org.neo4j.kernel.api.index

Class IndexAccessor.Adapter

java.lang.Object

org.neo4j.kernel.api.index.IndexAccessor.Adapter

All Implemented Interfaces:

IndexAccessor

Enclosing interface:

IndexAccessor

public static class IndexAccessor.Adapter
extends Object
implements IndexAccessor

Nested Class Summary

Nested classes/interfaces inherited from interface org.neo4j.kernel.api.index.IndexAccessor

IndexAccessor.Adapter

Constructor Summary

Constructors

Constructor and Description
IndexAccessor.Adapter()

Method Summary

Methods

Modifier and Type	Method and Description
void	close() Closes this index accessor.
void	drop() Deletes this index as well as closes all used external resources.
void	force() Forces this index to disk.
IndexReader	newReader()
void	recover(Iterable<NodePropertyUpdate> updates) Apply a set of changes to this index.
void	updateAndCommit(Iterable<NodePropertyUpdate> updates) Apply a set of changes to this index.

Methods inherited from class java.lang.Object

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

Constructor Detail

IndexAccessor.Adapter

public IndexAccessor.Adapter()

Method Detail

drop

public void drop()

Description copied from interface: IndexAccessor

Deletes this index as well as closes all used external resources. There will not be any interactions after this call.

Specified by:

drop in interface IndexAccessor

updateAndCommit

public void updateAndCommit(Iterable<NodePropertyUpdate> updates)
                     throws IndexEntryConflictException,
                            IOException

Description copied from interface: IndexAccessor

Apply a set of changes to this index. Updates must be visible in readers created after this update.

Specified by:

updateAndCommit in interface IndexAccessor

Throws:

IndexEntryConflictException

IOException

recover

public void recover(Iterable<NodePropertyUpdate> updates)
             throws IOException

Description copied from interface: IndexAccessor

Apply a set of changes to this index. This method will be called instead of IndexAccessor.updateAndCommit(Iterable) during recovery of the database when starting up after a crash or similar. Updates given here may have already been applied to this index, so additional checks must be in place so that data doesn't get duplicated, but is idempotent.

Specified by:

recover in interface IndexAccessor

Throws:

IOException

force

public void force()

Description copied from interface: IndexAccessor

Forces this index to disk. Called at certain points from within Neo4j for example when rotating the logical log. After completion of this call there cannot be any essential state that hasn't been forced to disk.

Specified by:

force in interface IndexAccessor

close

public void close()

Description copied from interface: IndexAccessor

Closes this index accessor. There will not be any interactions after this call. After completion of this call there cannot be any essential state that hasn't been forced to disk.

Specified by:

close in interface IndexAccessor

newReader

public IndexReader newReader()

Specified by:

newReader in interface IndexAccessor

Returns:

a new IndexReader responsible for looking up results in the index. The returned reader must honor repeatable reads.