org.neo4j.kernel.api.operations

Interface KeyReadOperations

All Known Subinterfaces:

KeyOperations, ReadOperations, StatementOperations

public interface KeyReadOperations

Field Summary

Fields

Modifier and Type	Field and Description
static long	NO_SUCH_LABEL
static long	NO_SUCH_PROPERTY_KEY

Method Summary

Methods

Modifier and Type	Method and Description
long	labelGetForName(Statement state, String labelName) Returns a label id for a label name.
String	labelGetName(Statement state, long labelId) Returns the label name for the given label id.
Iterator<org.neo4j.kernel.impl.core.Token>	labelsGetAllTokens(Statement state) Returns the labels currently stored in the database
long	propertyKeyGetForName(Statement state, String propertyKeyName) Returns a property key id for the given property key.
String	propertyKeyGetName(Statement state, long propertyKeyId) Returns the name of a property given its property key id
long	relationshipTypeGetForName(Statement state, String relationshipTypeName)
String	relationshipTypeGetName(Statement state, long relationshipTypeId)

Field Detail

NO_SUCH_LABEL

static final long NO_SUCH_LABEL

See Also:

Constant Field Values

NO_SUCH_PROPERTY_KEY

static final long NO_SUCH_PROPERTY_KEY

See Also:

Constant Field Values

Method Detail

labelGetForName

long labelGetForName(Statement state,
                   String labelName)

Returns a label id for a label name. If the label doesn't exist, NO_SUCH_LABEL will be returned.

labelGetName

String labelGetName(Statement state,
                  long labelId)
                    throws LabelNotFoundKernelException

Returns the label name for the given label id.

Throws:

LabelNotFoundKernelException

propertyKeyGetForName

long propertyKeyGetForName(Statement state,
                         String propertyKeyName)

Returns a property key id for the given property key. If the property key doesn't exist, NO_SUCH_PROPERTY_KEY will be returned.

propertyKeyGetName

String propertyKeyGetName(Statement state,
                        long propertyKeyId)
                          throws PropertyKeyIdNotFoundKernelException

Returns the name of a property given its property key id

Throws:

PropertyKeyIdNotFoundKernelException

labelsGetAllTokens

Iterator<org.neo4j.kernel.impl.core.Token> labelsGetAllTokens(Statement state)

Returns the labels currently stored in the database

relationshipTypeGetForName

long relationshipTypeGetForName(Statement state,
                              String relationshipTypeName)

relationshipTypeGetName

String relationshipTypeGetName(Statement state,
                             long relationshipTypeId)
                               throws RelationshipTypeIdNotFoundKernelException

Throws:

RelationshipTypeIdNotFoundKernelException