org.eigenbase.reltype
Class RelDataTypeFactory.ListFieldInfo

java.lang.Object
  org.eigenbase.reltype.RelDataTypeFactory.ListFieldInfo

All Implemented Interfaces:

RelDataTypeFactory.FieldInfo

Enclosing interface:

RelDataTypeFactory

public static class RelDataTypeFactory.ListFieldInfo
extends Object
implements RelDataTypeFactory.FieldInfo

Simple implementation of RelDataTypeFactory.FieldInfo, based on a list of fields.

Field Summary

private List<? extends RelDataTypeField>

fieldList

Constructor Summary

RelDataTypeFactory.ListFieldInfo(List<? extends RelDataTypeField> fieldList)
Creates a ListFieldInfo.

Method Summary

int	getFieldCount() Returns the number of fields.
String	getFieldName(int index) Returns the name of a given field.
RelDataType	getFieldType(int index) Returns the type of a given field.

Methods inherited from class java.lang.Object

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

Field Detail

fieldList

private final List<? extends RelDataTypeField> fieldList

Constructor Detail

RelDataTypeFactory.ListFieldInfo

public RelDataTypeFactory.ListFieldInfo(List<? extends RelDataTypeField> fieldList)

Creates a ListFieldInfo.

Parameters:

fieldList - List of fields

Method Detail

getFieldCount

public int getFieldCount()

Description copied from interface: RelDataTypeFactory.FieldInfo

Returns the number of fields.

Specified by:

getFieldCount in interface RelDataTypeFactory.FieldInfo

Returns:

number of fields

getFieldName

public String getFieldName(int index)

Description copied from interface: RelDataTypeFactory.FieldInfo

Returns the name of a given field.

Specified by:

getFieldName in interface RelDataTypeFactory.FieldInfo

Parameters:

index - Ordinal of field

Returns:

Name of given field

getFieldType

public RelDataType getFieldType(int index)

Description copied from interface: RelDataTypeFactory.FieldInfo

Returns the type of a given field.

Specified by:

getFieldType in interface RelDataTypeFactory.FieldInfo

Parameters:

index - Ordinal of field

Returns:

Type of given field