de.odysseus.el.tree
Class Bindings

java.lang.Object
  de.odysseus.el.tree.Bindings

All Implemented Interfaces:

TypeConverter, java.io.Serializable

public class Bindings
extends java.lang.Object
implements TypeConverter

Bindings, usually created by a Tree.

Author:

Christoph Beck

See Also:

Serialized Form

Field Summary

Fields inherited from interface de.odysseus.el.misc.TypeConverter

DEFAULT

Constructor Summary

Bindings(java.lang.reflect.Method[] functions, ValueExpression[] variables)
Constructor.

Bindings(java.lang.reflect.Method[] functions, ValueExpression[] variables, TypeConverter converter)
Constructor.

Method Summary

<T> T	convert(java.lang.Object value, java.lang.Class<T> type) Apply type conversion.
boolean	equals(java.lang.Object obj)
java.lang.reflect.Method	getFunction(int index) Get function by index.
ValueExpression	getVariable(int index) Get variable by index.
int	hashCode()
boolean	isFunctionBound(int index) Test if given index is bound to a function.
boolean	isVariableBound(int index) Test if given index is bound to a variable.

Methods inherited from class java.lang.Object

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

Constructor Detail

Bindings

public Bindings(java.lang.reflect.Method[] functions,
                ValueExpression[] variables)

Constructor.

Bindings

public Bindings(java.lang.reflect.Method[] functions,
                ValueExpression[] variables,
                TypeConverter converter)

Constructor.

Method Detail

getFunction

public java.lang.reflect.Method getFunction(int index)

Get function by index.

Parameters:

index - function index

Returns:

method

isFunctionBound

public boolean isFunctionBound(int index)

Test if given index is bound to a function. This method performs an index check.

Parameters:

index - identifier index

Returns:

true if the given index is bound to a function

getVariable

public ValueExpression getVariable(int index)

Get variable by index.

Parameters:

index - identifier index

Returns:

value expression

isVariableBound

public boolean isVariableBound(int index)

Test if given index is bound to a variable. This method performs an index check.

Parameters:

index - identifier index

Returns:

true if the given index is bound to a variable

convert

public <T> T convert(java.lang.Object value,
                     java.lang.Class<T> type)

Apply type conversion.

Specified by:

convert in interface TypeConverter

Parameters:

value - value to convert

type - target type

Returns:

converted value

Throws:

ELException

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object