MethodExpression (EL 2.2 API Documentation

java.lang.Object
- javax.el.Expression
- - javax.el.MethodExpression

All Implemented Interfaces:

java.io.Serializable
```
public abstract class MethodExpression
extends Expression
```
See Also:
Serialized Form

Constructor Summary

Constructors
Constructor and Description

MethodExpression()

Constructors
Constructor and Description
`MethodExpression()`

Method Summary

Methods
Modifier and Type	Method and Description
`abstract MethodInfo`	`getMethodInfo(ELContext context)`
`abstract java.lang.Object`	`invoke(ELContext context, java.lang.Object[] params)`
`boolean`	`isParmetersProvided()`

Methods inherited from class javax.el.Expression
equals, getExpressionString, hashCode, isLiteralText

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

- Constructor Detail
  - MethodExpression
```
public MethodExpression()
```
- Method Detail
  - getMethodInfo
```
public abstract MethodInfo getMethodInfo(ELContext context)
                                  throws java.lang.NullPointerException,
                                         PropertyNotFoundException,
                                         MethodNotFoundException,
                                         ELException
```
    Parameters:
    context - The EL context for this evaluation
    
    Returns:
    Information about the method that this expression resolves to
    
    Throws:
    
    java.lang.NullPointerException - If the supplied context is null
    
    PropertyNotFoundException - If a property/variable resolution failed because no match was found or a match was found but was not readable
    
    MethodNotFoundException - If no matching method can be found
    
    ELException - Wraps any exception throw whilst resolving the property
  - invoke
```
public abstract java.lang.Object invoke(ELContext context,
                      java.lang.Object[] params)
                                 throws java.lang.NullPointerException,
                                        PropertyNotFoundException,
                                        MethodNotFoundException,
                                        ELException
```
    Parameters:
    context - The EL context for this evaluation
    params - The parameters with which to invoke this method expression
    
    Returns:
    The result of invoking this method expression
    
    Throws:
    
    java.lang.NullPointerException - If the supplied context is null
    
    PropertyNotFoundException - If a property/variable resolution failed because no match was found or a match was found but was not readable
    
    MethodNotFoundException - If no matching method can be found
    
    ELException - Wraps any exception throw whilst resolving the property or coercion of the result to the expected return type fails
  - isParmetersProvided
```
public boolean isParmetersProvided()
```
    Since:
    
    EL 2.2 Note: The spelling mistake is deliberate. isParmetersProvided() - Specification definition isParametersProvided() - Corrected spelling

Class MethodExpression

Constructor Summary

Method Summary

Methods inherited from class javax.el.Expression

Methods inherited from class java.lang.Object

Constructor Detail

MethodExpression

Method Detail

getMethodInfo

invoke

isParmetersProvided