org.jpox.store.expression
Class ScalarExpression.MonadicOperator

java.lang.Object
  org.jpox.store.expression.ScalarExpression.Operator
      org.jpox.store.expression.ScalarExpression.MonadicOperator

Enclosing class:

ScalarExpression

protected static class ScalarExpression.MonadicOperator

extends ScalarExpression.Operator

"Monadic" operator performs a function on one operand. It can be in either postfix or prefix notation.

• Prefix notation means that the operator appears before its operand. operator operand
• Postfix notation means that the operator appears after its operand. operand operator

Field Summary

Fields inherited from class org.jpox.store.expression.ScalarExpression.Operator

precedence, symbol

Constructor Summary

ScalarExpression.MonadicOperator(java.lang.String symbol, int precedence)
Monodiac operator

Method Summary

boolean

isHigherThan(ScalarExpression.Operator op) Check if this operator has higher precedence than op

Methods inherited from class org.jpox.store.expression.ScalarExpression.Operator

toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

ScalarExpression.MonadicOperator

public ScalarExpression.MonadicOperator(java.lang.String symbol,
                                        int precedence)

Monodiac operator

Parameters:

symbol - the source text or symbol of an operator. e.g =, ==, +, /, >, <, etc

precedence - the order of precedence where the expression is compiled

Method Detail

isHigherThan

public boolean isHigherThan(ScalarExpression.Operator op)

Check if this operator has higher precedence than op

Parameters:

op - the operator

Returns:

true if this operation is higher