org.openspaces.persistency

Class ClusterInfoAwareSpaceDataSource

java.lang.Object

com.gigaspaces.datasource.SpaceDataSource

org.openspaces.persistency.ClusterInfoAwareSpaceDataSource

All Implemented Interfaces:

ClusterInfoAware

Direct Known Subclasses:

CassandraSpaceDataSource, ManagedEntriesSpaceDataSource

public abstract class ClusterInfoAwareSpaceDataSource
extends SpaceDataSource
implements ClusterInfoAware

Created by yuvalm on 23/04/2014.

Since:

10.0

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	augmentInitialLoadEntries
protected ClusterInfo	clusterInfo
protected Map<String,String>	initialLoadQueries
protected String[]	initialLoadQueryScanningBasePackages

Constructor Summary

Constructors

Constructor and Description
ClusterInfoAwareSpaceDataSource()

Method Summary

Modifier and Type	Method and Description
protected String	createInitialLoadQuery(SpaceTypeDescriptor typeDescriptor, String templateQuery)
Map<String,String>	getInitialLoadQueries()
DataIterator<SpaceTypeDescriptor>	initialMetadataLoad() This method is invoked on space initialization (before SpaceDataSource.initialDataLoad() is invoked) and is used for introducing data types kept in the data source to the space.
protected void	obtainInitialLoadQueries() This method scans the classpath using Spring's ClassPathScanningCandidateComponentProvider.
void	setClusterInfo(ClusterInfo clusterInfo) Sets the cluster information.
void	setInitialLoadQueryScanningBasePackages(String[] initialLoadQueryScanningBasePackages)

Methods inherited from class com.gigaspaces.datasource.SpaceDataSource

getById, getDataIterator, getDataIteratorByIds, initialDataLoad, supportsInheritance

Methods inherited from class java.lang.Object

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

Field Detail

initialLoadQueryScanningBasePackages

protected String[] initialLoadQueryScanningBasePackages

clusterInfo

protected ClusterInfo clusterInfo

initialLoadQueries

protected Map<String,String> initialLoadQueries

augmentInitialLoadEntries

protected boolean augmentInitialLoadEntries

Constructor Detail

ClusterInfoAwareSpaceDataSource

public ClusterInfoAwareSpaceDataSource()

Method Detail

setInitialLoadQueryScanningBasePackages

public void setInitialLoadQueryScanningBasePackages(String[] initialLoadQueryScanningBasePackages)

initialMetadataLoad

public DataIterator<SpaceTypeDescriptor> initialMetadataLoad()

Description copied from class: SpaceDataSource

This method is invoked on space initialization (before SpaceDataSource.initialDataLoad() is invoked) and is used for introducing data types kept in the data source to the space.

Please note that derived types should be returned after their super types from the iterator.

It is possible to create a SpaceTypeDescriptor using SpaceTypeDescriptorBuilder.

Overrides:

initialMetadataLoad in class SpaceDataSource

Returns:

A DataIterator instance which contains all SpaceTypeDescriptor instances to be introduced to the Space upon its initialization - null is treated as an empty iterator.

setClusterInfo

public void setClusterInfo(ClusterInfo clusterInfo)

Description copied from interface: ClusterInfoAware

Sets the cluster information.

Note, the cluster information is obtained externally from the application context which means that this feature need to be supported by specific containers (and is not supported by plain Spring application context). This means that beans that implement ClusterInfoAware should take into account the fact that the cluster info provided might be null.

Specified by:

setClusterInfo in interface ClusterInfoAware

Parameters:

clusterInfo - The cluster information to be injected

getInitialLoadQueries

public Map<String,String> getInitialLoadQueries()

obtainInitialLoadQueries

protected void obtainInitialLoadQueries()

This method scans the classpath using Spring's ClassPathScanningCandidateComponentProvider. This scanner uses the logic in the #isClassMatch method to retrieve names of classes that contain a method annotated with SpaceInitialLoadQuery. This collection of class names is then handled in such a way that each annotated method is validated, examined and eventually invoked to obtain the specific type's initial load query.

createInitialLoadQuery

protected String createInitialLoadQuery(SpaceTypeDescriptor typeDescriptor,
                                        String templateQuery)