org.sandev.basics.CacheManager
Class CacheManagerNodeDecl

java.lang.Object
  org.sandev.basics.CacheManager.CacheManagerNodeDecl

Direct Known Subclasses:

CacheManagerNodeBase, CacheManagerNodeInstance

public class CacheManagerNodeDecl
extends java.lang.Object

The CacheManager offloads the processing associated with multiple update subscriptions. In a typical deployment, a CacheManager will subscribe to all update messages from a DataManager, and all other caching nodes will subscribe to the CacheManager. This keeps the overhead of checking which update notifications actually need to be broadcast from interfering with transaction throughput.

If update notification lag time starts to become significant, it can be alleviated through adding more CacheManagers and distributing the load. Having a CacheManager local to each server may increase efficiency since optimized messaging can be used for all local subscribers.

CacheManagerNode configuration is deployment specific. For setup consultation, contact Structs And Nodes Development Services.

inbound synchronous message calls:

• CacheAction onReceive(CacheAction msg)
  node instance configuration: incomingSyncCacheAction

outbound asynchronous message sends:

• void send(CacheAction msg)
  node instance configuration: outgoingAsyncCacheAction

inbound asynchronous message calls:

• void onDelivery(SandUpdateMessage msg)
  node instance configuration: incomingAsyncSandUpdateMessage
• void onDelivery(CacheAction msg)
  node instance configuration: incomingAsyncCacheActionMessage

Field Summary

protected java.lang.String	localAuthUserLookup The name of a local node supporting AuthUserLookup.
protected java.lang.String	notificationPassword The password of the AuthUser which will be used for authorization of outgoing CacheAction sends.
protected java.lang.String	notificationUsername The username of the AuthUser which will be used for authorization of outgoing CacheAction sends.

Constructor Summary

CacheManagerNodeDecl()

Method Summary

Methods inherited from class java.lang.Object

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

Field Detail

localAuthUserLookup

protected java.lang.String localAuthUserLookup

The name of a local node supporting AuthUserLookup. This is used to convert the notificationUsername/Password into an AuthUser for authorization of outgoing CacheAction sends.

notificationUsername

protected java.lang.String notificationUsername

The username of the AuthUser which will be used for authorization of outgoing CacheAction sends. If not specified then secure cache update notification is not supported.

Length in characters, normal: 15 max: 80

notificationPassword

protected java.lang.String notificationPassword

The password of the AuthUser which will be used for authorization of outgoing CacheAction sends.

input to this field input is hidden in the UI.
Length in characters, normal: 15 max: 80

Constructor Detail

CacheManagerNodeDecl

public CacheManagerNodeDecl()