net.sf.hajdbc.distributable

Class QueryInitialStateCommand

java.lang.Object

net.sf.hajdbc.distributable.QueryInitialStateCommand

All Implemented Interfaces:

java.io.Serializable, Command<java.util.Set<java.lang.String>>

public class QueryInitialStateCommand
extends java.lang.Object
implements Command<java.util.Set<java.lang.String>>

Author:

Paul Ferraro

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
QueryInitialStateCommand()

Method Summary

Modifier and Type	Method and Description
<D> java.util.Set<java.lang.String>	execute(DatabaseCluster<D> databaseCluster, StateManager stateManager) Execute this command on the specified database cluster.
java.lang.Object	marshalResult(java.util.Set<java.lang.String> set) Optimize transfer of result by marshalling set of strings into a string.
java.lang.String	toString()
java.util.Set<java.lang.String>	unmarshalResult(java.lang.Object object) Restore marshalled string into a set of strings

Methods inherited from class java.lang.Object

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

Constructor Detail

QueryInitialStateCommand

public QueryInitialStateCommand()

Method Detail

execute

public <D> java.util.Set<java.lang.String> execute(DatabaseCluster<D> databaseCluster,
                                                   StateManager stateManager)

Description copied from interface: Command

Execute this command on the specified database cluster.

Specified by:

execute in interface Command<java.util.Set<java.lang.String>>

Type Parameters:

D - either java.sql.Driver or javax.sql.DataSource

Parameters:

databaseCluster - a database cluster

stateManager - a state manager

See Also:

Command.execute(net.sf.hajdbc.DatabaseCluster, net.sf.hajdbc.StateManager)

marshalResult

public java.lang.Object marshalResult(java.util.Set<java.lang.String> set)

Optimize transfer of result by marshalling set of strings into a string.

Specified by:

marshalResult in interface Command<java.util.Set<java.lang.String>>

See Also:

Command.marshalResult(java.lang.Object)

unmarshalResult

public java.util.Set<java.lang.String> unmarshalResult(java.lang.Object object)

Restore marshalled string into a set of strings

Specified by:

unmarshalResult in interface Command<java.util.Set<java.lang.String>>

See Also:

Command.unmarshalResult(java.lang.Object)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

See Also:

Object.toString()