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(@Nullable Class<T> desiredResultType)
V	getValue(@Nullable Object rootObject)
<T> T	getValue(@Nullable Object rootObject, @Nullable Class<T> desiredResultType)
V	getValue(EvaluationContext context)
<T> T	getValue(EvaluationContext context, @Nullable Class<T> desiredResultType)
V	getValue(EvaluationContext context, @Nullable Object rootObject)
<T> T	getValue(EvaluationContext context, @Nullable Object rootObject, @Nullable Class<T> desiredResultType)
Class<V>	getValueType()
Class<V>	getValueType(@Nullable Object rootObject)
Class<V>	getValueType(EvaluationContext context)
Class<V>	getValueType(EvaluationContext context, @Nullable Object rootObject)
TypeDescriptor	getValueTypeDescriptor()
TypeDescriptor	getValueTypeDescriptor(@Nullable Object rootObject)
TypeDescriptor	getValueTypeDescriptor(EvaluationContext context)
TypeDescriptor	getValueTypeDescriptor(EvaluationContext context, @Nullable Object rootObject)
boolean	isWritable(@Nullable Object rootObject)
boolean	isWritable(EvaluationContext context)
boolean	isWritable(EvaluationContext context, @Nullable Object rootObject)
void	setValue(@Nullable Object rootObject, @Nullable Object value)
void	setValue(EvaluationContext context, @Nullable Object value)
void	setValue(EvaluationContext context, @Nullable Object rootObject, @Nullable 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(@Nullable 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,
 @Nullable Object rootObject)
           throws EvaluationException

Specified by:

getValue in interface Expression

Throws:

EvaluationException

getValue

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

Specified by:

getValue in interface Expression

Throws:

EvaluationException

getValue

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

Specified by:

getValue in interface Expression

Throws:

EvaluationException

getValue

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

Specified by:

getValue in interface Expression

Throws:

EvaluationException

getValue

public <T> T getValue(EvaluationContext context,
 @Nullable 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(@Nullable 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,
 @Nullable 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(@Nullable 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,
 @Nullable 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,
 @Nullable Object rootObject)
                   throws EvaluationException

Specified by:

isWritable in interface Expression

Throws:

EvaluationException

isWritable

public boolean isWritable(@Nullable Object rootObject)
                   throws EvaluationException

Specified by:

isWritable in interface Expression

Throws:

EvaluationException

setValue

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

Specified by:

setValue in interface Expression

Throws:

EvaluationException

setValue

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

Specified by:

setValue in interface Expression

Throws:

EvaluationException

setValue

public void setValue(EvaluationContext context,
 @Nullable Object rootObject,
 @Nullable 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