses/publicdomain
+ */
+
+package java.util.concurrent;
+import java.util.*;
+
+/**
+ * A {@link ConcurrentMap} supporting {@link NavigableMap} operations,
+ * and recursively so for its navigable sub-maps.
+ *
+ * <p>This interface is a member of the
+ * <a href="{@docRoot}/../technotes/guides/collections/index.html">
+ * Java Collections Framework</a>.
+ *
+ * @author Doug Lea
+ * @param <K> the type of keys maintained by this map
+ * @param <V> the type of mapped values
+ * @since 1.6
+ */
+public interface ConcurrentNavigableMap<K,V>
+    extends ConcurrentMap<K,V>, NavigableMap<K,V>
+{
+    /**
+     * @throws ClassCastException       {@inheritDoc}
+     * @throws NullPointerException     {@inheritDoc}
+     * @throws IllegalArgumentException {@inheritDoc}
+     */
+    ConcurrentNavigableMap<K,V> subMap(K fromKey, boolean fromInclusive,
+                                       K toKey,   boolean toInclusive);
+
+    /**
+     * @throws ClassCastException       {@inheritDoc}
+     * @throws NullPointerException     {@inheritDoc}
+     * @throws IllegalArgumentException {@inheritDoc}
+     */
+    ConcurrentNavigableMap<K,V> headMap(K toKey, boolean inclusive);
+
+
+    /**
+     * @throws ClassCastException       {@inheritDoc}
+     * @throws NullPointerException     {@inheritDoc}
+     * @throws IllegalArgumentException {@inheritDoc}
+     */
+    ConcurrentNavigableMap<K,V> tailMap(K fromKey, boolean inclusive);
+
+    /**
+     * @throws ClassCastException       {@inheritDoc}
+     * @throws NullPointerException     {@inheritDoc}
+     * @throws IllegalArgumentException {@inheritDoc}
+     */
+    ConcurrentNavigableMap<K,V> subMap(K fromKey, K toKey);
+
+    /**
+     * @throws ClassCastException       {@inheritDoc}
+     * @throws NullPointerException     {@inheritDoc}
+     * @throws IllegalArgumentException {@inheritDoc}
+     */
+    ConcurrentNavigableMap<K,V> headMap(K toKey);
+
+    /**
+     * @throws ClassCastException       {@inheritDoc}
+     * @throws NullPointerException     {@inheritDoc}
+     * @throws IllegalArgumentException {@inheritDoc}
+     */
+    ConcurrentNavigableMap<K,V> tailMap(K fromKey);
+
+    /**
+     * Returns a reverse order view of the mappings contained in this map.
+     * The descending map is backed by this map, so changes to the map are
+     * reflected in the descending map, and vice-versa.
+     *
+     * <p>The returned map has an ordering equivalent to
+     * <tt>{@link Collections#reverseOrder(Comparator) Collections.reverseOrder}(comparator())</tt>.
+     * The expression {@code m.descendingMap().descendingMap()} returns a
+     * view of {@code m} essentially equivalent to {@code m}.
+     *
+     * @return a reverse order view of this map
+     */
+    ConcurrentNavigableMap<K,V> descendingMap();
+
+    /**
+     * Returns a {@link NavigableSet} view of the keys contained in this map.
+     * The set's iterator returns the keys in ascending order.
+     * The set is backed by the map, so changes to the map are
+     * reflected in the set, and vice-versa.  The set supports element
+     * removal, which removes the corresponding mapping from the map,
+     * via the {@code Iterator.remove}, {@code Set.remove},
+     * {@code removeAll}, {@code retainAll}, and {@code clear}
+     * operations.  It does not support the {@code add} or {@code addAll}
+     * operations.
+     *
+     * <p>The view's {@code iterator} is a "weakly consistent" iterator
+     * that will never throw {@link ConcurrentModificationException},
+     * and guarantees to traverse elements as they existed upon
+     * construction of the iterator, and may (but is not guaranteed to)
+     * reflect any modifications subsequent to construction.
+     *
+     * @return a navigable set view of the keys in this map
+     */
+    public NavigableSet<K> navigableKeySet();
+
+    /**
+     * Returns a {@link NavigableSet} view of the keys contained in this map.
+     * The set's iterator returns the keys in ascending order.
+     * The set is backed by the map, so changes to the map are
+     * reflected in the set, and vice-versa.  The set supports element
+     * removal, which removes the corresponding mapping from the map,
+     * via the {@code Iterator.remove}, {@code Set.remove},
+     * {@code removeAll}, {@code retainAll}, and {@code clear}
+     * operations.  It does not support the {@code add} or {@code addAll}
+     * operations.
+     *
+     * <p>The view's {@code iterator} is a "weakly consistent" iterator
+     * that will never throw {@link ConcurrentModificationException},
+     * and guarantees to traverse elements as they existed upon
+     * construction of the iterator, and may (but is not guaranteed to)
+     * reflect any modifications subsequent to construction.
+     *
+     * <p>This method is equivalent to method {@code navigableKeySet}.
+     *
+     * @return a navigable set view of the keys in this map
+     */
+    NavigableSet<K> keySet();
+
+    /**
+     * Returns a reverse order {@link NavigableSet} view of the keys contained in this map.
+     * The set's iterator returns the keys in descending order.
+     * The set is backed by the map, so changes to the map are
+     * reflected in the set, and vice-versa.  The set supports element
+     * removal, which removes the corresponding mapping from the map,
+     * via the {@code Iterator.remove}, {@code Set.remove},
+     * {@code removeAll}, {@code retainAll}, and {@code clear}
+     * operations.  It does not support the {@code add} or {@code addAll}
+     * operations.
+     *
+     * <p>The view's {@code iterator} is a "weakly consistent" iterator
+     * that will never throw {@link ConcurrentModificationException},
+     * and guarantees to traverse elements as they existed upon
+     * construction of the iterator, and may (but is not guaranteed to)
+     * reflect any modifications subsequent to construction.
+     *
+     * @return a reverse order navigable set view of the keys in this map
+     */
+    public NavigableSet<K> descendingKeySet();
+}
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