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com.tangosol.net
Class ConfigurableQuorumPolicy

java.lang.Object
com.tangosol.util.Base
com.tangosol.net.ConfigurableQuorumPolicy

All Implemented Interfaces:

ActionPolicy

Direct Known Subclasses:

ConfigurableQuorumPolicy.ClusterQuorumPolicy, ConfigurableQuorumPolicy.MembershipQuorumPolicy, ConfigurableQuorumPolicy.WrapperQuorumPolicy

public abstract class ConfigurableQuorumPolicy

extends Base

implements ActionPolicy

ConfigurableQuorumPolicy provides a Quorum-based ActionPolicy for services based on the cluster-configuration.

Since:

Coherence 3.6

Author:

rhl 2009.05.07

Nested Class Summary

static class	ConfigurableQuorumPolicy.ClusterQuorumPolicy ClusterQuorumPolicy defines an action policy that is applicable to the cluster.
protected static class	ConfigurableQuorumPolicy.MembershipQuorumPolicy MembershipQuorumPolicy is a quorum policy that is stateless and based solely on service membership sizes.
static class	ConfigurableQuorumPolicy.PartitionedCacheQuorumPolicy PartitionedCacheQuorumPolicy defines a configurable quorum policy that is applicable to a DistributedCacheService.
static class	ConfigurableQuorumPolicy.ProxyQuorumPolicy ProxyQuorumPolicy defines a configurable quorum policy that is applicable to a proxy service.
protected static class	ConfigurableQuorumPolicy.WrapperQuorumPolicy WrapperQuorumPolicy is a ConfigurableQuorumPolicy that wraps an arbitrary ActionPolicy instance.

Field Summary

protected XmlElement

m_xmlConfig The Xml configuration used to configure this policy.

Constructor Summary

protected

ConfigurableQuorumPolicy(XmlElement xmlConfig) Create a ConfigurableQuorumPolicy using the specified Xml configuration.

Method Summary

static ConfigurableQuorumPolicy	createPolicy(XmlElement xmlConfig, ClassLoader loader) Create an action policy based on the specified XML configuration.
XmlElement	getConfig() Obtain the factory configuration XML.
abstract String	getStatusDescription() Return a String that describes the current Quorum state.
static ConfigurableQuorumPolicy.ClusterQuorumPolicy	instantiateClusterPolicy(XmlElement xmlConfig) Instantiate an action policy for the cluster with the specified XML configuration.
static ConfigurableQuorumPolicy.PartitionedCacheQuorumPolicy	instantiatePartitionedCachePolicy(XmlElement xmlConfig) Instantiate an action policy for a PartitionedCache service with the specified XML configuration.
static ConfigurableQuorumPolicy.ProxyQuorumPolicy	instantiateProxyPolicy(XmlElement xmlConfig) Instantiate an action policy for a proxy service with the specified XML configuration.

Methods inherited from interface com.tangosol.net.ActionPolicy

init, isAllowed, toString

Field Detail

m_xmlConfig

protected XmlElement m_xmlConfig

The Xml configuration used to configure this policy.

Constructor Detail

ConfigurableQuorumPolicy

protected ConfigurableQuorumPolicy(XmlElement xmlConfig)

Create a ConfigurableQuorumPolicy using the specified Xml configuration.

Parameters:

xmlConfig - the Xml configuration

Method Detail

getConfig

public XmlElement getConfig()

Obtain the factory configuration XML.

Returns:

the configuration XML

getStatusDescription

public abstract String getStatusDescription()

Return a String that describes the current Quorum state.

Returns:

a String describing the allowed actions in the current state

createPolicy

public static ConfigurableQuorumPolicy createPolicy(XmlElement xmlConfig,
                                                    ClassLoader loader)

Create an action policy based on the specified XML configuration.

Parameters:

xmlConfig - the XML element that contains the configuration info

loader - the class loader to instantiate the policy

Returns:

a ConfigurableQuorumPolicy instance

instantiatePartitionedCachePolicy

public static ConfigurableQuorumPolicy.PartitionedCacheQuorumPolicy instantiatePartitionedCachePolicy(XmlElement xmlConfig)

Instantiate an action policy for a PartitionedCache service with the specified XML configuration.

Parameters:

xmlConfig - the XML element that contains the configuration info

Returns:

an action policy for a PartitionedCache service

instantiateProxyPolicy

public static ConfigurableQuorumPolicy.ProxyQuorumPolicy instantiateProxyPolicy(XmlElement xmlConfig)

Instantiate an action policy for a proxy service with the specified XML configuration.

Parameters:

xmlConfig - the XML element that contains the configuration info

Returns:

an action policy for a proxy service

instantiateClusterPolicy

public static ConfigurableQuorumPolicy.ClusterQuorumPolicy instantiateClusterPolicy(XmlElement xmlConfig)

Instantiate an action policy for the cluster with the specified XML configuration.

Parameters:

xmlConfig - the XML element that contains the configuration info

Returns:

an action policy for the cluster

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