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org.apache.jetspeed.cluster
Interface NodeManager

public interface NodeManager

Node Manager Interface

Version:

Author:

Hajo Birthelmer

Field Summary

static int	INVALID_NODE_REQUEST
static int	NODE_NEW
static int	NODE_OUTDATED
static int	NODE_SAVED

Method Summary

void	addNode(java.lang.Long revision, java.lang.String contextName) Add a new node or update the revision of an existing one...(i.e.
int	checkNode(java.lang.Long revision, java.lang.String contextName) Returns the current "knowledge" about a given node (i.e.
int	getNumberOfNodes() return the number of currently stored nodes
void	removeNode(java.lang.String contextName) Remove a node

Field Detail

INVALID_NODE_REQUEST

static final int INVALID_NODE_REQUEST

See Also:

Constant Field Values

NODE_SAVED

static final int NODE_SAVED

See Also:

Constant Field Values

NODE_OUTDATED

static final int NODE_OUTDATED

See Also:

Constant Field Values

NODE_NEW

static final int NODE_NEW

See Also:

Constant Field Values

Method Detail

checkNode

int checkNode(java.lang.Long revision,
              java.lang.String contextName)

Returns the current "knowledge" about a given node (i.e. the portlet application). If the contextName doesn't exist NODE_NEW is returned. An revision requested newer than what is stored is indicated by NODE_OUTDATED.

Parameters:

revision -

contextName -

Returns:

addNode

void addNode(java.lang.Long revision,
             java.lang.String contextName)
             throws java.lang.Exception

Add a new node or update the revision of an existing one...(i.e. the portlet application) to the local info

Parameters:

revision -

contextName -

Throws:

java.lang.Exception

getNumberOfNodes

int getNumberOfNodes()

return the number of currently stored nodes

Returns:

removeNode

void removeNode(java.lang.String contextName)
                throws java.lang.Exception

Remove a node

Parameters:

id -

contextName -

Throws:

java.lang.Exception