Class ValueExpression<V>

java.lang.Object

org.springframework.integration.expression.ValueExpression<V>

Type Parameters:

V - - The expected value type.

All Implemented Interfaces:

Expression

public class ValueExpression<V>
extends Object
implements Expression

A very simple hardcoded implementation of the Expression interface that represents an immutable value. It is used as value holder in the context of expression evaluation.

Since:

4.0

Author:

Artem Bilan, Gary Russell

Constructor Summary

Constructors

Constructor	Description
ValueExpression(V value)

Method Summary

Modifier and Type	Method	Description
String	getExpressionString()
V	getValue()
<T> T	getValue(Class<T> desiredResultType)
V	getValue(Object rootObject)
<T> T	getValue(Object rootObject, Class<T> desiredResultType)
V	getValue(EvaluationContext context)
<T> T	getValue(EvaluationContext context, Class<T> desiredResultType)
V	getValue(EvaluationContext context, Object rootObject)
<T> T	getValue(EvaluationContext context, Object rootObject, Class<T> desiredResultType)
Class<V>	getValueType()
Class<V>	getValueType(Object rootObject)
Class<V>	getValueType(EvaluationContext context)
Class<V>	getValueType(EvaluationContext context, Object rootObject)
TypeDescriptor	getValueTypeDescriptor()
TypeDescriptor	getValueTypeDescriptor(Object rootObject)
TypeDescriptor	getValueTypeDescriptor(EvaluationContext context)
TypeDescriptor	getValueTypeDescriptor(EvaluationContext context, Object rootObject)
boolean	isWritable(Object rootObject)
boolean	isWritable(EvaluationContext context)
boolean	isWritable(EvaluationContext context, Object rootObject)
void	setValue(Object rootObject, Object value)
void	setValue(EvaluationContext context, Object value)
void	setValue(EvaluationContext context, Object rootObject, Object value)
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

ValueExpression

public ValueExpression(V value)

Method Details

getValue

public V getValue()
           throws EvaluationException

Specified by:

getValue in interface Expression

Throws:

EvaluationException

getValue

public V getValue(Object rootObject)
           throws EvaluationException

Specified by:

getValue in interface Expression

Throws:

EvaluationException

getValue

public V getValue(EvaluationContext context)
           throws EvaluationException

Specified by:

getValue in interface Expression

Throws:

EvaluationException

getValue

public V getValue(EvaluationContext context,
 Object rootObject)
           throws EvaluationException

Specified by:

getValue in interface Expression

Throws:

EvaluationException

getValue

public <T> T getValue(Object rootObject,
 Class<T> desiredResultType)
               throws EvaluationException

Specified by:

getValue in interface Expression

Throws:

EvaluationException

getValue

public <T> T getValue(Class<T> desiredResultType)
               throws EvaluationException

Specified by:

getValue in interface Expression

Throws:

EvaluationException

getValue

public <T> T getValue(EvaluationContext context,
 Object rootObject,
 Class<T> desiredResultType)
               throws EvaluationException

Specified by:

getValue in interface Expression

Throws:

EvaluationException

getValue

public <T> T getValue(EvaluationContext context,
 Class<T> desiredResultType)
               throws EvaluationException

Specified by:

getValue in interface Expression

Throws:

EvaluationException

getValueType

public Class<V> getValueType()
                      throws EvaluationException

Specified by:

getValueType in interface Expression

Throws:

EvaluationException

getValueType

public Class<V> getValueType(Object rootObject)
                      throws EvaluationException

Specified by:

getValueType in interface Expression

Throws:

EvaluationException

getValueType

public Class<V> getValueType(EvaluationContext context)
                      throws EvaluationException

Specified by:

getValueType in interface Expression

Throws:

EvaluationException

getValueType

public Class<V> getValueType(EvaluationContext context,
 Object rootObject)
                      throws EvaluationException

Specified by:

getValueType in interface Expression

Throws:

EvaluationException

getValueTypeDescriptor

public TypeDescriptor getValueTypeDescriptor()
                                      throws EvaluationException

Specified by:

getValueTypeDescriptor in interface Expression

Throws:

EvaluationException

getValueTypeDescriptor

public TypeDescriptor getValueTypeDescriptor(Object rootObject)
                                      throws EvaluationException

Specified by:

getValueTypeDescriptor in interface Expression

Throws:

EvaluationException

getValueTypeDescriptor

public TypeDescriptor getValueTypeDescriptor(EvaluationContext context)
                                      throws EvaluationException

Specified by:

getValueTypeDescriptor in interface Expression

Throws:

EvaluationException

getValueTypeDescriptor

public TypeDescriptor getValueTypeDescriptor(EvaluationContext context,
 Object rootObject)
                                      throws EvaluationException

Specified by:

getValueTypeDescriptor in interface Expression

Throws:

EvaluationException

isWritable

public boolean isWritable(EvaluationContext context)
                   throws EvaluationException

Specified by:

isWritable in interface Expression

Throws:

EvaluationException

isWritable

public boolean isWritable(EvaluationContext context,
 Object rootObject)
                   throws EvaluationException

Specified by:

isWritable in interface Expression

Throws:

EvaluationException

isWritable

public boolean isWritable(Object rootObject)
                   throws EvaluationException

Specified by:

isWritable in interface Expression

Throws:

EvaluationException

setValue

public void setValue(EvaluationContext context,
 Object value)
              throws EvaluationException

Specified by:

setValue in interface Expression

Throws:

EvaluationException

setValue

public void setValue(Object rootObject,
 Object value)
              throws EvaluationException

Specified by:

setValue in interface Expression

Throws:

EvaluationException

setValue

public void setValue(EvaluationContext context,
 Object rootObject,
 Object value)
              throws EvaluationException

Specified by:

setValue in interface Expression

Throws:

EvaluationException

getExpressionString

public String getExpressionString()

Specified by:

getExpressionString in interface Expression

toString

public String toString()

Overrides:

toString in class Object