org.apache.calcite.rel.type

Interface RelDataTypeFactory.FieldInfo

All Known Implementing Classes:

RelDataTypeFactory.FieldInfoBuilder

Enclosing interface:

RelDataTypeFactory

public static interface RelDataTypeFactory.FieldInfo

Callback which provides enough information to create fields.

Method Summary

Methods

Modifier and Type	Method and Description
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.

Method Detail

getFieldCount

int getFieldCount()

Returns the number of fields.

Returns:

number of fields

getFieldName

String getFieldName(int index)

Returns the name of a given field.

Parameters:

index - Ordinal of field

Returns:

Name of given field

getFieldType

RelDataType getFieldType(int index)

Returns the type of a given field.

Parameters:

index - Ordinal of field

Returns:

Type of given field