org.eigenbase.oj
Class OJTypeFactoryImpl

java.lang.Object
  org.eigenbase.reltype.RelDataTypeFactoryImpl
      org.eigenbase.sql.type.SqlTypeFactoryImpl
          org.eigenbase.oj.OJTypeFactoryImpl

All Implemented Interfaces:

OJTypeFactory, RelDataTypeFactory

Direct Known Subclasses:

FarragoTypeFactoryImpl

public class OJTypeFactoryImpl
extends SqlTypeFactoryImpl
implements OJTypeFactory

Implementation of RelDataTypeFactory based upon OpenJava's type system.

Since:

May 30, 2003

Version:

$Id: //open/dev/farrago/src/org/eigenbase/oj/OJTypeFactoryImpl.java#14 $

Author:

jhyde

See Also:

OJClass, RelDataTypeFactory

Nested Class Summary

private class

OJTypeFactoryImpl.OJScalarType Type based upon an OJClass.

Nested classes/interfaces inherited from class org.eigenbase.reltype.RelDataTypeFactoryImpl

RelDataTypeFactoryImpl.JavaType

Nested classes/interfaces inherited from interface org.eigenbase.reltype.RelDataTypeFactory

RelDataTypeFactory.FieldInfo, RelDataTypeFactory.ListFieldInfo

Field Summary

protected HashMap<OJClass,RelDataType>	mapOJClassToType
private OJClassMap	ojClassMap

Constructor Summary

	OJTypeFactoryImpl() Creates an OJTypeFactoryImpl.
protected	OJTypeFactoryImpl(OJClassMap ojClassMap)

Method Summary

RelDataType	createArrayType(RelDataType elementType, long maxCardinality) Creates an array type.
RelDataType	createJavaType(Class clazz) Creates a type which corresponds to a Java class.
protected OJClass	createOJClassForRecordType(OJClass declarer, RelDataType recordType)
OJClass	toOJClass(OJClass declarer, RelDataType type)
RelDataType	toType(OJClass ojClass)

Methods inherited from class org.eigenbase.sql.type.SqlTypeFactoryImpl

canonize, createMultisetType, createSqlIntervalType, createSqlType, createSqlType, createSqlType, createTypeWithCharsetAndCollation, createTypeWithNullability, leastRestrictive, shouldRaggedFixedLengthValueUnionBeVariable

Methods inherited from class org.eigenbase.reltype.RelDataTypeFactoryImpl

copyType, createDecimalProduct, createDecimalQuotient, createJoinType, createStructType, createStructType, createStructType, getDefaultCharset, 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.eigenbase.reltype.RelDataTypeFactory

copyType, createDecimalProduct, createDecimalQuotient, createJoinType, createMultisetType, createSqlIntervalType, createSqlType, createSqlType, createSqlType, createStructType, createStructType, createStructType, createTypeWithCharsetAndCollation, createTypeWithNullability, getDefaultCharset, leastRestrictive, useDoubleMultiplication

Field Detail

mapOJClassToType

protected final HashMap<OJClass,RelDataType> mapOJClassToType

ojClassMap

private final OJClassMap ojClassMap

Constructor Detail

OJTypeFactoryImpl

public OJTypeFactoryImpl()

Creates an OJTypeFactoryImpl.

OJTypeFactoryImpl

protected OJTypeFactoryImpl(OJClassMap ojClassMap)

Method Detail

createJavaType

public RelDataType createJavaType(Class clazz)

Description copied from interface: RelDataTypeFactory

Creates a type which corresponds to a Java class.

Specified by:

createJavaType in interface RelDataTypeFactory

Overrides:

createJavaType in class RelDataTypeFactoryImpl

Parameters:

clazz - the Java class used to define the type

Returns:

canonical Java type descriptor

createArrayType

public RelDataType createArrayType(RelDataType elementType,
                                   long maxCardinality)

Description copied from interface: RelDataTypeFactory

Creates an array type. Arrays are ordered collections of elements.

Specified by:

createArrayType in interface RelDataTypeFactory

Overrides:

createArrayType in class RelDataTypeFactoryImpl

Parameters:

elementType - type of the elements of the array

maxCardinality - maximum array size, or -1 for unlimited

Returns:

canonical array type descriptor

createOJClassForRecordType

protected OJClass createOJClassForRecordType(OJClass declarer,
                                             RelDataType recordType)

toOJClass

public OJClass toOJClass(OJClass declarer,
                         RelDataType type)

Specified by:

toOJClass in interface OJTypeFactory

toType

public RelDataType toType(OJClass ojClass)

Specified by:

toType in interface OJTypeFactory