Examples with PropertyCursor org.neo4j.internal.kernel.api.PropertyCursor used on opensource projects

Example 31 with PropertyCursor

use of org.neo4j.internal.kernel.api.PropertyCursor in project neo4j by neo4j.

the class DefaultPooledCursorsTestBase method shouldReusePropertyCursor.

@Test
void shouldReusePropertyCursor() {
    NodeCursor node = cursors.allocateNodeCursor(NULL);
    PropertyCursor c1 = cursors.allocatePropertyCursor(NULL, INSTANCE);
    read.singleNode(propNode, node);
    node.next();
    node.properties(c1);
    node.close();
    c1.close();
    PropertyCursor c2 = cursors.allocatePropertyCursor(NULL, INSTANCE);
    assertThat(c1).isSameAs(c2);
    c2.close();
}

Example 32 with PropertyCursor

use of org.neo4j.internal.kernel.api.PropertyCursor in project neo4j by neo4j.

the class NodeTransactionStateTestBase method hasPropertiesShouldSeeNewlyCreatedProperties.

@Test
void hasPropertiesShouldSeeNewlyCreatedProperties() throws Exception {
    // Given
    long node;
    try (KernelTransaction tx = beginTransaction()) {
        node = tx.dataWrite().nodeCreate();
        tx.commit();
    }
    // Then
    try (KernelTransaction tx = beginTransaction()) {
        try (NodeCursor cursor = tx.cursors().allocateNodeCursor(tx.cursorContext());
            PropertyCursor props = tx.cursors().allocatePropertyCursor(tx.cursorContext(), tx.memoryTracker())) {
            tx.dataRead().singleNode(node, cursor);
            assertTrue(cursor.next());
            assertFalse(hasProperties(cursor, props));
            tx.dataWrite().nodeSetProperty(node, tx.tokenWrite().propertyKeyGetOrCreateForName("prop"), stringValue("foo"));
            assertTrue(hasProperties(cursor, props));
        }
    }
}

Example 33 with PropertyCursor

use of org.neo4j.internal.kernel.api.PropertyCursor in project neo4j by neo4j.

the class NodeTransactionStateTestBase method shouldSeeRemovedThenAddedPropertyInTransaction.

@Test
void shouldSeeRemovedThenAddedPropertyInTransaction() throws Exception {
    // Given
    long nodeId;
    String propKey = "prop1";
    int propToken;
    try (KernelTransaction tx = beginTransaction()) {
        nodeId = tx.dataWrite().nodeCreate();
        propToken = tx.token().propertyKeyGetOrCreateForName(propKey);
        assertEquals(NO_VALUE, tx.dataWrite().nodeSetProperty(nodeId, propToken, stringValue("hello")));
        tx.commit();
    }
    // When/Then
    try (KernelTransaction tx = beginTransaction()) {
        assertEquals(tx.dataWrite().nodeRemoveProperty(nodeId, propToken), stringValue("hello"));
        assertEquals(NO_VALUE, tx.dataWrite().nodeSetProperty(nodeId, propToken, stringValue("world")));
        try (NodeCursor node = tx.cursors().allocateNodeCursor(tx.cursorContext());
            PropertyCursor property = tx.cursors().allocatePropertyCursor(tx.cursorContext(), tx.memoryTracker())) {
            tx.dataRead().singleNode(nodeId, node);
            assertTrue(node.next(), "should access node");
            node.properties(property);
            assertTrue(property.next());
            assertEquals(propToken, property.propertyKey());
            assertEquals(property.propertyValue(), stringValue("world"));
            assertFalse(property.next(), "should not find any properties");
            assertFalse(node.next(), "should only find one node");
        }
        tx.commit();
    }
    try (org.neo4j.graphdb.Transaction tx = graphDb.beginTx()) {
        assertThat(tx.getNodeById(nodeId).getProperty(propKey)).isEqualTo("world");
    }
}

Example 34 with PropertyCursor

use of org.neo4j.internal.kernel.api.PropertyCursor in project neo4j by neo4j.

the class ManagedTestCursors method allocateFullAccessPropertyCursor.

@Override
public PropertyCursor allocateFullAccessPropertyCursor(CursorContext cursorContext, MemoryTracker memoryTracker) {
    PropertyCursor n = cursors.allocateFullAccessPropertyCursor(cursorContext, memoryTracker);
    allCursors.add(n);
    return n;
}

Example 35 with PropertyCursor

use of org.neo4j.internal.kernel.api.PropertyCursor in project neo4j by neo4j.

the class ManagedTestCursors method allocatePropertyCursor.

@Override
public PropertyCursor allocatePropertyCursor(CursorContext cursorContext, MemoryTracker memoryTracker) {
    PropertyCursor n = cursors.allocatePropertyCursor(cursorContext, memoryTracker);
    allCursors.add(n);
    return n;
}