Package javax.servlet.jsp.jstl.core

Class IndexedValueExpression

java.lang.Object

javax.el.Expression

javax.el.ValueExpression

javax.servlet.jsp.jstl.core.IndexedValueExpression

All Implemented Interfaces:

Serializable

public final class IndexedValueExpression
extends ValueExpression
implements Serializable

ValueExpression that refers to a specific member of an indexed variable. This allows individual members of an indexed collection to be used as lvalues.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
IndexedValueExpression(ValueExpression valueExpression, int i)	Constructor specifying indexed variable and index.

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)
Class	getExpectedType()
String	getExpressionString()
Class	getType(ELContext elContext)
Object	getValue(ELContext elContext)
int	hashCode()
boolean	isLiteralText()
boolean	isReadOnly(ELContext elContext)
void	setValue(ELContext elContext, Object arg1)

Methods inherited from class javax.el.ValueExpression

getValueReference

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

IndexedValueExpression

public IndexedValueExpression(ValueExpression valueExpression,
                              int i)

Constructor specifying indexed variable and index.

Parameters:

valueExpression - that evaluates to the indexed variable

i - index specifying the member

Method Detail

equals

public boolean equals(Object o)

Specified by:

equals in class Expression

getExpectedType

public Class getExpectedType()

Specified by:

getExpectedType in class ValueExpression

getExpressionString

public String getExpressionString()

Specified by:

getExpressionString in class Expression

getType

public Class getType(ELContext elContext)

Specified by:

getType in class ValueExpression

Parameters:

elContext - The EL context for this evaluation

Returns:

The type of the result of this value expression

getValue

public Object getValue(ELContext elContext)

Specified by:

getValue in class ValueExpression

Parameters:

elContext - The EL context for this evaluation

Returns:

The result of evaluating this value expression

hashCode

public int hashCode()

Specified by:

hashCode in class Expression

isLiteralText

public boolean isLiteralText()

Specified by:

isLiteralText in class Expression

isReadOnly

public boolean isReadOnly(ELContext elContext)

Specified by:

isReadOnly in class ValueExpression

Parameters:

elContext - The EL context for this evaluation

Returns:

true if this expression is read only otherwise false

setValue

public void setValue(ELContext elContext,
                     Object arg1)

Specified by:

setValue in class ValueExpression

Parameters:

elContext - The EL context for this evaluation

arg1 - The value to set the property to which this value expression refers