ExpressionString (Commons EL 1.0.1-SNAPSHOT API)

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

```
public class ExpressionString
extends Expression
```
Represents an expression String consisting of a mixture of Strings and Expressions.

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

ExpressionString(Object[] pElements)
Constructor

Constructors
Constructor and Description
`ExpressionString(Object[] pElements)` 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 the expression string by evaluating each element, converting it to a String (using toString, or "" for null values) and concatenating the results into a single String.
`Object[]`	`getElements()`
`String`	`getExpressionString()` Returns the expression in the expression language syntax
`void`	`setElements(Object[] pElements)`

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

- Constructor Detail
  - ExpressionString
```
public ExpressionString(Object[] pElements)
```
    Constructor
- Method Detail
  - getElements
```
public Object[] getElements()
```
  - setElements
```
public void setElements(Object[] pElements)
```
  - evaluate
```
public Object evaluate(VariableResolver pResolver,
              FunctionMapper functions)
                throws ELException
```
    Evaluates the expression string by evaluating each element, converting it to a String (using toString, or "" for null values) and concatenating the results into a single String.
    
    Specified by:
    
    evaluate in class Expression
    
    Throws:
    
    ELException
  - getExpressionString
```
public String getExpressionString()
```
    Returns the expression in the expression language syntax
    
    Specified by:
    
    getExpressionString in class Expression
  - 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 ExpressionString

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

ExpressionString

Method Detail

getElements

setElements

evaluate

getExpressionString

bindFunctions