/**
* INTERNAL:
* Use TRIM(FROM ?) function for trim.
*/
public static ExpressionOperator trimOperator() {
ExpressionOperator exOperator = new ExpressionOperator();
exOperator.setType(ExpressionOperator.FunctionOperator);
exOperator.setSelector(ExpressionOperator.Trim);
Vector v = org.eclipse.persistence.internal.helper.NonSynchronizedVector.newInstance(2);
v.addElement("TRIM(FROM ");
v.addElement(")");
exOperator.printsAs(v);
exOperator.bePrefix();
exOperator.setNodeClass(ClassConstants.FunctionExpression_Class);
return exOperator;
}