org.apache.hudi.internal.schema.action

Class TableChanges.ColumnUpdateChange

java.lang.Object

org.apache.hudi.internal.schema.action.TableChange.BaseColumnChange

org.apache.hudi.internal.schema.action.TableChanges.ColumnUpdateChange

All Implemented Interfaces:

TableChange

Enclosing class:

TableChanges

public static class TableChanges.ColumnUpdateChange
extends TableChange.BaseColumnChange

Deal with update columns changes for table.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.hudi.internal.schema.action.TableChange

TableChange.BaseColumnChange, TableChange.ColumnChangeID, TableChange.ColumnPositionChange

Field Summary

Fields inherited from class org.apache.hudi.internal.schema.action.TableChange.BaseColumnChange

caseSensitive, id2parent, internalSchema, positionChangeMap

Method Summary

Modifier and Type	Method and Description
Type	applyUpdates(Types.Field oldField, Type type)
TableChange.ColumnChangeID	columnChangeId()
protected Integer	findIdByFullName(String fullName) Abstract method.
static TableChanges.ColumnUpdateChange	get(InternalSchema schema)
static TableChanges.ColumnUpdateChange	get(InternalSchema schema, boolean caseSensitive)
Map<Integer,ArrayList<TableChange.ColumnPositionChange>>	getPositionChangeMap()
Map<Integer,Types.Field>	getUpdates()
TableChanges.ColumnUpdateChange	renameColumn(String name, String newName) Rename a column in the schema.
TableChanges.ColumnUpdateChange	updateColumnComment(String name, String newDoc) Update a column doc in the schema to a new primitive type.
TableChanges.ColumnUpdateChange	updateColumnNullability(String name, boolean nullable) Update nullable for column.
TableChanges.ColumnUpdateChange	updateColumnNullability(String name, boolean nullable, boolean force)
TableChanges.ColumnUpdateChange	updateColumnType(String name, Type newType) Update a column in the schema to a new type.
boolean	withPositionChange()

Methods inherited from class org.apache.hudi.internal.schema.action.TableChange.BaseColumnChange

addPositionChange, addPositionChange, checkColModifyIsLegal

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hudi.internal.schema.action.TableChange

fromValue

Method Detail

withPositionChange

public boolean withPositionChange()

Specified by:

withPositionChange in interface TableChange

Overrides:

withPositionChange in class TableChange.BaseColumnChange

applyUpdates

public Type applyUpdates(Types.Field oldField,
                         Type type)

getUpdates

public Map<Integer,Types.Field> getUpdates()

updateColumnType

public TableChanges.ColumnUpdateChange updateColumnType(String name,
                                                        Type newType)

Update a column in the schema to a new type. only support update primitive type. Only updates that widen types are allowed.

Parameters:

name - name of the column to update

newType - new type for the column

Returns:

this

Throws:

IllegalArgumentException

updateColumnComment

public TableChanges.ColumnUpdateChange updateColumnComment(String name,
                                                           String newDoc)

Update a column doc in the schema to a new primitive type.

Parameters:

name - name of the column to update

newDoc - new documentation for the column

Returns:

this

Throws:

IllegalArgumentException

renameColumn

public TableChanges.ColumnUpdateChange renameColumn(String name,
                                                    String newName)

Rename a column in the schema.

Parameters:

name - name of the column to rename

newName - new name for the column

Returns:

this

Throws:

IllegalArgumentException

updateColumnNullability

public TableChanges.ColumnUpdateChange updateColumnNullability(String name,
                                                               boolean nullable)

Update nullable for column. only support required type -> optional type

Parameters:

name - name of the column to update

nullable - nullable for updated name

Returns:

this

Throws:

IllegalArgumentException

updateColumnNullability

public TableChanges.ColumnUpdateChange updateColumnNullability(String name,
                                                               boolean nullable,
                                                               boolean force)

getPositionChangeMap

public Map<Integer,ArrayList<TableChange.ColumnPositionChange>> getPositionChangeMap()

columnChangeId

public TableChange.ColumnChangeID columnChangeId()

findIdByFullName

protected Integer findIdByFullName(String fullName)

Description copied from class: TableChange.BaseColumnChange

Abstract method. give a column fullName and return the field id

Specified by:

findIdByFullName in class TableChange.BaseColumnChange

Parameters:

fullName - column fullName

Returns:

field id of current column

get

public static TableChanges.ColumnUpdateChange get(InternalSchema schema)

get

public static TableChanges.ColumnUpdateChange get(InternalSchema schema,
                                                  boolean caseSensitive)