How to use

ObjectSqlType

in

org.apache.calcite.sql.type

/**
 * Constructs an object type. This should only be called from a factory
 * method.
 *
 * @param typeName      SqlTypeName for this type (either Distinct or
 *                      Structured)
 * @param sqlIdentifier identifier for this type
 * @param nullable      whether type accepts nulls
 * @param fields        object attribute definitions
 */
public ObjectSqlType(
  SqlTypeName typeName,
  SqlIdentifier sqlIdentifier,
  boolean nullable,
  List<? extends RelDataTypeField> fields,
  RelDataTypeComparability comparability) {
 super(typeName, nullable, fields);
 this.sqlIdentifier = sqlIdentifier;
 this.comparability = comparability;
 computeDigest();
}

protected RelDataType canonize(RelDataType type) {
 type = super.canonize(type);
 if (!(type instanceof ObjectSqlType)) {
  return type;
 }
 ObjectSqlType objectType = (ObjectSqlType) type;
 if (!objectType.isNullable()) {
  objectType.setFamily(objectType);
 } else {
  objectType.setFamily(
    (RelDataTypeFamily) createTypeWithNullability(
      objectType,
      false));
 }
 return type;
}

private RelDataType copyObjectType(RelDataType type, boolean nullable) {
 return new ObjectSqlType(
   type.getSqlTypeName(),
   type.getSqlIdentifier(),
   nullable,
   type.getFieldList(),
   type.getComparability());
}

@Override public RelDataType getNamedType(SqlIdentifier typeName) {
 if (typeName.equalsDeep(fixture.addressType.getSqlIdentifier(), Litmus.IGNORE)) {
  return fixture.addressType;
 } else {
  return super.getNamedType(typeName);
 }
}

private RelDataType copyObjectType(RelDataType type, boolean nullable) {
 return new ObjectSqlType(
   type.getSqlTypeName(),
   type.getSqlIdentifier(),
   nullable,
   type.getFieldList(),
   type.getComparability());
}

@Override public RelDataType getNamedType(SqlIdentifier typeName) {
 if (typeName.equalsDeep(fixture.addressType.getSqlIdentifier(), Litmus.IGNORE)) {
  return fixture.addressType;
 } else {
  return super.getNamedType(typeName);
 }
}

  typeFactory.createArrayType(empRecordType, -1);
addressType =
  new ObjectSqlType(SqlTypeName.STRUCTURED,
    new SqlIdentifier("ADDRESS", SqlParserPos.ZERO),
    false,

protected RelDataType canonize(RelDataType type) {
 type = super.canonize(type);
 if (!(type instanceof ObjectSqlType)) {
  return type;
 }
 ObjectSqlType objectType = (ObjectSqlType) type;
 if (!objectType.isNullable()) {
  objectType.setFamily(objectType);
 } else {
  objectType.setFamily(
    (RelDataTypeFamily) createTypeWithNullability(
      objectType,
      false));
 }
 return type;
}

/**
 * Constructs an object type. This should only be called from a factory
 * method.
 *
 * @param typeName      SqlTypeName for this type (either Distinct or
 *                      Structured)
 * @param sqlIdentifier identifier for this type
 * @param nullable      whether type accepts nulls
 * @param fields        object attribute definitions
 */
public ObjectSqlType(
  SqlTypeName typeName,
  SqlIdentifier sqlIdentifier,
  boolean nullable,
  List<? extends RelDataTypeField> fields,
  RelDataTypeComparability comparability) {
 super(typeName, nullable, fields);
 this.sqlIdentifier = sqlIdentifier;
 this.comparability = comparability;
 computeDigest();
}

  typeFactory.createArrayType(empRecordType, -1);
addressType =
  new ObjectSqlType(SqlTypeName.STRUCTURED,
    new SqlIdentifier("ADDRESS", SqlParserPos.ZERO),
    false,