org.apache.hudi.internal.schema.action

Class TableChange.BaseColumnChange

java.lang.Object

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

All Implemented Interfaces:

TableChange

Direct Known Subclasses:

TableChanges.ColumnAddChange, TableChanges.ColumnDeleteChange, TableChanges.ColumnUpdateChange

Enclosing interface:

TableChange

public abstract static class TableChange.BaseColumnChange
extends Object
implements TableChange

Information of base column changes

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

Modifier and Type	Field and Description
protected boolean	caseSensitive
protected Map<Integer,Integer>	id2parent
protected InternalSchema	internalSchema
protected Map<Integer,ArrayList<TableChange.ColumnPositionChange>>	positionChangeMap

Method Summary

Modifier and Type	Method and Description
TableChange.BaseColumnChange	addPositionChange(String srcName, String dsrName, String orderType)
TableChange.BaseColumnChange	addPositionChange(String srcName, String dsrName, TableChange.ColumnPositionChange.ColumnPositionType orderType) Add position change.
protected void	checkColModifyIsLegal(String colNeedToModify)
protected abstract Integer	findIdByFullName(String fullName) Abstract method.
boolean	withPositionChange()

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

columnChangeId, fromValue

Field Detail

internalSchema

protected final InternalSchema internalSchema

id2parent

protected final Map<Integer,Integer> id2parent

positionChangeMap

protected final Map<Integer,ArrayList<TableChange.ColumnPositionChange>> positionChangeMap

caseSensitive

protected final boolean caseSensitive

Method Detail

addPositionChange

public TableChange.BaseColumnChange addPositionChange(String srcName,
                                                      String dsrName,
                                                      TableChange.ColumnPositionChange.ColumnPositionType orderType)

Add position change.

Parameters:

srcName - column which need to be reordered

dsrName - reference position

orderType - change types

Returns:

this

addPositionChange

public TableChange.BaseColumnChange addPositionChange(String srcName,
                                                      String dsrName,
                                                      String orderType)

findIdByFullName

protected abstract Integer findIdByFullName(String fullName)

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

Parameters:

fullName - column fullName

Returns:

field id of current column

checkColModifyIsLegal

protected void checkColModifyIsLegal(String colNeedToModify)

withPositionChange

public boolean withPositionChange()

Specified by:

withPositionChange in interface TableChange