org.apache.calcite.rel.type.RelDataTypeFactory.createMultisetType java code examples

Common ways to obtain RelDataTypeFactory

private void myMethod () {
 RelDataTypeFactory r =RexBuilder rexBuilder;rexBuilder.getTypeFactory()
SqlOperatorBinding opBinding;opBinding.getTypeFactory()
RelOptCluster cluster;cluster.getTypeFactory()
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}

public static RelDataType createMultisetType(
  RelDataTypeFactory typeFactory,
  RelDataType type,
  boolean nullable) {
 RelDataType ret = typeFactory.createMultisetType(type, -1);
 return typeFactory.createTypeWithNullability(ret, nullable);
}

public static RelDataType createMultisetType(
  RelDataTypeFactory typeFactory,
  RelDataType type,
  boolean nullable) {
 RelDataType ret = typeFactory.createMultisetType(type, -1);
 return typeFactory.createTypeWithNullability(ret, nullable);
}

public static RelDataType createMultisetType(
    RelDataTypeFactory typeFactory,
    RelDataType type,
    boolean nullable) {
  RelDataType ret = typeFactory.createMultisetType(type, -1);
  return typeFactory.createTypeWithNullability(ret, nullable);
}

protected RelDataType convertToStruct(RelDataType type) {
 // "MULTISET [<expr>, ...]" needs to be wrapped in a record if
 // <expr> has a scalar type.
 // For example, "MULTISET [8, 9]" has type
 // "RECORD(INTEGER EXPR$0 NOT NULL) NOT NULL MULTISET NOT NULL".
 final RelDataType componentType = type.getComponentType();
 if (componentType == null || componentType.isStruct()) {
  return type;
 }
 final RelDataTypeFactory typeFactory = validator.getTypeFactory();
 final RelDataType structType = toStruct(componentType, getNode());
 final RelDataType collectionType;
 switch (type.getSqlTypeName()) {
 case ARRAY:
  collectionType = typeFactory.createArrayType(structType, -1);
  break;
 case MULTISET:
  collectionType = typeFactory.createMultisetType(structType, -1);
  break;
 default:
  throw new AssertionError(type);
 }
 return typeFactory.createTypeWithNullability(collectionType,
   type.isNullable());
}

protected RelDataType convertToStruct(RelDataType type) {
 // "MULTISET [<expr>, ...]" needs to be wrapped in a record if
 // <expr> has a scalar type.
 // For example, "MULTISET [8, 9]" has type
 // "RECORD(INTEGER EXPR$0 NOT NULL) NOT NULL MULTISET NOT NULL".
 final RelDataType componentType = type.getComponentType();
 if (componentType == null || componentType.isStruct()) {
  return type;
 }
 final RelDataTypeFactory typeFactory = validator.getTypeFactory();
 final RelDataType structType = toStruct(componentType, getNode());
 final RelDataType collectionType;
 switch (type.getSqlTypeName()) {
 case ARRAY:
  collectionType = typeFactory.createArrayType(structType, -1);
  break;
 case MULTISET:
  collectionType = typeFactory.createMultisetType(structType, -1);
  break;
 default:
  throw new AssertionError(type);
 }
 return typeFactory.createTypeWithNullability(collectionType,
   type.isNullable());
}

typeFactory.createMultisetType(
    flattenRecordType(
        typeFactory,

type = typeFactory.createMultisetType(type, -1);
break;

type = typeFactory.createMultisetType(type, -1);
break;

typeFactory.createMultisetType(
  flattenRecordType(
    typeFactory,

typeFactory.createMultisetType(
  flattenRecordType(
    typeFactory,

  componentType.isNullable());
boolean isn = type.isNullable();
type = typeFactory.createMultisetType(tt, -1);
type = typeFactory.createTypeWithNullability(type, isn);

  componentType.isNullable());
boolean isn = type.isNullable();
type = typeFactory.createMultisetType(tt, -1);
type = typeFactory.createTypeWithNullability(type, isn);

@Test public void testTypeDump() {
 RelDataTypeFactory typeFactory =
   new SqlTypeFactoryImpl(RelDataTypeSystem.DEFAULT);
 RelDataType t1 =
   typeFactory.builder()
     .add("f0", SqlTypeName.DECIMAL, 5, 2)
     .add("f1", SqlTypeName.VARCHAR, 10)
     .build();
 TestUtil.assertEqualsVerbose(
   TestUtil.fold(
     "f0 DECIMAL(5, 2) NOT NULL,",
     "f1 VARCHAR(10) CHARACTER SET \"ISO-8859-1\" COLLATE \"ISO-8859-1$en_US$primary\" NOT NULL"),
   Util.toLinux(RelOptUtil.dumpType(t1) + "\n"));
 RelDataType t2 =
   typeFactory.builder()
     .add("f0", t1)
     .add("f1", typeFactory.createMultisetType(t1, -1))
     .build();
 TestUtil.assertEqualsVerbose(
   TestUtil.fold(
     "f0 RECORD (",
     "  f0 DECIMAL(5, 2) NOT NULL,",
     "  f1 VARCHAR(10) CHARACTER SET \"ISO-8859-1\" COLLATE \"ISO-8859-1$en_US$primary\" NOT NULL) NOT NULL,",
     "f1 RECORD (",
     "  f0 DECIMAL(5, 2) NOT NULL,",
     "  f1 VARCHAR(10) CHARACTER SET \"ISO-8859-1\" COLLATE \"ISO-8859-1$en_US$primary\" NOT NULL) NOT NULL MULTISET NOT NULL"),
   Util.toLinux(RelOptUtil.dumpType(t2) + "\n"));
}

@Test public void testTypeDump() {
 RelDataTypeFactory typeFactory =
   new SqlTypeFactoryImpl(RelDataTypeSystem.DEFAULT);
 RelDataType t1 =
   typeFactory.builder()
     .add("f0", SqlTypeName.DECIMAL, 5, 2)
     .add("f1", SqlTypeName.VARCHAR, 10)
     .build();
 TestUtil.assertEqualsVerbose(
   TestUtil.fold(
     "f0 DECIMAL(5, 2) NOT NULL,",
     "f1 VARCHAR(10) CHARACTER SET \"ISO-8859-1\" COLLATE \"ISO-8859-1$en_US$primary\" NOT NULL"),
   Util.toLinux(RelOptUtil.dumpType(t1) + "\n"));
 RelDataType t2 =
   typeFactory.builder()
     .add("f0", t1)
     .add("f1", typeFactory.createMultisetType(t1, -1))
     .build();
 TestUtil.assertEqualsVerbose(
   TestUtil.fold(
     "f0 RECORD (",
     "  f0 DECIMAL(5, 2) NOT NULL,",
     "  f1 VARCHAR(10) CHARACTER SET \"ISO-8859-1\" COLLATE \"ISO-8859-1$en_US$primary\" NOT NULL) NOT NULL,",
     "f1 RECORD (",
     "  f0 DECIMAL(5, 2) NOT NULL,",
     "  f1 VARCHAR(10) CHARACTER SET \"ISO-8859-1\" COLLATE \"ISO-8859-1$en_US$primary\" NOT NULL) NOT NULL MULTISET NOT NULL"),
   Util.toLinux(RelOptUtil.dumpType(t2) + "\n"));
}

Javadoc

Creates a multiset type. Multisets are unordered collections of elements.

Popular methods of RelDataTypeFactory

createSqlType
Creates a SQL type with precision and scale.
createTypeWithNullability
Creates a type that is the same as another type but with possibly different nullability. The output
createStructType
Creates a type that represents a structured collection of fields, given lists of the names and types
builder
Creates a org.apache.calcite.rel.type.RelDataTypeFactory.FieldInfoBuilder. But since FieldInfoBuilde
createMapType
Creates a map type. Maps are unordered collections of key/value pairs.
getTypeSystem
Returns the type system.
createArrayType
Creates an array type. Arrays are ordered collections of elements.
createJavaType
Creates a type that corresponds to a Java class.
createSqlIntervalType
Creates a SQL interval type.
createTypeWithCharsetAndCollation
Creates a type that is the same as another type but with possibly different charset or collation. Fo
leastRestrictive
Returns the most general of a set of types (that is, one type to which they can all be cast), or nul
copyType
Duplicates a type, making a deep copy. Normally, this is a no-op, since canonical type objects are r

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How to use createMultisetTypemethodin org.apache.calcite.rel.type.RelDataTypeFactory

Best Java code snippets using org.apache.calcite.rel.type.RelDataTypeFactory.createMultisetType (Showing top 14 results out of 315)

How to use
createMultisetType
method
in
org.apache.calcite.rel.type.RelDataTypeFactory