org.neo4j.kernel.api.impl.schema.verification

Class SimpleUniquenessVerifier

java.lang.Object

org.neo4j.kernel.api.impl.schema.verification.SimpleUniquenessVerifier

All Implemented Interfaces:

Closeable, AutoCloseable, UniquenessVerifier

public class SimpleUniquenessVerifier
extends Object
implements UniquenessVerifier

A UniquenessVerifier that is able to verify value uniqueness inside a single index partition using it's PartitionSearcher.

This verifier reads all terms, checks document frequency for each term and verifies uniqueness of values from the property store if document frequency is greater than 1.

See Also:

PartitionSearcher, DuplicateCheckingCollector

Constructor Summary

Constructors

Constructor and Description
SimpleUniquenessVerifier(PartitionSearcher partitionSearcher)

Method Summary

Modifier and Type	Method and Description
void	close()
void	verify(org.neo4j.kernel.api.index.PropertyAccessor accessor, int propKeyId) Verifies uniqueness of existing data.
void	verify(org.neo4j.kernel.api.index.PropertyAccessor accessor, int propKeyId, List<Object> updatedPropertyValues) Verifies uniqueness of given values and existing data.

Methods inherited from class java.lang.Object

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

Constructor Detail

SimpleUniquenessVerifier

public SimpleUniquenessVerifier(PartitionSearcher partitionSearcher)

Method Detail

verify

public void verify(org.neo4j.kernel.api.index.PropertyAccessor accessor,
                   int propKeyId)
            throws org.neo4j.kernel.api.exceptions.index.IndexEntryConflictException,
                   IOException

Description copied from interface: UniquenessVerifier

Verifies uniqueness of existing data.

Specified by:

verify in interface UniquenessVerifier

Parameters:

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

propKeyId - the id of the property to verify.

Throws:

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

IOException - when Lucene throws IOException.

verify

public void verify(org.neo4j.kernel.api.index.PropertyAccessor accessor,
                   int propKeyId,
                   List<Object> updatedPropertyValues)
            throws org.neo4j.kernel.api.exceptions.index.IndexEntryConflictException,
                   IOException

Description copied from interface: UniquenessVerifier

Verifies uniqueness of given values and existing data.

Specified by:

verify in interface UniquenessVerifier

Parameters:

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

propKeyId - the id of the property to verify.

updatedPropertyValues - the values to check uniqueness for.

Throws:

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

IOException - when Lucene throws IOException.

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Throws:

IOException