Package org.springframework.integration.selector

Class MessageSelectorChain

java.lang.Object

org.springframework.integration.selector.MessageSelectorChain

All Implemented Interfaces:

GenericSelector<Message<?>>, MessageSelector

public class MessageSelectorChain
extends Object
implements MessageSelector

A message selector implementation that passes incoming messages through a chain of selectors. Whether the Message is accepted is based upon the tallied results of the individual selectors' responses in accordance with this chain's MessageSelectorChain.VotingStrategy.

Author:

Mark Fisher, Gary Russell

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	MessageSelectorChain.VotingStrategy

Constructor Summary

Constructors

Constructor	Description
MessageSelectorChain()

Method Summary

Modifier and Type	Method	Description
boolean	accept(Message<?> message)	Pass the message through the selector chain.
void	add(int index, MessageSelector selector)	Add a selector to the chain at the specified index.
void	add(MessageSelector selector)	Add a selector to the end of the chain.
void	setSelectors(List<MessageSelector> selectors)	Initialize the selector chain.
void	setVotingStrategy(MessageSelectorChain.VotingStrategy votingStrategy)	Specify the voting strategy for this selector chain.

Methods inherited from class java.lang.Object

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

Constructor Details

MessageSelectorChain

public MessageSelectorChain()

Method Details

setVotingStrategy

public void setVotingStrategy(MessageSelectorChain.VotingStrategy votingStrategy)

Specify the voting strategy for this selector chain.

The default is MessageSelectorChain.VotingStrategy.ALL.

Parameters:

votingStrategy - The voting strategy.

add

public void add(MessageSelector selector)

Add a selector to the end of the chain.

Parameters:

selector - The message selector.

add

public void add(int index, MessageSelector selector)

Add a selector to the chain at the specified index.

Parameters:

index - The index.

selector - The message selector.

setSelectors

public void setSelectors(List<MessageSelector> selectors)

Initialize the selector chain. Removes any existing selectors.

Parameters:

selectors - The message selectors.

accept

public final boolean accept(Message<?> message)

Pass the message through the selector chain. Whether the Message is accepted is based upon the tallied results of the individual selectors' responses in accordance with this chain's MessageSelectorChain.VotingStrategy.

Specified by:

accept in interface GenericSelector<Message<?>>

Specified by:

accept in interface MessageSelector