com.cloudant.sync.sqlite

Class SQLQueueCallable<T>

java.lang.Object

com.cloudant.sync.sqlite.SQLQueueCallable<T>

All Implemented Interfaces:

java.util.concurrent.Callable<T>

Direct Known Subclasses:

GetAllDocumentIdsCallable, GetPossibleAncestorRevisionIdsCallable

public abstract class SQLQueueCallable<T>
extends java.lang.Object
implements java.util.concurrent.Callable<T>

A task which performs actions on a SQLDatabase passed in when called.

Constructor Summary

Constructors

Constructor and Description
SQLQueueCallable()

Method Summary

Modifier and Type	Method and Description
T	call()
abstract T	call(SQLDatabase db) Called either within a transaction or not depending on if SQLDatabaseQueue.submitTransaction(SQLQueueCallable) or SQLDatabaseQueue.submit(SQLQueueCallable) is called When called within a transaction, to mark the transaction as successful simply return from this method, to cause a rollback throw an exception

Methods inherited from class java.lang.Object

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

Constructor Detail

SQLQueueCallable

public SQLQueueCallable()

Method Detail

call

public final T call()
             throws java.lang.Exception

Specified by:

call in interface java.util.concurrent.Callable<T>

Throws:

java.lang.Exception

call

public abstract T call(SQLDatabase db)
                throws java.lang.Exception

Called either within a transaction or not depending on if SQLDatabaseQueue.submitTransaction(SQLQueueCallable) or SQLDatabaseQueue.submit(SQLQueueCallable) is called When called within a transaction, to mark the transaction as successful simply return from this method, to cause a rollback throw an exception

Parameters:

db - The SQLDatabase for this transaction

Returns:

The tasks result

Throws:

java.lang.Exception - If an error occurred and a rollback is needed