org.apache.jackrabbit.mongomk.impl.command

Class NodeExistsCommand

java.lang.Object

org.apache.jackrabbit.mongomk.impl.command.BaseCommand<Boolean>

org.apache.jackrabbit.mongomk.impl.command.NodeExistsCommand

All Implemented Interfaces:

Command<Boolean>

public class NodeExistsCommand
extends BaseCommand<Boolean>

Command for MongoMicroKernel#nodeExists(String, String)

Field Summary

Fields inherited from class org.apache.jackrabbit.mongomk.impl.command.BaseCommand

nodeStore

Constructor Summary

Constructors

Constructor and Description
NodeExistsCommand(MongoNodeStore nodeStore, String path, Long revisionId) Constructs a new NodeExistsCommandMongo.

Method Summary

Methods

Modifier and Type	Method and Description
Boolean	execute() Executes the Command and returns its result.
MongoNode	getNode() After NodeExistsCommand executed, this method can be used to access the node with the path.
void	setBranchId(String branchId) Sets the branchId for the command.

Methods inherited from class org.apache.jackrabbit.mongomk.impl.command.BaseCommand

getNumOfRetries, needsRetry, needsRetry

Methods inherited from class java.lang.Object

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

Constructor Detail

NodeExistsCommand

public NodeExistsCommand(MongoNodeStore nodeStore,
                 String path,
                 Long revisionId)

Constructs a new NodeExistsCommandMongo.

Parameters:

nodeStore - Node store.

path - The root path of the nodes to get.

revisionId - The revision id or null.

Method Detail

setBranchId

public void setBranchId(String branchId)

Sets the branchId for the command.

Parameters:

branchId - Branch id.

execute

public Boolean execute()
                throws Exception

Description copied from interface: Command

Executes the Command and returns its result.

Returns:

The result.

Throws:

Exception - If an error occurred while executing.

getNode

public MongoNode getNode()

After NodeExistsCommand executed, this method can be used to access the node with the path.

Returns:

Node or null if it does not exist.