1 files changed, 87 insertions, 0 deletions
diff --git a/bundles/org.eclipse.compare/plugins/org.eclipse.compare/compare/org/eclipse/compare/structuremergeviewer/DiffElement.java b/bundles/org.eclipse.compare/plugins/org.eclipse.compare/compare/org/eclipse/compare/structuremergeviewer/DiffElement.java
new file mode 100644
index 000000000..645ae7a64
--- /dev/null
+++ b/bundles/org.eclipse.compare/plugins/org.eclipse.compare/compare/org/eclipse/compare/structuremergeviewer/DiffElement.java
@@ -0,0 +1,87 @@
+/*
+ * Licensed Materials - Property of IBM,
+ * WebSphere Studio Workbench
+ * (c) Copyright IBM Corp 2000, 2001
+ */
+package org.eclipse.compare.structuremergeviewer;
+
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.compare.ITypedElement;
+import org.eclipse.jface.util.Assert;
+
+/**
+ * An abstract base implementation of the <code>IDiffElement</code> interface.
+ * <p>
+ * Subclasses may add behavior and state, and may override <code>getImage</code>
+ * and <code>getType</code> to suit.
+ * </p>
+ */
+public abstract class DiffElement implements IDiffElement {
+
+	private int fKind;
+	private IDiffContainer fParent;
+
+	/**
+	 * Creates a new <code>DiffElement</code> as a child of the given parent.
+	 * If parent is not <code>null</code> the new element is added to the parent.
+	 *
+	 * @param parent the parent of this child; if not <code>null</code> this element is automatically added as a child
+	 * @param kind the kind of change
+	 */
+	public DiffElement(IDiffContainer parent, int kind) {
+		fParent= parent;
+		fKind= kind;
+		if (parent != null)
+			parent.add(this);
+	}
+
+	/**
+	 * The <code>DiffElement</code> implementation of this <code>ITypedInput</code>
+	 * method returns <code>null</code>. Subclasses may re-implement to provide
+	 * an image for this element.
+	 */
+	public Image getImage() {
+		return null;
+	}
+
+	/**
+	 * The <code>DiffElement</code> implementation of this <code>ITypedElement</code>
+	 * method returns <code>ITypedElement.UNKNOWN_TYPE</code>. Subclasses may
+	 * re-implement to provide a type for this element.
+	 */
+	public String getType() {
+		return ITypedElement.UNKNOWN_TYPE;
+	}
+
+	/**
+	 * Sets the kind of difference for this element.
+	 *
+	 * @param kind set the kind of difference this element represents
+	 * @see Differencer
+	 */
+	public void setKind(int kind) {
+		fKind= kind;
+	}
+
+	/* (non Javadoc)
+	 * see IDiffElement.getKind
+	 */
+	public int getKind() {
+		return fKind;
+	}
+
+	/* (non Javadoc)
+	 * see IDiffElement.getParent
+	 */
+	public IDiffContainer getParent() {
+		return fParent;
+	}
+
+	/* (non Javadoc)
+	 * see IDiffElement.setParent
+	 */
+	public void setParent(IDiffContainer parent) {
+		fParent= parent;
+	}
+}
+