X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.utils.datastructures%2Fsrc%2Forg%2Fsimantics%2Futils%2Fdatastructures%2FArrayMapEntry.java;fp=bundles%2Forg.simantics.utils.datastructures%2Fsrc%2Forg%2Fsimantics%2Futils%2Fdatastructures%2FArrayMapEntry.java;h=4a7fd2e45fd0663686740f761779f70b2ca3cecb;hb=53059ca1a958697cc6235d27628614fbaa944d59;hp=0000000000000000000000000000000000000000;hpb=e87f0965679502de281692c298d66a7ae9507bd8;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.utils.datastructures/src/org/simantics/utils/datastructures/ArrayMapEntry.java b/bundles/org.simantics.utils.datastructures/src/org/simantics/utils/datastructures/ArrayMapEntry.java
new file mode 100644
index 000000000..4a7fd2e45
--- /dev/null
+++ b/bundles/org.simantics.utils.datastructures/src/org/simantics/utils/datastructures/ArrayMapEntry.java
@@ -0,0 +1,80 @@
+/*******************************************************************************
+ * Copyright (c) 2007, 2016 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * 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:
+ *     Semantum Oy - initial API and implementation
+ *******************************************************************************/
+package org.simantics.utils.datastructures;
+
+import java.util.Map;
+
+/**
+ * A common {@link Entry} implementation for both {@link ArrayMap}
+ * and {@link InterlacedArrayMap}.
+ * 
+ * @author Tuukka Lehtonen
+ *
+ * @param <K> key class
+ * @param <V> value class
+ */
+class ArrayMapEntry<K, V> implements Map.Entry<K, V> {
+    final K key;
+    V value;
+
+    /**
+     * Creates new entry.
+     */
+    ArrayMapEntry(int h, K k, V v) {
+        value = v;
+        key = k;
+    }
+
+    @Override
+    public final K getKey() {
+        return key;
+    }
+
+    @Override
+    public final V getValue() {
+        return value;
+    }
+
+    @Override
+    public final V setValue(V newValue) {
+        V oldValue = value;
+        value = newValue;
+        return oldValue;
+    }
+
+    @Override
+    public final boolean equals(Object o) {
+        if (!(o instanceof Map.Entry<?, ?>))
+            return false;
+        Map.Entry<?, ?> e = (Map.Entry<?, ?>)o;
+        Object k1 = getKey();
+        Object k2 = e.getKey();
+        if (k1 == k2 || (k1 != null && k1.equals(k2))) {
+            Object v1 = getValue();
+            Object v2 = e.getValue();
+            if (v1 == v2 || (v1 != null && v1.equals(v2)))
+                return true;
+        }
+        return false;
+    }
+
+    @Override
+    public final int hashCode() {
+        return (key==null   ? 0 : key.hashCode()) ^
+        (value==null ? 0 : value.hashCode());
+    }
+
+    @Override
+    public final String toString() {
+        return getKey() + "=" + getValue();
+    }
+}
\ No newline at end of file