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

Example 6 with ReadOperations

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

the class BuiltInProcedures method listConstraints.

@Description("List all constraints in the database.")
@Procedure(name = "db.constraints", mode = READ)
public Stream<ConstraintResult> listConstraints() {
    Statement statement = tx.acquireStatement();
    ReadOperations operations = statement.readOperations();
    TokenNameLookup tokens = new StatementTokenNameLookup(operations);
    return asList(operations.constraintsGetAll()).stream().map((constraint) -> constraint.prettyPrint(tokens)).sorted().map(ConstraintResult::new).onClose(statement::close);
}

Example 7 with ReadOperations

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

the class IndexIT method shouldNotListConstraintIndexesAmongIndexes.

@Test
public void shouldNotListConstraintIndexesAmongIndexes() throws Exception {
    // given
    SchemaWriteOperations schemaWriteOperations = schemaWriteOperationsInNewTransaction();
    schemaWriteOperations.uniquePropertyConstraintCreate(SchemaBoundary.map(descriptor));
    commit();
    // then/when
    ReadOperations readOperations = readOperationsInNewTransaction();
    assertFalse(readOperations.indexesGetAll().hasNext());
    assertFalse(readOperations.indexesGetForLabel(labelId).hasNext());
}

Example 8 with ReadOperations

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

the class IndexIT method shouldNotListIndexesAmongConstraintIndexes.

@Test
public void shouldNotListIndexesAmongConstraintIndexes() throws Exception {
    // given
    SchemaWriteOperations schemaWriteOperations = schemaWriteOperationsInNewTransaction();
    schemaWriteOperations.indexCreate(SchemaBoundary.map(descriptor));
    commit();
    // then/when
    ReadOperations readOperations = readOperationsInNewTransaction();
    assertFalse(readOperations.uniqueIndexesGetAll().hasNext());
    assertFalse(readOperations.uniqueIndexesGetForLabel(labelId).hasNext());
}

Example 9 with ReadOperations

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

the class IndexIT method rollBackIndexRuleShouldNotBeCommitted.

@Test
public void rollBackIndexRuleShouldNotBeCommitted() throws Exception {
    // GIVEN
    SchemaWriteOperations schemaWriteOperations = schemaWriteOperationsInNewTransaction();
    // WHEN
    schemaWriteOperations.indexCreate(SchemaBoundary.map(descriptor));
    // don't mark as success
    rollback();
    // THEN
    ReadOperations readOperations = readOperationsInNewTransaction();
    assertEquals(emptySetOf(NewIndexDescriptor.class), asSet(readOperations.indexesGetForLabel(labelId)));
    commit();
}

Example 10 with ReadOperations

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

the class IndexIT method shouldRemoveAConstraintIndexWithoutOwnerInRecovery.

@Test
public void shouldRemoveAConstraintIndexWithoutOwnerInRecovery() throws Exception {
    // given
    PropertyAccessor propertyAccessor = mock(PropertyAccessor.class);
    ConstraintIndexCreator creator = new ConstraintIndexCreator(() -> kernel, indexingService, propertyAccessor, false);
    creator.createConstraintIndex(SchemaBoundary.map(descriptor));
    // when
    restartDb();
    // then
    ReadOperations readOperations = readOperationsInNewTransaction();
    assertEquals(emptySetOf(NewIndexDescriptor.class), asSet(readOperations.indexesGetForLabel(labelId)));
    commit();
}