org.mule

Class DefaultMessageCollection

java.lang.Object

org.mule.DefaultMuleMessage

org.mule.DefaultMessageCollection

All Implemented Interfaces:

Serializable, MuleMessage, MuleMessageCollection, ThreadSafeAccess, MessageAdapter

public class DefaultMessageCollection
extends DefaultMuleMessage
implements MuleMessageCollection

A MuleMessage type that manages a collection of MuleMessage Objects. Typically this type of message is only used when users explicitly want to work with aggregated or re-sequenced collections of messages. Note that the DefaultMuleMessage.getPayload() for this message will return a List of payload objects for each of the Mule messages stored in this collection. Calling getPayload(Class) will attempt to transform all payloads and return a List. The methods DefaultMuleMessage.getPayloadAsString() and getPayloadAsBytes() are unsupported, instead users should call getPayload(Class) and pass in the return type byte[].class or String.class.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface org.mule.api.ThreadSafeAccess

ThreadSafeAccess.AccessControl

Field Summary

Fields inherited from interface org.mule.api.ThreadSafeAccess

READ, WRITE

Constructor Summary

Constructors

Constructor and Description
DefaultMessageCollection()
DefaultMessageCollection(DefaultMessageCollection msg) Performs a shallow copy

Method Summary

Methods

Modifier and Type	Method and Description
void	addMessage(MuleMessage message)
void	addMessage(MuleMessage message, int index)
void	addMessages(List messages)
void	addMessages(MuleEvent[] events)
void	addMessages(MuleMessage[] messages)
MuleMessage	getMessage(int index)
protected List	getMessageList()
MuleMessage[]	getMessagesAsArray()
Object	getPayload(Class outputType) Applies the getPayload(Class) call to every message in the collection and returns a List of results.
byte[]	getPayloadAsBytes() Converts the message implementation into a byte array representation
String	getPayloadAsString(String encoding) Converts the message implementation into a String representation
protected List	getPayloadList()
Object[]	getPayloadsAsArray()
ThreadSafeAccess	newThreadCopy() We need to overload this if we find we want to make this class available to users, but the copy will be expensive;
void	removedMessage(MuleMessage message)
int	size()

Methods inherited from class org.mule.DefaultMuleMessage

addAttachment, addProperties, addProperties, applyAllTransformers, applyTransformers, applyTransformers, assertAccess, clearProperties, getAdapter, getAttachment, getAttachmentNames, getBooleanProperty, getCorrelationGroupSize, getCorrelationId, getCorrelationSequence, getDoubleProperty, getEncoding, getExceptionPayload, getIntProperty, getLongProperty, getOrginalPayload, getOriginalAdapter, getPayload, getPayload, getPayloadAsString, getProperty, getProperty, getPropertyNames, getReplyTo, getStringProperty, getUniqueId, isPayloadConsumed, release, removeAttachment, removeProperty, resetAccessControl, setBooleanProperty, setCorrelationGroupSize, setCorrelationId, setCorrelationSequence, setDoubleProperty, setEncoding, setExceptionPayload, setIntProperty, setLongProperty, setPayload, setProperty, setProperty, setReplyTo, setStringProperty, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.mule.api.MuleMessage

applyTransformers, applyTransformers, getAdapter, getOrginalPayload, getOriginalAdapter, getPayloadAsString, setPayload

Methods inherited from interface org.mule.api.transport.MessageAdapter

addAttachment, addProperties, addProperties, clearProperties, getAttachment, getAttachmentNames, getBooleanProperty, getCorrelationGroupSize, getCorrelationId, getCorrelationSequence, getDoubleProperty, getEncoding, getExceptionPayload, getIntProperty, getLongProperty, getPayload, getProperty, getProperty, getPropertyNames, getReplyTo, getStringProperty, getUniqueId, release, removeAttachment, removeProperty, setBooleanProperty, setCorrelationGroupSize, setCorrelationId, setCorrelationSequence, setDoubleProperty, setEncoding, setExceptionPayload, setIntProperty, setLongProperty, setProperty, setProperty, setReplyTo, setStringProperty

Constructor Detail

DefaultMessageCollection

public DefaultMessageCollection()

DefaultMessageCollection

public DefaultMessageCollection(DefaultMessageCollection msg)

Performs a shallow copy

Parameters:

msg -

Method Detail

addMessage

public void addMessage(MuleMessage message)

Specified by:

addMessage in interface MuleMessageCollection

getMessagesAsArray

public MuleMessage[] getMessagesAsArray()

Specified by:

getMessagesAsArray in interface MuleMessageCollection

getPayloadsAsArray

public Object[] getPayloadsAsArray()

Specified by:

getPayloadsAsArray in interface MuleMessageCollection

removedMessage

public void removedMessage(MuleMessage message)

Specified by:

removedMessage in interface MuleMessageCollection

addMessage

public void addMessage(MuleMessage message,
              int index)

Specified by:

addMessage in interface MuleMessageCollection

addMessages

public void addMessages(MuleEvent[] events)

Specified by:

addMessages in interface MuleMessageCollection

addMessages

public void addMessages(List messages)

Specified by:

addMessages in interface MuleMessageCollection

addMessages

public void addMessages(MuleMessage[] messages)

Specified by:

addMessages in interface MuleMessageCollection

getMessage

public MuleMessage getMessage(int index)

Specified by:

getMessage in interface MuleMessageCollection

getMessageList

protected List getMessageList()

getPayloadList

protected List getPayloadList()

getPayload

public Object getPayload(Class outputType)
                  throws TransformerException

Applies the getPayload(Class) call to every message in the collection and returns a List of results. Will attempt to obtain the payload of this message with the desired Class type. This will try and resolve a trnsformr that can do this transformation. If a transformer cannot be found an exception is thrown. Any transfromers added to the reqgistry will be checked for compatability

Specified by:

getPayload in interface MuleMessage

Overrides:

getPayload in class DefaultMuleMessage

Parameters:

outputType - the desired return type

Returns:

The converted payload of this message. Note that this method will not alter the payload of this message *unless* the payload is an inputstream in which case the stream will be read and the payload will become the fully read stream.

Throws:

TransformerException - if a transformer cannot be found or there is an error during transformation of the payload

size

public int size()

Specified by:

size in interface MuleMessageCollection

getPayloadAsBytes

public byte[] getPayloadAsBytes()
                         throws Exception

Converts the message implementation into a byte array representation

Specified by:

getPayloadAsBytes in interface MuleMessage

Overrides:

getPayloadAsBytes in class DefaultMuleMessage

Returns:

byte array of the message

Throws:

Exception - Implemetation may throw an endpoint specific exception

getPayloadAsString

public String getPayloadAsString(String encoding)
                          throws Exception

Converts the message implementation into a String representation

Specified by:

getPayloadAsString in interface MuleMessage

Overrides:

getPayloadAsString in class DefaultMuleMessage

Parameters:

encoding - The encoding to use when transforming the message (if necessary). The parameter is used when converting from a byte array

Returns:

String representation of the message payload

Throws:

Exception - Implementation may throw an endpoint specific exception

newThreadCopy

public ThreadSafeAccess newThreadCopy()

We need to overload this if we find we want to make this class available to users, but the copy will be expensive;

Specified by:

newThreadCopy in interface ThreadSafeAccess

Overrides:

newThreadCopy in class DefaultMuleMessage

Returns: