Bug 136279 Structure and table datatypes should be hidden.
Description: Structure and table datatype should be hidden. Steps to reproduce: In table data binding, I saw structure and table two datatypes. They are not supported now, so they should be removed.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/adapter/ModelDteApiAdapter.java
return IJoinCondition.OP_EQ;
		return -1;
	}
	
	private int toDteJoinType ( String joinType )
	{
		if( joinType.equals( DesignChoiceConstants.JOIN_TYPE_INNER ))
		{
			return IJointDataSetDesign.INNER_JOIN;
		}
		else if( joinType.equals( DesignChoiceConstants.JOIN_TYPE_LEFT_OUT ))
		{
			return IJointDataSetDesign.LEFT_OUTER_JOIN;
		}
		else if( joinType.equals( DesignChoiceConstants.JOIN_TYPE_RIGHT_OUT ))
		{
			return IJointDataSetDesign.RIGHT_OUTER_JOIN;
		}
		return -1;
	}
	
	/**
	 * Evaluates a property binding Javascript expression
	 */
	String evaluatePropertyBindingExpr( String expr ) throws BirtException
	{
		Object result = JavascriptEvalUtil.evaluateScript( null, jsScope, expr,
				"property binding", 0 );
		return result.toString( );
	}