java.lang.Object
- org.springframework.jms.support.converter.SimpleMessageConverter

All Implemented Interfaces:
MessageConverter
```
public class SimpleMessageConverter
extends Object
implements MessageConverter
```
A simple message converter which is able to handle TextMessages, BytesMessages, MapMessages, and ObjectMessages. Used as default conversion strategy by JmsTemplate, for convertAndSend and receiveAndConvert operations.
Converts a String to a TextMessage, a byte array to a BytesMessage, a Map to a MapMessage, and a Serializable object to a ObjectMessage (or vice versa).
Since:
1.1
Author:
Juergen Hoeller
See Also:
JmsTemplate.convertAndSend(java.lang.Object), JmsTemplate.receiveAndConvert()

Constructor Summary
Constructors
Constructor Description
SimpleMessageConverter()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected BytesMessage`	`createMessageForByteArray(byte[] bytes, Session session)`	Create a JMS BytesMessage for the given byte array.
`protected MapMessage`	`createMessageForMap(Map<?,?> map, Session session)`	Create a JMS MapMessage for the given Map.
`protected ObjectMessage`	`createMessageForSerializable(Serializable object, Session session)`	Create a JMS ObjectMessage for the given Serializable object.
`protected TextMessage`	`createMessageForString(String text, Session session)`	Create a JMS TextMessage for the given String.
`protected byte[]`	`extractByteArrayFromMessage(BytesMessage message)`	Extract a byte array from the given `BytesMessage`.
`protected Map<String,Object>`	`extractMapFromMessage(MapMessage message)`	Extract a Map from the given `MapMessage`.
`protected Serializable`	`extractSerializableFromMessage(ObjectMessage message)`	Extract a Serializable object from the given `ObjectMessage`.
`protected String`	`extractStringFromMessage(TextMessage message)`	Extract a String from the given TextMessage.
`Object`	`fromMessage(Message message)`	This implementation converts a TextMessage back to a String, a ByteMessage back to a byte array, a MapMessage back to a Map, and an ObjectMessage back to a Serializable object.
`Message`	`toMessage(Object object, Session session)`	This implementation creates a TextMessage for a String, a BytesMessage for a byte array, a MapMessage for a Map, and an ObjectMessage for a Serializable object.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - SimpleMessageConverter
```
public SimpleMessageConverter()
```
- Method Detail
  - toMessage
```
public Message toMessage(Object object,
                         Session session)
                  throws JMSException,
                         MessageConversionException
```
    This implementation creates a TextMessage for a String, a BytesMessage for a byte array, a MapMessage for a Map, and an ObjectMessage for a Serializable object.
    Specified by:
    toMessage in interface MessageConverter
    Parameters:
    object - the object to convert
    session - the Session to use for creating a JMS Message
    Returns:
    the JMS Message
    Throws:
    JMSException - if thrown by JMS API methods
    MessageConversionException - in case of conversion failure
    See Also:
    createMessageForString(java.lang.String, javax.jms.Session), createMessageForByteArray(byte[], javax.jms.Session), createMessageForMap(java.util.Map<?, ?>, javax.jms.Session), createMessageForSerializable(java.io.Serializable, javax.jms.Session)
  - fromMessage
```
public Object fromMessage(Message message)
                   throws JMSException,
                          MessageConversionException
```
    This implementation converts a TextMessage back to a String, a ByteMessage back to a byte array, a MapMessage back to a Map, and an ObjectMessage back to a Serializable object. Returns the plain Message object in case of an unknown message type.
    Specified by:
    fromMessage in interface MessageConverter
    Parameters:
    message - the message to convert
    Returns:
    the converted Java object
    Throws:
    JMSException - if thrown by JMS API methods
    MessageConversionException - in case of conversion failure
    See Also:
    extractStringFromMessage(javax.jms.TextMessage), extractByteArrayFromMessage(javax.jms.BytesMessage), extractMapFromMessage(javax.jms.MapMessage), extractSerializableFromMessage(javax.jms.ObjectMessage)
  - createMessageForString
```
protected TextMessage createMessageForString(String text,
                                             Session session)
                                      throws JMSException
```
    Create a JMS TextMessage for the given String.
    Parameters:
    text - the String to convert
    session - current JMS session
    Returns:
    the resulting message
    Throws:
    JMSException - if thrown by JMS methods
    See Also:
    Session.createTextMessage()
  - createMessageForByteArray
```
protected BytesMessage createMessageForByteArray(byte[] bytes,
                                                 Session session)
                                          throws JMSException
```
    Create a JMS BytesMessage for the given byte array.
    Parameters:
    bytes - the byyte array to convert
    session - current JMS session
    Returns:
    the resulting message
    Throws:
    JMSException - if thrown by JMS methods
    See Also:
    Session.createBytesMessage()
  - createMessageForMap
```
protected MapMessage createMessageForMap(Map<?,?> map,
                                         Session session)
                                  throws JMSException
```
    Create a JMS MapMessage for the given Map.
    Parameters:
    map - the Map to convert
    session - current JMS session
    Returns:
    the resulting message
    Throws:
    JMSException - if thrown by JMS methods
    See Also:
    Session.createMapMessage()
  - createMessageForSerializable
```
protected ObjectMessage createMessageForSerializable(Serializable object,
                                                     Session session)
                                              throws JMSException
```
    Create a JMS ObjectMessage for the given Serializable object.
    Parameters:
    object - the Serializable object to convert
    session - current JMS session
    Returns:
    the resulting message
    Throws:
    JMSException - if thrown by JMS methods
    See Also:
    Session.createObjectMessage()
  - extractStringFromMessage
```
protected String extractStringFromMessage(TextMessage message)
                                   throws JMSException
```
    Extract a String from the given TextMessage.
    Parameters:
    message - the message to convert
    Returns:
    the resulting String
    Throws:
    JMSException - if thrown by JMS methods
  - extractByteArrayFromMessage
```
protected byte[] extractByteArrayFromMessage(BytesMessage message)
                                      throws JMSException
```
    Extract a byte array from the given BytesMessage.
    Parameters:
    message - the message to convert
    Returns:
    the resulting byte array
    Throws:
    JMSException - if thrown by JMS methods
  - extractMapFromMessage
```
protected Map<String,Object> extractMapFromMessage(MapMessage message)
                                                  throws JMSException
```
    Extract a Map from the given MapMessage.
    Parameters:
    message - the message to convert
    Returns:
    the resulting Map
    Throws:
    JMSException - if thrown by JMS methods
  - extractSerializableFromMessage
```
protected Serializable extractSerializableFromMessage(ObjectMessage message)
                                               throws JMSException
```
    Extract a Serializable object from the given ObjectMessage.
    Parameters:
    message - the message to convert
    Returns:
    the resulting Serializable object
    Throws:
    JMSException - if thrown by JMS methods

Class SimpleMessageConverter

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

SimpleMessageConverter

Method Detail

toMessage

fromMessage

createMessageForString

createMessageForByteArray

createMessageForMap

createMessageForSerializable

extractStringFromMessage

extractByteArrayFromMessage

extractMapFromMessage

extractSerializableFromMessage