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

Example 41 with Statement

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

the class LabelIT method shouldListAllLabels.

@Test
public void shouldListAllLabels() throws Exception {
    // given
    Statement statement = statementInNewTransaction(AnonymousContext.writeToken());
    int label1Id = statement.tokenWriteOperations().labelGetOrCreateForName("label1");
    int label2Id = statement.tokenWriteOperations().labelGetOrCreateForName("label2");
    // when
    Iterator<Token> labelIdsBeforeCommit = statement.readOperations().labelsGetAllTokens();
    // then
    assertThat(asCollection(labelIdsBeforeCommit), hasItems(new Token("label1", label1Id), new Token("label2", label2Id)));
    // when
    commit();
    ReadOperations readOperations = readOperationsInNewTransaction();
    Iterator<Token> labelIdsAfterCommit = readOperations.labelsGetAllTokens();
    // then
    assertThat(asCollection(labelIdsAfterCommit), hasItems(new Token("label1", label1Id), new Token("label2", label2Id)));
}

Example 42 with Statement

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

the class PropertyIT method nodeHasNotPropertyIfUnset.

@Test
public void nodeHasNotPropertyIfUnset() throws Exception {
    // GIVEN
    Statement statement = statementInNewTransaction(AnonymousContext.writeToken());
    long nodeId = statement.dataWriteOperations().nodeCreate();
    // WHEN
    int propertyKeyId = statement.tokenWriteOperations().propertyKeyGetOrCreateForName("clown");
    // THEN
    assertThat(statement.readOperations().nodeHasProperty(nodeId, propertyKeyId), is(false));
    assertThat(statement.readOperations().nodeGetProperty(nodeId, propertyKeyId), nullValue());
    // WHEN
    commit();
    ReadOperations readOperations = readOperationsInNewTransaction();
    // THEN
    assertThat(readOperations.nodeHasProperty(nodeId, propertyKeyId), is(false));
    assertThat(readOperations.nodeGetProperty(nodeId, propertyKeyId), nullValue());
}

Example 43 with Statement

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

the class PropertyIT method nodeHasPropertyIfSet.

@Test
public void nodeHasPropertyIfSet() throws Exception {
    // GIVEN
    Statement statement = statementInNewTransaction(AnonymousContext.writeToken());
    long nodeId = statement.dataWriteOperations().nodeCreate();
    // WHEN
    int propertyKeyId = statement.tokenWriteOperations().propertyKeyGetOrCreateForName("clown");
    statement.dataWriteOperations().nodeSetProperty(nodeId, stringProperty(propertyKeyId, "bozo"));
    // THEN
    assertThat(statement.readOperations().nodeHasProperty(nodeId, propertyKeyId), is(true));
    assertThat(statement.readOperations().nodeGetProperty(nodeId, propertyKeyId), notNullValue());
    // WHEN
    commit();
    ReadOperations readOperations = readOperationsInNewTransaction();
    // THEN
    assertThat(readOperations.nodeHasProperty(nodeId, propertyKeyId), is(true));
    assertThat(readOperations.nodeGetProperty(nodeId, propertyKeyId), notNullValue());
}

Example 44 with Statement

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

the class PropertyIT method shouldSetNodePropertyValue.

@Test
public void shouldSetNodePropertyValue() throws Exception {
    // GIVEN
    String value = "bozo";
    Statement statement = statementInNewTransaction(AnonymousContext.writeToken());
    long nodeId = statement.dataWriteOperations().nodeCreate();
    // WHEN
    int propertyKeyId = statement.tokenWriteOperations().propertyKeyGetOrCreateForName("clown");
    statement.dataWriteOperations().nodeSetProperty(nodeId, stringProperty(propertyKeyId, value));
    // THEN
    assertEquals(value, statement.readOperations().nodeGetProperty(nodeId, propertyKeyId));
    // WHEN
    commit();
    ReadOperations readOperations = readOperationsInNewTransaction();
    // THEN
    assertEquals(value, readOperations.nodeGetProperty(nodeId, propertyKeyId));
}

Example 45 with Statement

use of org.neo4j.kernel.api.Statement 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());
}