1 files changed, 50 insertions, 0 deletions
diff --git a/jpa/plugins/org.eclipse.jpt.core/src/org/eclipse/jpt/core/internal/jdtutility/AbstractExpressionConverter.java b/jpa/plugins/org.eclipse.jpt.core/src/org/eclipse/jpt/core/internal/jdtutility/AbstractExpressionConverter.java
new file mode 100644
index 0000000000..7e910480a2
--- /dev/null
+++ b/jpa/plugins/org.eclipse.jpt.core/src/org/eclipse/jpt/core/internal/jdtutility/AbstractExpressionConverter.java
@@ -0,0 +1,50 @@
+/*******************************************************************************
+ * Copyright (c) 2006 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.core.internal.jdtutility;
+
+import org.eclipse.jdt.core.dom.AST;
+import org.eclipse.jdt.core.dom.Expression;
+import org.eclipse.jpt.utility.internal.StringTools;
+
+/**
+ * Gather together just the tiniest bit of common behavior.
+ */
+public abstract class AbstractExpressionConverter implements ExpressionConverter {
+
+	protected AbstractExpressionConverter() {
+		super();
+	}
+
+	public Expression convert(Object o, AST ast) {
+		return (o == null) ? null : this.convert_(o, ast);
+	}
+
+	/**
+	 * The specified object is not null.
+	 * @see #convert(Object, AST)
+	 */
+	protected abstract Expression convert_(Object o, AST ast);
+
+	public Object convert(Expression expression) {
+		return (expression == null) ? null : this.convert_(expression);
+	}
+
+	/**
+	 * The specified expression is not null.
+	 * @see #convert(Expression)
+	 */
+	protected abstract Object convert_(Expression expression);
+
+	@Override
+	public String toString() {
+		return StringTools.buildToStringFor(this);
+	}
+
+}