org.springframework.integration.aop

Class MethodAnnotationPublisherMetadataSource

java.lang.Object

org.springframework.integration.aop.MethodAnnotationPublisherMetadataSource

public class MethodAnnotationPublisherMetadataSource
extends Object

An PublisherMetadataSource implementation that retrieves the channel name and expression strings from an annotation.

Since:

2.0

Author:

Mark Fisher, Artem Bilan, Gareth Chapman, Cameron Mayfield, Chengchen Ji, Gary Russell

Field Summary

Fields

Modifier and Type	Field and Description
static String	ARGUMENT_MAP_VARIABLE_NAME
static String	EXCEPTION_VARIABLE_NAME
static ExpressionParser	EXPRESSION_PARSER
static String	METHOD_NAME_VARIABLE_NAME
static Expression	RETURN_VALUE_EXPRESSION
static String	RETURN_VALUE_VARIABLE_NAME

Constructor Summary

Constructors

Constructor and Description
MethodAnnotationPublisherMetadataSource()
MethodAnnotationPublisherMetadataSource(Set<Class<? extends Annotation>> annotationTypes)

Method Summary

Modifier and Type	Method and Description
String	getChannelName(Method method) Returns the channel name to which Messages should be published for this particular method invocation.
Expression	getExpressionForPayload(Method method) Returns the SpEL expression to be evaluated for creating the Message payload.
Map<String,Expression>	getExpressionsForHeaders(Method method) Returns the map of expression strings to be evaluated for any headers that should be set on the published Message.
void	setChannelAttributeName(String channelAttributeName)

Methods inherited from class java.lang.Object

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

Field Detail

METHOD_NAME_VARIABLE_NAME

public static final String METHOD_NAME_VARIABLE_NAME

See Also:

Constant Field Values

ARGUMENT_MAP_VARIABLE_NAME

public static final String ARGUMENT_MAP_VARIABLE_NAME

See Also:

Constant Field Values

RETURN_VALUE_VARIABLE_NAME

public static final String RETURN_VALUE_VARIABLE_NAME

See Also:

Constant Field Values

EXCEPTION_VARIABLE_NAME

public static final String EXCEPTION_VARIABLE_NAME

See Also:

Constant Field Values

EXPRESSION_PARSER

public static final ExpressionParser EXPRESSION_PARSER

RETURN_VALUE_EXPRESSION

public static final Expression RETURN_VALUE_EXPRESSION

Constructor Detail

MethodAnnotationPublisherMetadataSource

public MethodAnnotationPublisherMetadataSource()

MethodAnnotationPublisherMetadataSource

public MethodAnnotationPublisherMetadataSource(Set<Class<? extends Annotation>> annotationTypes)

Method Detail

setChannelAttributeName

public void setChannelAttributeName(String channelAttributeName)

getChannelName

public String getChannelName(Method method)

Returns the channel name to which Messages should be published for this particular method invocation.

Parameters:

method - The Method.

Returns:

The channel name.

getExpressionForPayload

public Expression getExpressionForPayload(Method method)

Returns the SpEL expression to be evaluated for creating the Message payload.

Parameters:

method - the Method.

Returns:

rhe payload expression.

getExpressionsForHeaders

public Map<String,Expression> getExpressionsForHeaders(Method method)

Returns the map of expression strings to be evaluated for any headers that should be set on the published Message. The keys in the Map are header names, the values are the expression strings.

Parameters:

method - The Method.

Returns:

The header expressions.