Package org.apache.el

Class MethodExpressionLiteral

java.lang.Object

javax.el.Expression

javax.el.MethodExpression

org.apache.el.MethodExpressionLiteral

All Implemented Interfaces:

Externalizable, Serializable

public class MethodExpressionLiteral
extends MethodExpression
implements Externalizable

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
MethodExpressionLiteral()
MethodExpressionLiteral(String expr, Class<?> expectedType, Class<?>[] paramTypes)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object obj)
String	getExpressionString()
MethodInfo	getMethodInfo(ELContext context)
int	hashCode()
Object	invoke(ELContext context, Object[] params)
boolean	isLiteralText()
void	readExternal(ObjectInput in)
void	writeExternal(ObjectOutput out)

Methods inherited from class javax.el.MethodExpression

isParametersProvided, isParmetersProvided

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Details

MethodExpressionLiteral

public MethodExpressionLiteral()

MethodExpressionLiteral

public MethodExpressionLiteral(String expr,
 Class<?> expectedType,
 Class<?>[] paramTypes)

Method Details

getMethodInfo

public MethodInfo getMethodInfo(ELContext context)
                         throws ELException

Specified by:

getMethodInfo in class MethodExpression

Parameters:

context - The EL context for this evaluation

Returns:

Information about the method that this expression resolves to

Throws:

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 Object invoke(ELContext context,
 Object[] params)
              throws ELException

Specified by:

invoke in class MethodExpression

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:

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

getExpressionString

public String getExpressionString()

Specified by:

getExpressionString in class Expression

equals

public boolean equals(Object obj)

Specified by:

equals in class Expression

hashCode

public int hashCode()

Specified by:

hashCode in class Expression

isLiteralText

public boolean isLiteralText()

Specified by:

isLiteralText in class Expression

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
ClassNotFoundException

Specified by:

readExternal in interface Externalizable

Throws:

IOException

ClassNotFoundException

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Throws:

IOException