org.apache.calcite.jdbc

Class JavaTypeFactoryImpl

java.lang.Object

org.apache.calcite.rel.type.RelDataTypeFactoryImpl

org.apache.calcite.sql.type.SqlTypeFactoryImpl

org.apache.calcite.jdbc.JavaTypeFactoryImpl

All Implemented Interfaces:

JavaTypeFactory, RelDataTypeFactory

public class JavaTypeFactoryImpl
extends SqlTypeFactoryImpl
implements JavaTypeFactory

Implementation of JavaTypeFactory.

NOTE: This class is experimental and subject to change/removal without notice.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
private static class	JavaTypeFactoryImpl.RecordFieldImpl Implementation of a field.
static class	JavaTypeFactoryImpl.SyntheticRecordType Synthetic record type.

Nested classes/interfaces inherited from class org.apache.calcite.rel.type.RelDataTypeFactoryImpl

RelDataTypeFactoryImpl.JavaType

Nested classes/interfaces inherited from interface org.apache.calcite.rel.type.RelDataTypeFactory

RelDataTypeFactory.Builder, RelDataTypeFactory.FieldInfo, RelDataTypeFactory.FieldInfoBuilder

Field Summary

Fields

Modifier and Type	Field and Description
private Map<List<Pair<Type,Boolean>>,JavaTypeFactoryImpl.SyntheticRecordType>	syntheticTypes

Fields inherited from class org.apache.calcite.rel.type.RelDataTypeFactoryImpl

typeSystem

Constructor Summary

Constructors

Constructor and Description
JavaTypeFactoryImpl()
JavaTypeFactoryImpl(RelDataTypeSystem typeSystem)

Method Summary

Modifier and Type	Method and Description
RelDataType	createStructType(Class type) Creates a record type based upon the public fields of a Java class.
Type	createSyntheticType(List<Type> types) Creates a synthetic Java class whose fields have the given Java types.
private Type	createSyntheticType(RelRecordType type) Creates a synthetic Java class whose fields have the same names and relational types.
RelDataType	createType(Type type) Creates a type, deducing whether a record, scalar or primitive type is needed.
private Type	fieldType(Field field) Returns the type of a field.
Type	getJavaClass(RelDataType type)
private JavaTypeFactoryImpl.SyntheticRecordType	register(JavaTypeFactoryImpl.SyntheticRecordType syntheticType)
RelDataType	toSql(RelDataType type) Converts a type in Java format to a SQL-oriented type.
static RelDataType	toSql(RelDataTypeFactory typeFactory, RelDataType type) Converts a type in Java format to a SQL-oriented type.

Methods inherited from class org.apache.calcite.sql.type.SqlTypeFactoryImpl

canonize, createArrayType, createMapType, createMultisetType, createSqlIntervalType, createSqlType, createSqlType, createSqlType, createTypeWithCharsetAndCollation, createTypeWithNullability, createUnknownType, leastRestrictive, shouldRaggedFixedLengthValueUnionBeVariable

Methods inherited from class org.apache.calcite.rel.type.RelDataTypeFactoryImpl

builder, canonize, copyType, createDecimalProduct, createDecimalQuotient, createJavaType, createJoinType, createStructType, createStructType, createStructType, createStructType, getDefaultCharset, getTypeSystem, isJavaType, leastRestrictiveStructuredType, useDoubleMultiplication

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.calcite.rel.type.RelDataTypeFactory

builder, copyType, createArrayType, createDecimalProduct, createDecimalQuotient, createJavaType, createJoinType, createMapType, createMultisetType, createSqlIntervalType, createSqlType, createSqlType, createSqlType, createStructType, createStructType, createStructType, createStructType, createTypeWithCharsetAndCollation, createTypeWithNullability, createUnknownType, getDefaultCharset, getTypeSystem, leastRestrictive, useDoubleMultiplication

Field Detail

syntheticTypes

private final Map<List<Pair<Type,Boolean>>,JavaTypeFactoryImpl.SyntheticRecordType> syntheticTypes

Constructor Detail

JavaTypeFactoryImpl

public JavaTypeFactoryImpl()

JavaTypeFactoryImpl

public JavaTypeFactoryImpl(RelDataTypeSystem typeSystem)

Method Detail

createStructType

public RelDataType createStructType(Class type)

Description copied from interface: JavaTypeFactory

Creates a record type based upon the public fields of a Java class.

Specified by:

createStructType in interface JavaTypeFactory

Parameters:

type - Java class

Returns:

Record type that remembers its Java class

fieldType

private Type fieldType(Field field)

Returns the type of a field.

Takes into account Array annotations if present.

createType

public RelDataType createType(Type type)

Description copied from interface: JavaTypeFactory

Creates a type, deducing whether a record, scalar or primitive type is needed.

Specified by:

createType in interface JavaTypeFactory

Parameters:

type - Java type, such as a Class

Returns:

Record or scalar type

getJavaClass

public Type getJavaClass(RelDataType type)

Specified by:

getJavaClass in interface JavaTypeFactory

toSql

public RelDataType toSql(RelDataType type)

Description copied from interface: JavaTypeFactory

Converts a type in Java format to a SQL-oriented type.

Specified by:

toSql in interface JavaTypeFactory

toSql

public static RelDataType toSql(RelDataTypeFactory typeFactory,
                                RelDataType type)

Converts a type in Java format to a SQL-oriented type.

createSyntheticType

public Type createSyntheticType(List<Type> types)

Description copied from interface: JavaTypeFactory

Creates a synthetic Java class whose fields have the given Java types.

Specified by:

createSyntheticType in interface JavaTypeFactory

register

private JavaTypeFactoryImpl.SyntheticRecordType register(JavaTypeFactoryImpl.SyntheticRecordType syntheticType)

createSyntheticType

private Type createSyntheticType(RelRecordType type)

Creates a synthetic Java class whose fields have the same names and relational types.