org.apache.calcite.rel.type

Class RelDataTypeFactory.FieldInfoBuilder

java.lang.Object

org.apache.calcite.rel.type.RelDataTypeFactory.FieldInfoBuilder

All Implemented Interfaces:

RelDataTypeFactory.FieldInfo

Enclosing interface:

RelDataTypeFactory

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

Implementation of RelDataTypeFactory.FieldInfo that provides a fluid API to build a list of fields.

Constructor Summary

Constructors

Constructor and Description
RelDataTypeFactory.FieldInfoBuilder(RelDataTypeFactory typeFactory) Creates a FieldInfoBuilder with the given type factory.

Method Summary

Methods

Modifier and Type	Method and Description
RelDataTypeFactory.FieldInfoBuilder	add(RelDataTypeField field) Adds a field.
RelDataTypeFactory.FieldInfoBuilder	add(String name, RelDataType type) Adds a field with given name and type.
RelDataTypeFactory.FieldInfoBuilder	add(String name, SqlTypeName typeName) Adds a field with a type created using RelDataTypeFactory.createSqlType(org.apache.calcite.sql.type.SqlTypeName).
RelDataTypeFactory.FieldInfoBuilder	add(String name, SqlTypeName typeName, int precision) Adds a field with a type created using RelDataTypeFactory.createSqlType(org.apache.calcite.sql.type.SqlTypeName, int).
RelDataTypeFactory.FieldInfoBuilder	add(String name, SqlTypeName typeName, int precision, int scale) Adds a field with a type created using RelDataTypeFactory.createSqlType(org.apache.calcite.sql.type.SqlTypeName, int, int).
RelDataTypeFactory.FieldInfoBuilder	addAll(Iterable<? extends Map.Entry<String,RelDataType>> fields) Adds all fields in a collection.
RelDataType	build() Creates a struct type with the current contents of this builder.
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.
RelDataTypeFactory.FieldInfoBuilder	nullable(boolean nullable) Changes the nullability of the last field added.

Methods inherited from class java.lang.Object

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

Constructor Detail

RelDataTypeFactory.FieldInfoBuilder

public RelDataTypeFactory.FieldInfoBuilder(RelDataTypeFactory typeFactory)

Creates a FieldInfoBuilder with the given type factory.

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

add

public RelDataTypeFactory.FieldInfoBuilder add(String name,
                                      RelDataType type)

Adds a field with given name and type.

add

public RelDataTypeFactory.FieldInfoBuilder add(String name,
                                      SqlTypeName typeName)

Adds a field with a type created using RelDataTypeFactory.createSqlType(org.apache.calcite.sql.type.SqlTypeName).

add

public RelDataTypeFactory.FieldInfoBuilder add(String name,
                                      SqlTypeName typeName,
                                      int precision)

Adds a field with a type created using RelDataTypeFactory.createSqlType(org.apache.calcite.sql.type.SqlTypeName, int).

add

public RelDataTypeFactory.FieldInfoBuilder add(String name,
                                      SqlTypeName typeName,
                                      int precision,
                                      int scale)

Adds a field with a type created using RelDataTypeFactory.createSqlType(org.apache.calcite.sql.type.SqlTypeName, int, int).

nullable

public RelDataTypeFactory.FieldInfoBuilder nullable(boolean nullable)

Changes the nullability of the last field added.

Throws:

IndexOutOfBoundsException - if no fields have been added

add

public RelDataTypeFactory.FieldInfoBuilder add(RelDataTypeField field)

Adds a field. Field's ordinal is ignored.

addAll

public RelDataTypeFactory.FieldInfoBuilder addAll(Iterable<? extends Map.Entry<String,RelDataType>> fields)

Adds all fields in a collection.

build

public RelDataType build()

Creates a struct type with the current contents of this builder.