Package org.apache.calcite.adapter.java

Interface JavaTypeFactory

All Superinterfaces:

RelDataTypeFactory

All Known Implementing Classes:

JavaTypeFactoryExtImpl, JavaTypeFactoryImpl

public interface JavaTypeFactory
extends RelDataTypeFactory

Type factory that can register Java classes as record types.

Nested Class Summary

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

RelDataTypeFactory.Builder, RelDataTypeFactory.FieldInfo, RelDataTypeFactory.FieldInfoBuilder

Method Summary

Modifier and Type	Method	Description
RelDataType	createStructType(Class clazz)	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.
RelDataType	createType(Type type)	Creates a type, deducing whether a record, scalar or primitive type is needed.
Type	getJavaClass(RelDataType type)
RelDataType	toSql(RelDataType type)	Converts a type in Java format to a SQL-oriented type.

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

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

Method Details

createStructType

RelDataType createStructType(Class clazz)

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

Parameters:

clazz - Java class

Returns:

Record type that remembers its Java class

createType

RelDataType createType(Type type)

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

Parameters:

type - Java type, such as a Class

Returns:

Record or scalar type

getJavaClass

Type getJavaClass(RelDataType type)

createSyntheticType

Type createSyntheticType(List<Type> types)

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

toSql

RelDataType toSql(RelDataType type)

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