Examples with RelationshipEntity org.neo4j.kernel.impl.core.RelationshipEntity used on opensource projects

Example 1 with RelationshipEntity

use of org.neo4j.kernel.impl.core.RelationshipEntity in project neo4j by neo4j.

the class RelationshipEntityWrappingValue method properties.

public MapValue properties(PropertyCursor propertyCursor) {
    MapValue m = properties;
    if (m == null) {
        try {
            synchronized (this) {
                m = properties;
                if (m == null) {
                    var relProperties = relationship instanceof RelationshipEntity ? ((RelationshipEntity) relationship).getAllProperties(propertyCursor) : relationship.getAllProperties();
                    m = properties = ValueUtils.asMapValue(relProperties);
                }
            }
        } catch (NotFoundException | IllegalStateException e) {
            throw new ReadAndDeleteTransactionConflictException(RelationshipEntity.isDeletedInCurrentTransaction(relationship), e);
        }
    }
    return m;
}

Example 2 with RelationshipEntity

use of org.neo4j.kernel.impl.core.RelationshipEntity in project neo4j by neo4j.

the class RelationshipEntityWrappingValue method writeTo.

@Override
public <E extends Exception> void writeTo(AnyValueWriter<E> writer) throws E {
    if (writer.entityMode() == REFERENCE) {
        writer.writeRelationshipReference(id());
    } else {
        if (relationship instanceof RelationshipEntity) {
            RelationshipEntity proxy = (RelationshipEntity) relationship;
            if (!proxy.initializeData()) {
                // and that they need to retry it.
                throw new ReadAndDeleteTransactionConflictException(RelationshipEntity.isDeletedInCurrentTransaction(relationship));
            }
        }
        MapValue p;
        try {
            p = properties();
        } catch (ReadAndDeleteTransactionConflictException e) {
            if (!e.wasDeletedInThisTransaction()) {
                throw e;
            }
            // If it isn't a transient error then the relationship was deleted in the current transaction and we should write an 'empty' relationship.
            p = VirtualValues.EMPTY_MAP;
        }
        if (id() < 0) {
            writer.writeVirtualRelationshipHack(relationship);
        }
        writer.writeRelationship(id(), startNode().id(), endNode().id(), type(), p);
    }
}

Example 3 with RelationshipEntity

use of org.neo4j.kernel.impl.core.RelationshipEntity in project neo4j by neo4j.

the class RelationshipEntityWrappingValue method populate.

public void populate() {
    try {
        if (relationship instanceof RelationshipEntity) {
            RelationshipEntity proxy = (RelationshipEntity) relationship;
            if (!proxy.initializeData()) {
                // transaction.
                return;
            }
        }
        type();
        properties();
        startNode();
        endNode();
    } catch (NotFoundException | ReadAndDeleteTransactionConflictException e) {
    // best effort, cannot do more
    }
}

Example 4 with RelationshipEntity

use of org.neo4j.kernel.impl.core.RelationshipEntity in project neo4j by neo4j.

the class RelationshipEntityWrappingValue method populate.

public void populate(RelationshipScanCursor relCursor, PropertyCursor propertyCursor) {
    try {
        if (relationship instanceof RelationshipEntity) {
            RelationshipEntity proxy = (RelationshipEntity) relationship;
            if (!proxy.initializeData(relCursor)) {
                // transaction.
                return;
            }
        }
        // type, startNode and endNode will have counted their DB hits as part of initializeData.
        type();
        properties(propertyCursor);
        startNode();
        endNode();
    } catch (NotFoundException | ReadAndDeleteTransactionConflictException e) {
    // best effort, cannot do more
    }
}

Example 5 with RelationshipEntity

use of org.neo4j.kernel.impl.core.RelationshipEntity in project neo4j by neo4j.

the class TxStateTransactionDataSnapshot method relationship.

private Relationship relationship(long relId) {
    RelationshipEntity relationship = (RelationshipEntity) internalTransaction.newRelationshipEntity(relId);
    if (!state.relationshipVisit(relId, relationship)) {
        // This relationship has been created or changed in this transaction
        RelationshipEntity cached = relationshipsReadFromStore.get(relId);
        if (cached != null) {
            return cached;
        }
        // Get this relationship data from the store
        this.relationship.single(relId);
        if (!this.relationship.next()) {
            throw new IllegalStateException("Getting deleted relationship data should have been covered by the tx state");
        }
        relationship.visit(relId, this.relationship.type(), this.relationship.sourceNodeReference(), this.relationship.targetNodeReference());
        memoryTracker.allocateHeap(RelationshipEntity.SHALLOW_SIZE);
        relationshipsReadFromStore.put(relId, relationship);
    }
    return relationship;
}