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Java Source Code / Java Documentation » J2EE » spring framework 2.5 » org.springframework.transaction.support 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.springframework.transaction.support.DefaultTransactionDefinition
      org.springframework.transaction.support.TransactionTemplate

TransactionTemplate
public class TransactionTemplate extends DefaultTransactionDefinition implements TransactionOperations,InitializingBean(Code)
Template class that simplifies programmatic transaction demarcation and transaction exception handling.

The central method is TransactionTemplate.execute , supporting transactional code that implements the TransactionCallback interface. This template handles the transaction lifecycle and possible exceptions such that neither the TransactionCallback implementation nor the calling code needs to explicitly handle transactions.

Typical usage: Allows for writing low-level data access objects that use resources such as JDBC DataSources but are not transaction-aware themselves. Instead, they can implicitly participate in transactions handled by higher-level application services utilizing this class, making calls to the low-level services via an inner-class callback object.

Can be used within a service implementation via direct instantiation with a transaction manager reference, or get prepared in an application context and passed to services as bean reference. Note: The transaction manager should always be configured as bean in the application context: in the first case given to the service directly, in the second case given to the prepared template.

Supports setting the propagation behavior and the isolation level by name, for convenient configuration in context definitions.
author:
   Juergen Hoeller
since:
   17.03.2003
See Also:   TransactionTemplate.execute
See Also:   TransactionTemplate.setTransactionManager
See Also:   org.springframework.transaction.PlatformTransactionManager



Field Summary
final protected  Loglogger
    

Constructor Summary
public  TransactionTemplate()
     Construct a new TransactionTemplate for bean usage.
public  TransactionTemplate(PlatformTransactionManager transactionManager)
     Construct a new TransactionTemplate using the given transaction manager.
public  TransactionTemplate(PlatformTransactionManager transactionManager, TransactionDefinition transactionDefinition)
     Construct a new TransactionTemplate using the given transaction manager, taking its default settings from the given transaction definition.
Parameters:
  transactionManager - the transaction management strategy to be used
Parameters:
  transactionDefinition - the transaction definition to copy thedefault settings from.

Method Summary
public  voidafterPropertiesSet()
    
public  Objectexecute(TransactionCallback action)
    
public  PlatformTransactionManagergetTransactionManager()
     Return the transaction management strategy to be used.
public  voidsetTransactionManager(PlatformTransactionManager transactionManager)
     Set the transaction management strategy to be used.

Field Detail
logger
final protected Log logger(Code)
Logger available to subclasses




Constructor Detail
TransactionTemplate
public TransactionTemplate()(Code)
Construct a new TransactionTemplate for bean usage.

Note: The PlatformTransactionManager needs to be set before any execute calls.
See Also:   TransactionTemplate.setTransactionManager




TransactionTemplate
public TransactionTemplate(PlatformTransactionManager transactionManager)(Code)
Construct a new TransactionTemplate using the given transaction manager.
Parameters:
  transactionManager - the transaction management strategy to be used



TransactionTemplate
public TransactionTemplate(PlatformTransactionManager transactionManager, TransactionDefinition transactionDefinition)(Code)
Construct a new TransactionTemplate using the given transaction manager, taking its default settings from the given transaction definition.
Parameters:
  transactionManager - the transaction management strategy to be used
Parameters:
  transactionDefinition - the transaction definition to copy thedefault settings from. Local properties can still be set to change values.




Method Detail
afterPropertiesSet
public void afterPropertiesSet()(Code)



execute
public Object execute(TransactionCallback action) throws TransactionException(Code)



getTransactionManager
public PlatformTransactionManager getTransactionManager()(Code)
Return the transaction management strategy to be used.



setTransactionManager
public void setTransactionManager(PlatformTransactionManager transactionManager)(Code)
Set the transaction management strategy to be used.



Fields inherited from org.springframework.transaction.support.DefaultTransactionDefinition
final public static String PREFIX_ISOLATION(Code)(Java Doc)
final public static String PREFIX_PROPAGATION(Code)(Java Doc)
final public static String PREFIX_TIMEOUT(Code)(Java Doc)
final public static String READ_ONLY_MARKER(Code)(Java Doc)

Methods inherited from org.springframework.transaction.support.DefaultTransactionDefinition
public boolean equals(Object other)(Code)(Java Doc)
final protected StringBuffer getDefinitionDescription()(Code)(Java Doc)
final public int getIsolationLevel()(Code)(Java Doc)
final public String getName()(Code)(Java Doc)
final public int getPropagationBehavior()(Code)(Java Doc)
final public int getTimeout()(Code)(Java Doc)
public int hashCode()(Code)(Java Doc)
final public boolean isReadOnly()(Code)(Java Doc)
final public void setIsolationLevel(int isolationLevel)(Code)(Java Doc)
final public void setIsolationLevelName(String constantName) throws IllegalArgumentException(Code)(Java Doc)
final public void setName(String name)(Code)(Java Doc)
final public void setPropagationBehavior(int propagationBehavior)(Code)(Java Doc)
final public void setPropagationBehaviorName(String constantName) throws IllegalArgumentException(Code)(Java Doc)
final public void setReadOnly(boolean readOnly)(Code)(Java Doc)
final public void setTimeout(int timeout)(Code)(Java Doc)
public String toString()(Code)(Java Doc)

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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