org.neo4j.unsafe.batchinsert

Class DirectRecordAccess<KEY extends Comparable<KEY>,RECORD extends org.neo4j.kernel.impl.store.record.AbstractBaseRecord,ADDITIONAL>

java.lang.Object

org.neo4j.unsafe.batchinsert.DirectRecordAccess<KEY,RECORD,ADDITIONAL>

All Implemented Interfaces:

org.neo4j.kernel.impl.transaction.state.RecordAccess<KEY,RECORD,ADDITIONAL>

public class DirectRecordAccess<KEY extends Comparable<KEY>,RECORD extends org.neo4j.kernel.impl.store.record.AbstractBaseRecord,ADDITIONAL>
extends Object
implements org.neo4j.kernel.impl.transaction.state.RecordAccess<KEY,RECORD,ADDITIONAL>

Provides direct access to records in a store. Changes are batched up and written whenever commit() is called, or close() for that matter.

Nested Class Summary

Nested classes/interfaces inherited from interface org.neo4j.kernel.impl.transaction.state.RecordAccess

org.neo4j.kernel.impl.transaction.state.RecordAccess.Loader<KEY,RECORD,ADDITIONAL>, org.neo4j.kernel.impl.transaction.state.RecordAccess.RecordProxy<KEY,RECORD,ADDITIONAL>

Constructor Summary

Constructors

Constructor and Description
DirectRecordAccess(org.neo4j.kernel.impl.store.AbstractRecordStore<RECORD> store, org.neo4j.kernel.impl.transaction.state.RecordAccess.Loader<KEY,RECORD,ADDITIONAL> loader)

Method Summary

Methods

Modifier and Type	Method and Description
Iterable<org.neo4j.kernel.impl.transaction.state.RecordAccess.RecordProxy<KEY,RECORD,ADDITIONAL>>	changes()
int	changeSize()
void	close() Closes the record access.
void	commit()
org.neo4j.kernel.impl.transaction.state.RecordAccess.RecordProxy<KEY,RECORD,ADDITIONAL>	create(KEY key, ADDITIONAL additionalData) Creates a new record with the given key.
org.neo4j.kernel.impl.transaction.state.RecordAccess.RecordProxy<KEY,RECORD,ADDITIONAL>	getIfLoaded(KEY key)
org.neo4j.kernel.impl.transaction.state.RecordAccess.RecordProxy<KEY,RECORD,ADDITIONAL>	getOrLoad(KEY key, ADDITIONAL additionalData) Gets an already loaded record, or loads it as part of this call if it wasn't.
void	setTo(KEY key, RECORD newRecord, ADDITIONAL additionalData)

Methods inherited from class java.lang.Object

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

Constructor Detail

DirectRecordAccess

public DirectRecordAccess(org.neo4j.kernel.impl.store.AbstractRecordStore<RECORD> store,
                  org.neo4j.kernel.impl.transaction.state.RecordAccess.Loader<KEY,RECORD,ADDITIONAL> loader)

Method Detail

getOrLoad

public org.neo4j.kernel.impl.transaction.state.RecordAccess.RecordProxy<KEY,RECORD,ADDITIONAL> getOrLoad(KEY key,
                                                                                                ADDITIONAL additionalData)

Description copied from interface: org.neo4j.kernel.impl.transaction.state.RecordAccess

Gets an already loaded record, or loads it as part of this call if it wasn't. The RecordAccess.RecordProxy returned has means of communicating when to get access to the actual record for reading or writing. With that information any additional loading or storing can be inferred for the specific use case (implementation).

Specified by:

getOrLoad in interface org.neo4j.kernel.impl.transaction.state.RecordAccess<KEY extends Comparable<KEY>,RECORD extends org.neo4j.kernel.impl.store.record.AbstractBaseRecord,ADDITIONAL>

Parameters:

key - the record key.

additionalData - additional data to put in the record after loaded.

Returns:

a RecordAccess.RecordProxy for the record for key.

create

public org.neo4j.kernel.impl.transaction.state.RecordAccess.RecordProxy<KEY,RECORD,ADDITIONAL> create(KEY key,
                                                                                             ADDITIONAL additionalData)

Description copied from interface: org.neo4j.kernel.impl.transaction.state.RecordAccess

Creates a new record with the given key. Any additionalData is set in the record before returning.

Specified by:

create in interface org.neo4j.kernel.impl.transaction.state.RecordAccess<KEY extends Comparable<KEY>,RECORD extends org.neo4j.kernel.impl.store.record.AbstractBaseRecord,ADDITIONAL>

Parameters:

key - the record key.

additionalData - additional data to put in the record after loaded.

Returns:

a RecordAccess.RecordProxy for the record for key.

getIfLoaded

public org.neo4j.kernel.impl.transaction.state.RecordAccess.RecordProxy<KEY,RECORD,ADDITIONAL> getIfLoaded(KEY key)

Specified by:

getIfLoaded in interface org.neo4j.kernel.impl.transaction.state.RecordAccess<KEY extends Comparable<KEY>,RECORD extends org.neo4j.kernel.impl.store.record.AbstractBaseRecord,ADDITIONAL>

setTo

public void setTo(KEY key,
         RECORD newRecord,
         ADDITIONAL additionalData)

Specified by:

setTo in interface org.neo4j.kernel.impl.transaction.state.RecordAccess<KEY extends Comparable<KEY>,RECORD extends org.neo4j.kernel.impl.store.record.AbstractBaseRecord,ADDITIONAL>

changeSize

public int changeSize()

Specified by:

changeSize in interface org.neo4j.kernel.impl.transaction.state.RecordAccess<KEY extends Comparable<KEY>,RECORD extends org.neo4j.kernel.impl.store.record.AbstractBaseRecord,ADDITIONAL>

changes

public Iterable<org.neo4j.kernel.impl.transaction.state.RecordAccess.RecordProxy<KEY,RECORD,ADDITIONAL>> changes()

Specified by:

changes in interface org.neo4j.kernel.impl.transaction.state.RecordAccess<KEY extends Comparable<KEY>,RECORD extends org.neo4j.kernel.impl.store.record.AbstractBaseRecord,ADDITIONAL>

close

public void close()

Description copied from interface: org.neo4j.kernel.impl.transaction.state.RecordAccess

Closes the record access.

Specified by:

close in interface org.neo4j.kernel.impl.transaction.state.RecordAccess<KEY extends Comparable<KEY>,RECORD extends org.neo4j.kernel.impl.store.record.AbstractBaseRecord,ADDITIONAL>

commit

public void commit()