Examples with TransactionState org.neo4j.kernel.api.txstate.TransactionState used on opensource projects

Example 36 with TransactionState

use of org.neo4j.kernel.api.txstate.TransactionState in project neo4j by neo4j.

the class Operations method nodeCreate.

@Override
public long nodeCreate() {
    ktx.securityAuthorizationHandler().assertAllowsCreateNode(ktx.securityContext(), token::labelGetName, null);
    ktx.assertOpen();
    TransactionState txState = ktx.txState();
    long nodeId = commandCreationContext.reserveNode();
    txState.nodeDoCreate(nodeId);
    return nodeId;
}

Example 37 with TransactionState

use of org.neo4j.kernel.api.txstate.TransactionState in project neo4j by neo4j.

the class Operations method indexDoCreate.

private IndexDescriptor indexDoCreate(IndexPrototype prototype) {
    indexProviders.validateIndexPrototype(prototype);
    TransactionState transactionState = ktx.txState();
    long schemaRecordId = commandCreationContext.reserveSchema();
    IndexDescriptor index = prototype.materialise(schemaRecordId);
    index = indexProviders.completeConfiguration(index);
    transactionState.indexDoAdd(index);
    return index;
}

Example 38 with TransactionState

use of org.neo4j.kernel.api.txstate.TransactionState in project neo4j by neo4j.

the class Operations method nodeDelete.

private boolean nodeDelete(long node, boolean lock) {
    ktx.assertOpen();
    if (ktx.hasTxStateWithChanges()) {
        TransactionState state = ktx.txState();
        if (state.nodeIsAddedInThisTx(node)) {
            try {
                singleNode(node);
            } catch (EntityNotFoundException e) {
                throw new IllegalStateException("Node " + node + " was created in this transaction, but was not found when it was about to be deleted");
            }
            updater.onDeleteUncreated(nodeCursor, propertyCursor);
            state.nodeDoDelete(node);
            return true;
        }
        if (state.nodeIsDeletedInThisTx(node)) {
            // already deleted
            return false;
        }
    }
    if (lock) {
        commandCreationContext.acquireNodeDeletionLock(ktx.txState(), ktx.lockClient(), ktx.lockTracer(), node);
    }
    allStoreHolder.singleNode(node, nodeCursor);
    if (nodeCursor.next()) {
        acquireSharedNodeLabelLocks();
        sharedTokenSchemaLock(ResourceTypes.LABEL);
        ktx.securityAuthorizationHandler().assertAllowsDeleteNode(ktx.securityContext(), token::labelGetName, nodeCursor::labels);
        ktx.txState().nodeDoDelete(node);
        return true;
    }
    // tried to delete node that does not exist
    return false;
}