1 files changed, 50 insertions, 0 deletions
diff --git a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/predicate/int_/DisabledIntPredicate.java b/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/predicate/int_/DisabledIntPredicate.java
new file mode 100644
index 0000000000..cd4d4fd784
--- /dev/null
+++ b/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/predicate/int_/DisabledIntPredicate.java
@@ -0,0 +1,50 @@
+/*******************************************************************************
+ * Copyright (c) 2005, 2015 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.predicate.int_;
+
+import java.io.Serializable;
+import org.eclipse.jpt.common.utility.predicate.IntPredicate;
+
+/**
+ * Singleton predicate that throws an 
+ * {@link UnsupportedOperationException exception} if evaluated.
+ */
+public final class DisabledIntPredicate
+	implements IntPredicate, Serializable
+{
+	public static final IntPredicate INSTANCE = new DisabledIntPredicate();
+
+	public static IntPredicate instance() {
+		return INSTANCE;
+	}
+
+	// ensure single instance
+	private DisabledIntPredicate() {
+		super();
+	}
+
+	/**
+	 * Throw an {@link UnsupportedOperationException exception}.
+	 */
+	public boolean evaluate(int variable) {
+		throw new UnsupportedOperationException();
+	}
+
+	@Override
+	public String toString() {
+		return this.getClass().getSimpleName();
+	}
+
+	private static final long serialVersionUID = 1L;
+	private Object readResolve() {
+		// replace this object with the singleton
+		return INSTANCE;
+	}
+}