Examples with DataWriteOperations org.neo4j.kernel.api.DataWriteOperations used on opensource projects

Example 6 with DataWriteOperations

use of org.neo4j.kernel.api.DataWriteOperations in project neo4j by neo4j.

the class NodeGetUniqueFromIndexSeekIT method createNodeWithValues.

private long createNodeWithValues(String value1, String value2) throws KernelException {
    DataWriteOperations dataStatement = dataWriteOperationsInNewTransaction();
    long nodeId = dataStatement.nodeCreate();
    dataStatement.nodeAddLabel(nodeId, labelId);
    dataStatement.nodeSetProperty(nodeId, Property.stringProperty(propertyId1, value1));
    dataStatement.nodeSetProperty(nodeId, Property.stringProperty(propertyId2, value2));
    commit();
    return nodeId;
}

Example 7 with DataWriteOperations

use of org.neo4j.kernel.api.DataWriteOperations in project neo4j by neo4j.

the class PropertyIT method shouldBeAbleToRemoveResetAndTwiceRemovePropertyOnNode.

@Test
public void shouldBeAbleToRemoveResetAndTwiceRemovePropertyOnNode() throws Exception {
    // given
    Statement statement = statementInNewTransaction(AnonymousContext.writeToken());
    int prop = statement.tokenWriteOperations().propertyKeyGetOrCreateForName("foo");
    long node = statement.dataWriteOperations().nodeCreate();
    statement.dataWriteOperations().nodeSetProperty(node, property(prop, "bar"));
    commit();
    // when
    DataWriteOperations dataWriteOperations = dataWriteOperationsInNewTransaction();
    dataWriteOperations.nodeRemoveProperty(node, prop);
    dataWriteOperations.nodeSetProperty(node, property(prop, "bar"));
    dataWriteOperations.nodeRemoveProperty(node, prop);
    dataWriteOperations.nodeRemoveProperty(node, prop);
    commit();
    // then
    ReadOperations readOperations = readOperationsInNewTransaction();
    assertThat(readOperations.nodeGetProperty(node, prop), nullValue());
}

Example 8 with DataWriteOperations

use of org.neo4j.kernel.api.DataWriteOperations in project neo4j by neo4j.

the class StateHandlingStatementOperations method nodeSetProperty.

@Override
public Property nodeSetProperty(KernelStatement state, long nodeId, DefinedProperty property) throws EntityNotFoundException, InvalidTransactionTypeKernelException, AutoIndexingKernelException {
    DataWriteOperations ops = state.dataWriteOperations();
    try (Cursor<NodeItem> cursor = nodeCursorById(state, nodeId)) {
        NodeItem node = cursor.get();
        DefinedProperty existingProperty = NO_SUCH_PROPERTY;
        try (Cursor<PropertyItem> properties = nodeGetPropertyCursor(state, node, property.propertyKeyId())) {
            if (!properties.next()) {
                autoIndexing.nodes().propertyAdded(ops, nodeId, property);
            } else {
                existingProperty = Property.property(properties.get().propertyKeyId(), properties.get().value());
                autoIndexing.nodes().propertyChanged(ops, nodeId, existingProperty, property);
            }
        }
        if (existingProperty == NO_SUCH_PROPERTY) {
            state.txState().nodeDoAddProperty(node.id(), property);
            indexTxStateUpdater.onPropertyAdd(state, node, property);
            return Property.noProperty(property.propertyKeyId(), EntityType.NODE, node.id());
        } else {
            state.txState().nodeDoChangeProperty(node.id(), existingProperty, property);
            indexTxStateUpdater.onPropertyChange(state, node, existingProperty, property);
            return existingProperty;
        }
    }
}

Example 9 with DataWriteOperations

use of org.neo4j.kernel.api.DataWriteOperations in project neo4j by neo4j.

the class KernelTransactionSecurityContextTest method shouldAllowWriteAccessInWriteOnlyMode.

@Test
public void shouldAllowWriteAccessInWriteOnlyMode() throws Throwable {
    // Given
    KernelTransactionImplementation tx = newTransaction(AnonymousContext.writeOnly());
    // When
    DataWriteOperations writes = tx.acquireStatement().dataWriteOperations();
    // Then
    assertNotNull(writes);
}

Example 10 with DataWriteOperations

use of org.neo4j.kernel.api.DataWriteOperations in project neo4j by neo4j.

the class TransactionHookIT method shouldRecieveTxStateOnCommit.

@Test
public void shouldRecieveTxStateOnCommit() throws Exception {
    // Given
    TransactionHook hook = mock(TransactionHook.class);
    kernel.registerTransactionHook(hook);
    // When
    DataWriteOperations ops = dataWriteOperationsInNewTransaction();
    ops.nodeCreate();
    commit();
    // Then
    verify(hook).beforeCommit(any(ReadableTransactionState.class), any(KernelTransaction.class), any(StoreReadLayer.class), any(StorageStatement.class));
    verify(hook).afterCommit(any(ReadableTransactionState.class), any(KernelTransaction.class), any(TransactionHook.Outcome.class));
    verifyNoMoreInteractions(hook);
}