Compare (Castor JavaDoc)

java.lang.Object
- org.castor.cpa.persistence.sql.query.condition.Condition
- - org.castor.cpa.persistence.sql.query.condition.Compare

All Implemented Interfaces:

QueryObject
```
public final class Compare
extends Condition
```
Compare 2 conditions with an operator.

Version:

$Revision$ $Date: 2006-04-25 15:08:23 -0600 (Tue, 25 Apr 2006) $

Author:

Ahmad Hassan, Ralf Joachim

Constructor Summary

Constructors
Constructor	Description
`Compare(Expression left, CompareOperator operator, Expression right)`	Constructor a compare condition that compares given left and rigth hand operand with given comparison operator.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`accept(Visitor visitor)`	Accept method to handle incoming visitors.
`Expression`	`leftExpression()`	Returns left operand of the comparison.
`Condition`	`not()`	Builder method to invert a condition.
`CompareOperator`	`operator()`	Returns operator of comparison.
`Expression`	`rightExpression()`	Returns right operand of the comparison.
`java.lang.String`	`toString()`	Method constructing query string.

Methods inherited from class org.castor.cpa.persistence.sql.query.condition.Condition
and, or

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - Compare
```
public Compare(Expression left,
               CompareOperator operator,
               Expression right)
```
    Constructor a compare condition that compares given left and rigth hand operand with given comparison operator.
    
    Parameters:
    
    left - Left operand of the comparison.
    
    operator - Operator of comparison.
    
    right - Right operand of the comparison.
- Method Detail
  - leftExpression
```
public Expression leftExpression()
```
    Returns left operand of the comparison.
    
    Returns:
    
    Left operand of the comparison.
  - operator
```
public CompareOperator operator()
```
    Returns operator of comparison.
    
    Returns:
    
    Operator of comparison.
  - rightExpression
```
public Expression rightExpression()
```
    Returns right operand of the comparison.
    
    Returns:
    
    right operand of the comparison.
  - not
```
public Condition not()
```
    Description copied from class: Condition
    
    Builder method to invert a condition. A condition that evaluated to TRUE before calling this method will evaluate to FALSE thereafter.
    
    Specified by:
    
    not in class Condition
    
    Returns:
    
    Negated condition.
  - accept
```
public void accept(Visitor visitor)
```
    Accept method to handle incoming visitors.
    
    Parameters:
    
    visitor - Visitor to be handled.
  - toString
```
public java.lang.String toString()
```
    Method constructing query string.
    
    Overrides:
    
    toString in class java.lang.Object
    
    Returns:
    
    Constructed query string.

Class Compare

Constructor Summary

Method Summary

Methods inherited from class org.castor.cpa.persistence.sql.query.condition.Condition

Methods inherited from class java.lang.Object

Constructor Detail

Compare

Method Detail

leftExpression

operator

rightExpression

not

accept

toString