Package com.couchbase.client.core.node
Class ViewLocator
- java.lang.Object
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- com.couchbase.client.core.node.RoundRobinLocator
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- com.couchbase.client.core.node.ViewLocator
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- All Implemented Interfaces:
Locator
public class ViewLocator extends RoundRobinLocator
TheViewLocatorextends the round-robin locator with some custom checks.
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Constructor Summary
Constructors Constructor Description ViewLocator()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description protected booleancheckServiceNotAvailable(Request<? extends Response> request, ClusterConfig config)Can be overridden to check if a request should be cancelled immediately that the service is not supported.protected booleannodeCanBeUsed(Node node, Request<? extends Response> request, ClusterConfig config)In addition to checking that the view service is enabled, for view dispatching it is vital that a request is only ever sent to a node which has active primary KV partitions.-
Methods inherited from class com.couchbase.client.core.node.RoundRobinLocator
dispatch
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Method Detail
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checkServiceNotAvailable
protected boolean checkServiceNotAvailable(Request<? extends Response> request, ClusterConfig config)
Description copied from class:RoundRobinLocatorCan be overridden to check if a request should be cancelled immediately that the service is not supported.If this method returns false, something MUST be done with the request or it will time out!
- Overrides:
checkServiceNotAvailablein classRoundRobinLocator
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nodeCanBeUsed
protected boolean nodeCanBeUsed(Node node, Request<? extends Response> request, ClusterConfig config)
In addition to checking that the view service is enabled, for view dispatching it is vital that a request is only ever sent to a node which has active primary KV partitions.- Overrides:
nodeCanBeUsedin classRoundRobinLocator- Parameters:
node- the node to check against.request- the request in scope.config- the cluster-level config.- Returns:
- true if the node can be used to dispatch the request.
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