Examples with NodeStore org.neo4j.kernel.impl.store.NodeStore used on opensource projects

Example 41 with NodeStore

use of org.neo4j.kernel.impl.store.NodeStore in project neo4j by neo4j.

the class TransactionRecordStateTest method assertRelationshipGroupsInOrder.

private static void assertRelationshipGroupsInOrder(NeoStores neoStores, long nodeId, int... types) {
    NodeStore nodeStore = neoStores.getNodeStore();
    NodeRecord node = nodeStore.getRecord(nodeId, nodeStore.newRecord(), NORMAL, NULL);
    assertTrue(node.isDense(), "Node should be dense, is " + node);
    long groupId = node.getNextRel();
    int cursor = 0;
    List<RelationshipGroupRecord> seen = new ArrayList<>();
    while (groupId != Record.NO_NEXT_RELATIONSHIP.intValue()) {
        RecordStore<RelationshipGroupRecord> relationshipGroupStore = neoStores.getRelationshipGroupStore();
        RelationshipGroupRecord group = relationshipGroupStore.getRecord(groupId, relationshipGroupStore.newRecord(), NORMAL, NULL);
        seen.add(group);
        assertEquals(types[cursor++], group.getType(), "Invalid type, seen groups so far " + seen);
        groupId = group.getNext();
    }
    assertEquals(types.length, cursor, "Not enough relationship group records found in chain for " + node);
}

Example 42 with NodeStore

use of org.neo4j.kernel.impl.store.NodeStore in project neo4j by neo4j.

the class TransactionRecordStateTest method shouldDeleteEmptyGroupsWhenDeletingNodeAndLastRelationship.

@Test
void shouldDeleteEmptyGroupsWhenDeletingNodeAndLastRelationship() throws Exception {
    // given
    // node --> group A (empty) --> group B (not empty) --> group C (empty)
    // |
    // v
    // relationship
    neoStores = createStores();
    NodeStore nodeStore = neoStores.getNodeStore();
    RelationshipGroupStore groupStore = neoStores.getRelationshipGroupStore();
    RelationshipStore relationshipStore = neoStores.getRelationshipStore();
    long nodeId = nodeStore.nextId(NULL);
    long relationshipId = relationshipStore.nextId(NULL);
    long groupA = groupStore.nextId(NULL);
    long groupB = groupStore.nextId(NULL);
    long groupC = groupStore.nextId(NULL);
    groupStore.updateRecord(new RelationshipGroupRecord(groupA).initialize(true, 0, NULL_REFERENCE.longValue(), NULL_REFERENCE.longValue(), NULL_REFERENCE.longValue(), nodeId, groupB), NULL);
    groupStore.updateRecord(new RelationshipGroupRecord(groupB).initialize(true, 1, NULL_REFERENCE.longValue(), NULL_REFERENCE.longValue(), relationshipId, nodeId, groupC), NULL);
    groupStore.updateRecord(new RelationshipGroupRecord(groupC).initialize(true, 2, NULL_REFERENCE.longValue(), NULL_REFERENCE.longValue(), NULL_REFERENCE.longValue(), nodeId, NULL_REFERENCE.longValue()), NULL);
    relationshipStore.updateRecord(new RelationshipRecord(relationshipId).initialize(true, NO_NEXT_PROPERTY.longValue(), nodeId, nodeId, 1, 1, NULL_REFERENCE.longValue(), 1, NULL_REFERENCE.longValue(), true, true), NULL);
    nodeStore.updateRecord(new NodeRecord(nodeId).initialize(true, NO_NEXT_PROPERTY.longValue(), true, groupA, Record.NO_LABELS_FIELD.longValue()), NULL);
    // when
    TransactionRecordState state = newTransactionRecordState();
    state.relModify(singleDelete(relationship(relationshipId, 1, nodeId, nodeId)));
    state.nodeDelete(nodeId);
    apply(state);
    // then
    assertThat(nodeStore.isInUse(nodeId, NULL)).isFalse();
    assertThat(groupStore.isInUse(groupA, NULL)).isFalse();
    assertThat(groupStore.isInUse(groupB, NULL)).isFalse();
    assertThat(groupStore.isInUse(groupC, NULL)).isFalse();
    assertThat(relationshipStore.isInUse(relationshipId, NULL)).isFalse();
}