Bug 122254 Not Like operator is missing in the Filter tab of Data Set window
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/script/ScriptEvalUtil.java
case IConditionalExpression.OP_GE :
				result = compare( resultObject, resultOp1 ) >= 0;
				break;
			case IConditionalExpression.OP_GT :
				result = compare( resultObject, resultOp1 ) > 0;
				break;
			case IConditionalExpression.OP_BETWEEN :
				result = between( resultObject, resultOp1, resultOp2 );
				break;
			case IConditionalExpression.OP_NOT_BETWEEN :
				result = !( between( resultObject, resultOp1, resultOp2 ) );
				break;
			case IConditionalExpression.OP_NULL :
				result = resultObject == null;
				break;
			case IConditionalExpression.OP_NOT_NULL :
				result = resultObject != null;
				break;
			case IConditionalExpression.OP_TRUE :
				result = isTrueOrFalse( resultObject, Boolean.TRUE );
				break;
			case IConditionalExpression.OP_FALSE :
				result = isTrueOrFalse( resultObject, Boolean.FALSE );
				break;
			case IConditionalExpression.OP_LIKE :
				result = like( resultObject, resultOp1 );
				break;
				
			case IConditionalExpression.OP_TOP_N :
			case IConditionalExpression.OP_BOTTOM_N :