Class ValueExpression<V>

java.lang.Object

org.springframework.amqp.rabbit.support.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:

1.4

Author:

Artem Bilan

Constructor Summary

Constructors

Constructor	Description
ValueExpression(@Nullable V value)

Method Summary

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

Methods inherited from class java.lang.Object

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

Constructor Details

ValueExpression

public ValueExpression(@Nullable V value)

Method Details

getValue

public @Nullable V getValue()
                     throws EvaluationException

Specified by:

getValue in interface Expression

Throws:

EvaluationException

getValue

public @Nullable V getValue(@Nullable Object rootObject)
                     throws EvaluationException

Specified by:

getValue in interface Expression

Throws:

EvaluationException

getValue

public @Nullable V getValue(EvaluationContext context)
                     throws EvaluationException

Specified by:

getValue in interface Expression

Throws:

EvaluationException

getValue

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

Specified by:

getValue in interface Expression

Throws:

EvaluationException

getValue

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

Specified by:

getValue in interface Expression

Throws:

EvaluationException

getValue

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

Specified by:

getValue in interface Expression

Throws:

EvaluationException

getValue

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

Specified by:

getValue in interface Expression

Throws:

EvaluationException

getValue

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

Specified by:

getValue in interface Expression

Throws:

EvaluationException

getValueType

public @Nullable Class<V> getValueType()
                                throws EvaluationException

Specified by:

getValueType in interface Expression

Throws:

EvaluationException

getValueType

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

Specified by:

getValueType in interface Expression

Throws:

EvaluationException

getValueType

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

Specified by:

getValueType in interface Expression

Throws:

EvaluationException

getValueType

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

Specified by:

getValueType in interface Expression

Throws:

EvaluationException

getValueTypeDescriptor

public @Nullable TypeDescriptor getValueTypeDescriptor()
                                                throws EvaluationException

Specified by:

getValueTypeDescriptor in interface Expression

Throws:

EvaluationException

getValueTypeDescriptor

public @Nullable TypeDescriptor getValueTypeDescriptor(@Nullable Object rootObject)
                                                throws EvaluationException

Specified by:

getValueTypeDescriptor in interface Expression

Throws:

EvaluationException

getValueTypeDescriptor

public @Nullable TypeDescriptor getValueTypeDescriptor(EvaluationContext context)
                                                throws EvaluationException

Specified by:

getValueTypeDescriptor in interface Expression

Throws:

EvaluationException

getValueTypeDescriptor

public @Nullable 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(@Nullable 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