org.neo4j.kernel.api.impl.schema

Class WritableDatabaseSchemaIndex

java.lang.Object

org.neo4j.kernel.api.impl.index.WritableAbstractDatabaseIndex<org.neo4j.kernel.api.impl.schema.LuceneSchemaIndex>

org.neo4j.kernel.api.impl.schema.WritableDatabaseSchemaIndex

All Implemented Interfaces:

Closeable, AutoCloseable, DatabaseIndex, SchemaIndex

public class WritableDatabaseSchemaIndex
extends WritableAbstractDatabaseIndex<org.neo4j.kernel.api.impl.schema.LuceneSchemaIndex>
implements SchemaIndex

Writable schema index

Constructor Summary

Constructors

Constructor and Description
WritableDatabaseSchemaIndex(PartitionedIndexStorage storage, org.neo4j.kernel.api.schema.index.IndexDescriptor descriptor, org.neo4j.kernel.impl.api.index.sampling.IndexSamplingConfig samplingConfig, WritableIndexPartitionFactory writableIndexPartitionFactory)

Method Summary

Modifier and Type	Method and Description
org.neo4j.kernel.api.schema.index.IndexDescriptor	getDescriptor()
AbstractIndexPartition	getFirstPartition(List<AbstractIndexPartition> partitions)
org.neo4j.storageengine.api.schema.IndexReader	getIndexReader()
LuceneIndexWriter	getIndexWriter()
boolean	hasSinglePartition(List<AbstractIndexPartition> partitions)
boolean	isOnline() Check if this index is marked as online.
void	markAsFailed(String failure) Writes the given failure message to the failure storage.
void	markAsOnline() Marks index as online by including "status" -> "online" map into commit metadata of the first partition.
void	verifyUniqueness(org.neo4j.kernel.api.index.PropertyAccessor accessor, int[] propertyKeyIds) Verifies uniqueness of property values present in this index.
void	verifyUniqueness(org.neo4j.kernel.api.index.PropertyAccessor accessor, int[] propertyKeyIds, List<Object> updatedPropertyValues) Verifies uniqueness of updated property values.

Methods inherited from class org.neo4j.kernel.api.impl.index.WritableAbstractDatabaseIndex

addNewPartition, allDocumentsReader, close, create, drop, exists, flush, getPartitions, isOpen, isReadOnly, isValid, maybeRefreshBlocking, open, snapshot

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.neo4j.kernel.api.impl.index.DatabaseIndex

allDocumentsReader, create, drop, exists, flush, getPartitions, isOpen, isReadOnly, isValid, maybeRefreshBlocking, open, snapshot

Methods inherited from interface java.io.Closeable

close

Constructor Detail

WritableDatabaseSchemaIndex

public WritableDatabaseSchemaIndex(PartitionedIndexStorage storage,
                                   org.neo4j.kernel.api.schema.index.IndexDescriptor descriptor,
                                   org.neo4j.kernel.impl.api.index.sampling.IndexSamplingConfig samplingConfig,
                                   WritableIndexPartitionFactory writableIndexPartitionFactory)

Method Detail

getIndexWriter

public LuceneIndexWriter getIndexWriter()
                                 throws IOException

Specified by:

getIndexWriter in interface SchemaIndex

Throws:

IOException

getIndexReader

public org.neo4j.storageengine.api.schema.IndexReader getIndexReader()
                                                              throws IOException

Specified by:

getIndexReader in interface SchemaIndex

Throws:

IOException

getDescriptor

public org.neo4j.kernel.api.schema.index.IndexDescriptor getDescriptor()

Specified by:

getDescriptor in interface SchemaIndex

verifyUniqueness

public void verifyUniqueness(org.neo4j.kernel.api.index.PropertyAccessor accessor,
                             int[] propertyKeyIds)
                      throws IOException,
                             org.neo4j.kernel.api.exceptions.index.IndexEntryConflictException

Verifies uniqueness of property values present in this index.

Specified by:

verifyUniqueness in interface SchemaIndex

Parameters:

accessor - the accessor to retrieve actual property values from the store.

propertyKeyIds - the ids of the properties to verify.

Throws:

IOException

org.neo4j.kernel.api.exceptions.index.IndexEntryConflictException - if there are duplicates.

See Also:

UniquenessVerifier.verify(PropertyAccessor, int[])

verifyUniqueness

public void verifyUniqueness(org.neo4j.kernel.api.index.PropertyAccessor accessor,
                             int[] propertyKeyIds,
                             List<Object> updatedPropertyValues)
                      throws IOException,
                             org.neo4j.kernel.api.exceptions.index.IndexEntryConflictException

Verifies uniqueness of updated property values.

Specified by:

verifyUniqueness in interface SchemaIndex

Parameters:

accessor - the accessor to retrieve actual property values from the store.

propertyKeyIds - the ids of the properties to verify.

updatedPropertyValues - the values to check uniqueness for.

Throws:

IOException

org.neo4j.kernel.api.exceptions.index.IndexEntryConflictException - if there are duplicates.

See Also:

UniquenessVerifier.verify(PropertyAccessor, int[], List)

isOnline

public boolean isOnline()
                 throws IOException

Check if this index is marked as online.

Specified by:

isOnline in interface SchemaIndex

Returns:

true if index is online, false otherwise

Throws:

IOException

markAsOnline

public void markAsOnline()
                  throws IOException

Marks index as online by including "status" -> "online" map into commit metadata of the first partition.

Specified by:

markAsOnline in interface SchemaIndex

Throws:

IOException

markAsFailed

public void markAsFailed(String failure)
                  throws IOException

Writes the given failure message to the failure storage.

Specified by:

markAsFailed in interface SchemaIndex

Parameters:

failure - the failure message.

Throws:

IOException

hasSinglePartition

public boolean hasSinglePartition(List<AbstractIndexPartition> partitions)

getFirstPartition

public AbstractIndexPartition getFirstPartition(List<AbstractIndexPartition> partitions)