UnaryOperatorExpression (Commons EL 1.0.1-SNAPSHOT API)

java.lang.Object
- org.apache.commons.el.Expression
- - org.apache.commons.el.UnaryOperatorExpression

```
public class UnaryOperatorExpression
extends Expression
```
An expression representing one or more unary operators on a value

Version:

$Change: 181177 $$DateTime: 2001/06/26 08:45:09 $$Author: bayard $

Author:

Nathan Abramson - Art Technology Group, Shawn Bayern

Constructor Summary

Constructors
Constructor and Description
`UnaryOperatorExpression(UnaryOperator pOperator, List pOperators, Expression pExpression)` Constructor

Method Summary

Methods
Modifier and Type	Method and Description
`Expression`	`bindFunctions(FunctionMapper functions)` Returns an expression with all `FunctionInvocation`s replaced by `BoundFunctionInvocation`s.
`Object`	`evaluate(VariableResolver pResolver, FunctionMapper functions)` Evaluates to the literal value
`Expression`	`getExpression()`
`String`	`getExpressionString()` Returns the expression in the expression language syntax
`UnaryOperator`	`getOperator()`
`List`	`getOperators()`
`void`	`setExpression(Expression pExpression)`
`void`	`setOperator(UnaryOperator pOperator)`
`void`	`setOperators(List pOperators)`

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

- Constructor Detail
  - UnaryOperatorExpression
```
public UnaryOperatorExpression(UnaryOperator pOperator,
                       List pOperators,
                       Expression pExpression)
```
    Constructor
- Method Detail
  - getOperator
```
public UnaryOperator getOperator()
```
  - setOperator
```
public void setOperator(UnaryOperator pOperator)
```
  - getOperators
```
public List getOperators()
```
  - setOperators
```
public void setOperators(List pOperators)
```
  - getExpression
```
public Expression getExpression()
```
  - setExpression
```
public void setExpression(Expression pExpression)
```
  - getExpressionString
```
public String getExpressionString()
```
    Returns the expression in the expression language syntax
    
    Specified by:
    
    getExpressionString in class Expression
  - evaluate
```
public Object evaluate(VariableResolver pResolver,
              FunctionMapper functions)
                throws ELException
```
    Evaluates to the literal value
    
    Specified by:
    
    evaluate in class Expression
    
    Throws:
    
    ELException
  - bindFunctions
```
public Expression bindFunctions(FunctionMapper functions)
                         throws ELException
```
    Description copied from class: Expression
    
    Returns an expression with all FunctionInvocations replaced by BoundFunctionInvocations.
    
    Specified by:
    
    bindFunctions in class Expression
    
    Parameters:
    functions - the functions to use in this transformation
    
    Returns:
    an Expression identical to this expression except with all FunctionInvocations replaced by BoundFunctionInvocations.
    
    Throws:
    
    ELException - if any of the functions in this Expression are not present in functions

Class UnaryOperatorExpression

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

UnaryOperatorExpression

Method Detail

getOperator

setOperator

getOperators

setOperators

getExpression

setExpression

getExpressionString

evaluate

bindFunctions