Provide API to GUI to judge whether a ReportItemHandle binds to a linked

data set.

data/org.eclipse.birt.report.data.adapter/src/org/eclipse/birt/report/data/adapter/api/LinkedDataSetUtil.java

@@ -0,0 +1,31 @@
+package org.eclipse.birt.report.data.adapter.api;
+
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+
+import org.eclipse.birt.report.model.api.ReportItemHandle;
+
+
+public class LinkedDataSetUtil
+{
+
+	private static String GET_LINKED_DATA_MODEL_METHOD = "getLinkedDataModel";
+
+	public static boolean bindToLinkedDataSet( ReportItemHandle reportItemHandle )
+			throws IllegalArgumentException, IllegalAccessException,
+			InvocationTargetException
+	{
+		Method[] methods = reportItemHandle.getClass( ).getMethods( );
+		for ( int i = 0; i < methods.length; i++ )
+		{
+			String name = methods[i].getName( );
+			if ( name.equals( GET_LINKED_DATA_MODEL_METHOD ) )
+			{
+				Object result = methods[i].invoke( reportItemHandle );
+				if ( result != null )
+					return true;
+			}
+		}
+		return false;
+	}
+}