org.neo4j.kernel.api

Interface StatementContext

All Superinterfaces:

AutoCloseable, Closeable, EntityOperations, EntityReadOperations, EntityWriteOperations, KeyOperations, KeyReadOperations, KeyWriteOperations, ReadOperations, SchemaOperations, SchemaReadOperations, SchemaStateOperations, SchemaWriteOperations, WriteOperations

public interface StatementContext
extends ReadOperations, WriteOperations, KeyOperations, EntityOperations, SchemaOperations, Closeable

Interface for accessing and modifying the underlying graph. A statement is executing within a transaction and will be able to see all previous changes made within that transaction. When done using a statement it must be closed. Note that this interface only combines a set of interfaces that define operations that the database can perform. One main difference between a TransactionContext and a StatementContext is life cycle of some locks, where read locks can live within one statement, whereas write locks will live for the entire transaction. === Method Names === The most prominent entity the method deals with is the first word of the method name. If dealt with in general, the word is pluralized. We prefer physical entities to meta-entities (e.g. node is preferred to index and label). EntityReadOperations.nodesGetFromIndexLookup(org.neo4j.kernel.impl.api.index.IndexDescriptor, Object) is a good example for both of the last two rules, nodes are the physical entities we are interested in, therefore that word is first, the index is just a means of getting to the nodes. Parameter order for all methods, should reflect the order of words in the method name, with the most prominent entity being the first parameter.

Method Summary

Methods

Modifier and Type	Method and Description
void	close() Closes this statement.

Methods inherited from interface org.neo4j.kernel.api.operations.KeyReadOperations

labelGetForName, labelGetName, labelsGetAllTokens, propertyKeyGetForName, propertyKeyGetName

Methods inherited from interface org.neo4j.kernel.api.operations.KeyWriteOperations

labelGetOrCreateForName, propertyKeyGetOrCreateForName

Methods inherited from interface org.neo4j.kernel.api.operations.EntityReadOperations

nodeGetAllProperties, nodeGetLabels, nodeGetProperty, nodeGetPropertyKeys, nodeHasLabel, nodeHasProperty, nodesGetForLabel, nodesGetFromIndexLookup, relationshipGetAllProperties, relationshipGetProperty, relationshipGetPropertyKeys, relationshipHasProperty

Methods inherited from interface org.neo4j.kernel.api.operations.EntityWriteOperations

nodeAddLabel, nodeDelete, nodeRemoveLabel, nodeRemoveProperty, nodeSetProperty, relationshipRemoveProperty, relationshipSetProperty

Methods inherited from interface org.neo4j.kernel.api.operations.SchemaReadOperations

constraintsGetAll, constraintsGetForLabel, constraintsGetForLabelAndPropertyKey, indexesGetAll, indexesGetForLabel, indexesGetForLabelAndPropertyKey, indexGetCommittedId, indexGetOwningUniquenessConstraintId, indexGetState, uniqueIndexesGetAll, uniqueIndexesGetForLabel

Methods inherited from interface org.neo4j.kernel.api.operations.SchemaWriteOperations

constraintDrop, indexCreate, indexDrop, uniqueIndexCreate, uniqueIndexDrop, uniquenessConstraintCreate

Methods inherited from interface org.neo4j.kernel.api.operations.SchemaStateOperations

schemaStateContains, schemaStateGetOrCreate

Method Detail

close

void close()

Closes this statement. Statements must be closed when done and before their parent transaction finishes. As an example statement-bound locks can be released when closing a statement.

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable