org.neo4j.kernel.api.operations

Interface EntityReadOperations

All Known Subinterfaces:

EntityOperations, ReadOperations, StatementOperations

public interface EntityReadOperations

Method Summary

Methods

Modifier and Type	Method and Description
Iterator<Property>	graphGetAllProperties(StatementState state)
Property	graphGetProperty(StatementState state, long propertyKeyId)
org.neo4j.kernel.impl.api.PrimitiveLongIterator	graphGetPropertyKeys(StatementState state) Return all property keys associated with a relationship.
boolean	graphHasProperty(StatementState state, long propertyKeyId)
Iterator<Property>	nodeGetAllProperties(StatementState state, long nodeId)
org.neo4j.kernel.impl.api.PrimitiveLongIterator	nodeGetLabels(StatementState state, long nodeId) Returns all labels set on node with id nodeId.
Property	nodeGetProperty(StatementState state, long nodeId, long propertyKeyId)
org.neo4j.kernel.impl.api.PrimitiveLongIterator	nodeGetPropertyKeys(StatementState state, long nodeId) Return all property keys associated with a node.
boolean	nodeHasLabel(StatementState state, long nodeId, long labelId) Checks if a node is labeled with a certain label or not.
boolean	nodeHasProperty(StatementState state, long nodeId, long propertyKeyId) Returns true if node has the property given it's property key id for the node with the given node id
org.neo4j.kernel.impl.api.PrimitiveLongIterator	nodesGetForLabel(StatementState state, long labelId)
org.neo4j.kernel.impl.api.PrimitiveLongIterator	nodesGetFromIndexLookup(StatementState state, org.neo4j.kernel.impl.api.index.IndexDescriptor index, Object value) Returns an iterable with the matched nodes.
Iterator<Property>	relationshipGetAllProperties(StatementState state, long relationshipId)
Property	relationshipGetProperty(StatementState state, long relationshipId, long propertyKeyId)
org.neo4j.kernel.impl.api.PrimitiveLongIterator	relationshipGetPropertyKeys(StatementState state, long relationshipId) Return all property keys associated with a relationship.
boolean	relationshipHasProperty(StatementState state, long relationshipId, long propertyKeyId)

Method Detail

nodesGetForLabel

org.neo4j.kernel.impl.api.PrimitiveLongIterator nodesGetForLabel(StatementState state,
                                                               long labelId)

Parameters:

labelId - the label id of the label that returned nodes are guaranteed to have

Returns:

ids of all nodes that have the given label

nodesGetFromIndexLookup

org.neo4j.kernel.impl.api.PrimitiveLongIterator nodesGetFromIndexLookup(StatementState state,
                                                                      org.neo4j.kernel.impl.api.index.IndexDescriptor index,
                                                                      Object value)
                                                                        throws IndexNotFoundKernelException

Returns an iterable with the matched nodes.

Throws:

IndexNotFoundKernelException - if no such index found.

nodeHasLabel

boolean nodeHasLabel(StatementState state,
                   long nodeId,
                   long labelId)
                     throws EntityNotFoundException

Checks if a node is labeled with a certain label or not. Returns true if the node is labeled with the label, otherwise false. Label ids are retrieved from KeyWriteOperations.labelGetOrCreateForName(StatementState, String) or KeyReadOperations.labelGetForName(StatementState, String).

Throws:

EntityNotFoundException

nodeGetLabels

org.neo4j.kernel.impl.api.PrimitiveLongIterator nodeGetLabels(StatementState state,
                                                            long nodeId)
                                                              throws EntityNotFoundException

Returns all labels set on node with id nodeId. If the node has no labels an empty Iterable will be returned.

Throws:

EntityNotFoundException

nodeGetProperty

Property nodeGetProperty(StatementState state,
                       long nodeId,
                       long propertyKeyId)
                         throws PropertyKeyIdNotFoundException,
                                EntityNotFoundException

Throws:

PropertyKeyIdNotFoundException

EntityNotFoundException

relationshipGetProperty

Property relationshipGetProperty(StatementState state,
                               long relationshipId,
                               long propertyKeyId)
                                 throws PropertyKeyIdNotFoundException,
                                        EntityNotFoundException

Throws:

PropertyKeyIdNotFoundException

EntityNotFoundException

graphGetProperty

Property graphGetProperty(StatementState state,
                        long propertyKeyId)
                          throws PropertyKeyIdNotFoundException

Throws:

PropertyKeyIdNotFoundException

nodeHasProperty

boolean nodeHasProperty(StatementState state,
                      long nodeId,
                      long propertyKeyId)
                        throws PropertyKeyIdNotFoundException,
                               EntityNotFoundException

Returns true if node has the property given it's property key id for the node with the given node id

Throws:

PropertyKeyIdNotFoundException

EntityNotFoundException

relationshipHasProperty

boolean relationshipHasProperty(StatementState state,
                              long relationshipId,
                              long propertyKeyId)
                                throws PropertyKeyIdNotFoundException,
                                       EntityNotFoundException

Throws:

PropertyKeyIdNotFoundException

EntityNotFoundException

graphHasProperty

boolean graphHasProperty(StatementState state,
                       long propertyKeyId)
                         throws PropertyKeyIdNotFoundException

Throws:

PropertyKeyIdNotFoundException

nodeGetPropertyKeys

org.neo4j.kernel.impl.api.PrimitiveLongIterator nodeGetPropertyKeys(StatementState state,
                                                                  long nodeId)
                                                                    throws EntityNotFoundException

Return all property keys associated with a node.

Throws:

EntityNotFoundException

nodeGetAllProperties

Iterator<Property> nodeGetAllProperties(StatementState state,
                                      long nodeId)
                                        throws EntityNotFoundException

Throws:

EntityNotFoundException

relationshipGetPropertyKeys

org.neo4j.kernel.impl.api.PrimitiveLongIterator relationshipGetPropertyKeys(StatementState state,
                                                                          long relationshipId)
                                                                            throws EntityNotFoundException

Return all property keys associated with a relationship.

Throws:

EntityNotFoundException

relationshipGetAllProperties

Iterator<Property> relationshipGetAllProperties(StatementState state,
                                              long relationshipId)
                                                throws EntityNotFoundException

Throws:

EntityNotFoundException

graphGetPropertyKeys

org.neo4j.kernel.impl.api.PrimitiveLongIterator graphGetPropertyKeys(StatementState state)

Return all property keys associated with a relationship.

graphGetAllProperties

Iterator<Property> graphGetAllProperties(StatementState state)