Package com.yahoo.transaction

Class AbstractTransaction

java.lang.Object

com.yahoo.transaction.AbstractTransaction

All Implemented Interfaces:

Transaction, java.lang.AutoCloseable

public abstract class AbstractTransaction
extends java.lang.Object
implements Transaction

A convenience base transaction class for multi-operation transactions which maintains the ordered list of operations to commit and provides a default implementation of rollbackOrLog which logs a SEVERE message.

Author:

bratseth

Nested Class Summary

Nested classes/interfaces inherited from interface com.yahoo.transaction.Transaction

Transaction.Operation

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractTransaction()

Method Summary

Modifier and Type	Method	Description
Transaction	add(Transaction.Operation operation)	Adds an operation to this transaction.
Transaction	add(java.util.List<Transaction.Operation> operations)	Adds multiple operations to this transaction.
void	close()	Default implementation which only clears operations
java.util.List<Transaction.Operation>	operations()	Returns the operations of this.
void	rollbackOrLog()	Default implementations which logs a severe message.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.yahoo.transaction.Transaction

commit, prepare

Constructor Detail

AbstractTransaction

protected AbstractTransaction()

Method Detail

add

public Transaction add(Transaction.Operation operation)

Description copied from interface: Transaction

Adds an operation to this transaction. Return self for chaining.

Specified by:

add in interface Transaction

Parameters:

operation - Transaction.Operation to append

Returns:

self, for chaining

add

public Transaction add(java.util.List<Transaction.Operation> operations)

Description copied from interface: Transaction

Adds multiple operations to this transaction. Return self for chaining.

Specified by:

add in interface Transaction

Parameters:

operations - Transaction.Operation to append

Returns:

self, for chaining

operations

public java.util.List<Transaction.Operation> operations()

Description copied from interface: Transaction

Returns the operations of this. Ownership of the returned list is transferred to the caller. The ist may be ready only.

Specified by:

operations in interface Transaction

rollbackOrLog

public void rollbackOrLog()

Default implementations which logs a severe message. Operations should implement toString to use this.

Specified by:

rollbackOrLog in interface Transaction

close

public void close()

Default implementation which only clears operations

Specified by:

close in interface java.lang.AutoCloseable

Specified by:

close in interface Transaction