/// <summary>
/// Serialize the provided ConstraintRule onto the target buffer </summary>
/// <param name="constraintRule"> the ConstraintRule to serialize </param>
/// <exception cref="IllegalStateException"> if the ConstraintRule is of type unique, but the owned index has not been set </exception>
public static sbyte[] Serialize(ConstraintRule constraintRule)
{
ByteBuffer target = ByteBuffer.allocate(LengthOf(constraintRule));
target.putInt(LEGACY_LABEL_OR_REL_TYPE_ID);
target.put(CONSTRAINT_RULE);
ConstraintDescriptor constraintDescriptor = constraintRule.ConstraintDescriptor;
switch (constraintDescriptor.Type())
{
case EXISTS:
target.put(EXISTS_CONSTRAINT);
break;
case UNIQUE:
target.put(UNIQUE_CONSTRAINT);
target.putLong(constraintRule.OwnedIndex);
break;
case UNIQUE_EXISTS:
target.put(UNIQUE_EXISTS_CONSTRAINT);
target.putLong(constraintRule.OwnedIndex);
break;
default:
throw new System.NotSupportedException(format("Got unknown index descriptor type '%s'.", constraintDescriptor.Type()));
}
constraintDescriptor.Schema().processWith(new SchemaDescriptorSerializer(target));
UTF8.putEncodedStringInto(constraintRule.Name, target);
return(target.array());
}
internal ConstraintRule(long id, ConstraintDescriptor descriptor, long?ownedIndex, string name)
{
this._id = id;
this._descriptor = descriptor;
this._ownedIndex = ownedIndex;
this._name = SchemaRule.nameOrDefault(name, "constraint_" + id);
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
//ORIGINAL LINE: private void dropConstraint(org.neo4j.internal.kernel.api.schema.constraints.ConstraintDescriptor descriptor) throws org.neo4j.internal.kernel.api.exceptions.KernelException
private void DropConstraint(ConstraintDescriptor descriptor)
{
using (Transaction transaction = _kernel.beginTransaction(@implicit, AUTH_DISABLED))
{
transaction.SchemaWrite().constraintDrop(descriptor);
transaction.Success();
}
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
//ORIGINAL LINE: private org.neo4j.internal.kernel.api.schema.constraints.ConstraintDescriptor createConstraint() throws org.neo4j.internal.kernel.api.exceptions.KernelException
private ConstraintDescriptor CreateConstraint()
{
using (Transaction transaction = _kernel.beginTransaction(@implicit, AUTH_DISABLED))
{
ConstraintDescriptor descriptor = transaction.SchemaWrite().uniquePropertyConstraintCreate(SchemaDescriptorFactory.forLabel(1, 1));
transaction.Success();
return(descriptor);
}
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldInvalidateSchemaStateOnDropConstraint() throws Exception
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void ShouldInvalidateSchemaStateOnDropConstraint()
{
// given
ConstraintDescriptor descriptor = CreateConstraint();
CommitToSchemaState("test", "before");
DropConstraint(descriptor);
// when
string after = CommitToSchemaState("test", "after");
// then
assertEquals("after", after);
}
public override ConstraintDescriptor ReadConstraint(ConstraintRule rule)
{
ConstraintDescriptor desc = rule.ConstraintDescriptor;
switch (desc.Type())
{
case EXISTS:
return(ReadNonStandardConstraint(rule, ERROR_MESSAGE_EXISTS));
case UNIQUE_EXISTS:
return(ReadNonStandardConstraint(rule, ERROR_MESSAGE_NODE_KEY));
default:
return(desc);
}
}
/// <summary>
/// Compute the byte size needed to serialize the provided ConstraintRule using serialize. </summary>
/// <param name="constraintRule"> the ConstraintRule </param>
/// <returns> the byte size of ConstraintRule </returns>
internal static int LengthOf(ConstraintRule constraintRule)
{
int length = 4; // legacy label or relType id
length += 1; // schema rule type
length += 1; // constraint type
ConstraintDescriptor constraintDescriptor = constraintRule.ConstraintDescriptor;
if (constraintDescriptor.EnforcesUniqueness())
{
length += 8; // owned index id
}
length += constraintDescriptor.Schema().computeWith(schemaSizeComputer);
length += UTF8.computeRequiredByteBufferSize(constraintRule.Name);
return(length);
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void visitsUniqueConstraintsAndIndices() throws Exception
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void VisitsUniqueConstraintsAndIndices()
{
DbStructureVisitor visitor = mock(typeof(DbStructureVisitor));
int labelId = CreateLabel("Person");
int pkId = CreatePropertyKey("name");
CommitAndReOpen();
ConstraintDescriptor constraint = CreateUniqueConstraint(labelId, pkId);
IndexDescriptor descriptor = TestIndexDescriptorFactory.uniqueForLabel(labelId, pkId);
// WHEN
Accept(visitor);
// THEN
verify(visitor).visitIndex(descriptor, ":Person(name)", 1.0d, 0L);
verify(visitor).visitUniqueConstraint(( UniquenessConstraintDescriptor )constraint, "CONSTRAINT ON ( person:Person ) ASSERT person.name IS " + "UNIQUE");
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
//ORIGINAL LINE: private void assertParseRelationshipPropertyExistsRule(String serialized, String name) throws Exception
private void AssertParseRelationshipPropertyExistsRule(string serialized, string name)
{
// GIVEN
long ruleId = 51;
int propertyKey = 6119;
int relTypeId = 8512;
ConstraintDescriptor constraint = ConstraintDescriptorFactory.existsForRelType(relTypeId, propertyKey);
sbyte[] bytes = DecodeBase64(serialized);
// WHEN
ConstraintRule deserialized = AssertConstraintRule(SchemaRuleSerialization.Deserialize(ruleId, ByteBuffer.wrap(bytes)));
// THEN
assertThat(deserialized.Id, equalTo(ruleId));
assertThat(deserialized.ConstraintDescriptor, equalTo(constraint));
assertThat(deserialized.Schema(), equalTo(constraint.Schema()));
assertException(deserialized.getOwnedIndex, typeof(System.InvalidOperationException));
assertThat(deserialized.Name, @is(name));
}
public NoSuchConstraintException(ConstraintDescriptor constraint) : base(org.neo4j.kernel.api.exceptions.Status_Schema.ConstraintNotFound, format(MESSAGE, constraint))
{
this._constraint = constraint;
}
public override ConstraintRule CreateExistenceConstraint(long ruleId, ConstraintDescriptor descriptor)
{
return(ConstraintRule.constraintRule(ruleId, descriptor));
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
//ORIGINAL LINE: public org.neo4j.kernel.impl.store.record.ConstraintRule createExistenceConstraint(long ruleId, org.neo4j.internal.kernel.api.schema.constraints.ConstraintDescriptor descriptor) throws org.neo4j.internal.kernel.api.exceptions.schema.CreateConstraintFailureException
public override ConstraintRule CreateExistenceConstraint(long ruleId, ConstraintDescriptor descriptor)
{
throw PropertyExistenceConstraintsNotAllowed(descriptor.Schema());
}
public abstract bool ConstraintExists(Org.Neo4j.@internal.Kernel.Api.schema.constraints.ConstraintDescriptor descriptor);
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
//ORIGINAL LINE: public abstract org.neo4j.kernel.impl.store.record.ConstraintRule createExistenceConstraint(long ruleId, org.neo4j.internal.kernel.api.schema.constraints.ConstraintDescriptor descriptor) throws org.neo4j.internal.kernel.api.exceptions.schema.CreateConstraintFailureException;
public abstract ConstraintRule CreateExistenceConstraint(long ruleId, ConstraintDescriptor descriptor);
//JAVA TO C# CONVERTER NOTE: Members cannot have the same name as their enclosing type:
public static ConstraintRule ConstraintRuleConflict(long id, ConstraintDescriptor descriptor, string name)
{
return(new ConstraintRule(id, descriptor, null, name));
}
private static string ConstructUserMessage(OperationContext context, TokenNameLookup tokenNameLookup, ConstraintDescriptor constraint)
{
switch (context)
{
case SchemaKernelException.OperationContext.INDEX_CREATION:
return(MessageWithLabelAndPropertyName(tokenNameLookup, _indexContextFormat, constraint.Schema()));
case SchemaKernelException.OperationContext.CONSTRAINT_CREATION:
return(ALREADY_CONSTRAINED_MESSAGE_PREFIX + constraint.PrettyPrint(tokenNameLookup));
default:
return(format(NO_CONTEXT_FORMAT, constraint));
}
}
public AlreadyConstrainedException(ConstraintDescriptor constraint, OperationContext context, TokenNameLookup tokenNameLookup) : base(org.neo4j.kernel.api.exceptions.Status_Schema.ConstraintAlreadyExists, ConstructUserMessage(context, tokenNameLookup, constraint))
{
this._constraint = constraint;
this._context = context;
}
internal ConstraintRule(long id, ConstraintDescriptor descriptor, long?ownedIndex) : this(id, descriptor, ownedIndex, null)
{
}