Package org.apache.gravitino.rel

Class TableChange.UpdateColumnPosition

java.lang.Object

org.apache.gravitino.rel.TableChange.UpdateColumnPosition

All Implemented Interfaces:

TableChange, TableChange.ColumnChange

Enclosing interface:

TableChange

public static final class TableChange.UpdateColumnPosition
extends Object
implements TableChange.ColumnChange

A TableChange to update the position of a field.

The field names are used to find the field to update.

If the field does not exist, the change must result in an IllegalArgumentException.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.gravitino.rel.TableChange

TableChange.AddColumn, TableChange.AddIndex, TableChange.After, TableChange.ColumnChange, TableChange.ColumnPosition, TableChange.Default, TableChange.DeleteColumn, TableChange.DeleteIndex, TableChange.First, TableChange.RemoveProperty, TableChange.RenameColumn, TableChange.RenameTable, TableChange.SetProperty, TableChange.UpdateColumnAutoIncrement, TableChange.UpdateColumnComment, TableChange.UpdateColumnDefaultValue, TableChange.UpdateColumnNullability, TableChange.UpdateColumnPosition, TableChange.UpdateColumnType, TableChange.UpdateComment

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)	Compares this UpdateColumnPosition instance with another object for equality.
String[]	fieldName()	Retrieves the field name of the column to be modified.
String[]	getFieldName()	Retrieves the field name of the column whose position is being updated.
TableChange.ColumnPosition	getPosition()	Retrieves the new position for the column.
int	hashCode()	Generates a hash code for this UpdateColumnPosition instance.

Methods inherited from class java.lang.Object

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

Method Details

getFieldName

public String[] getFieldName()

Retrieves the field name of the column whose position is being updated.

Returns:

An array of strings representing the field name.

getPosition

public TableChange.ColumnPosition getPosition()

Retrieves the new position for the column.

Returns:

The new position of the column.

equals

public boolean equals(Object o)

Compares this UpdateColumnPosition instance with another object for equality. The comparison is based on the field name array and the new position.

Overrides:

equals in class Object

Parameters:

o - The object to compare with this instance.

Returns:

true if the given object represents the same position update; false otherwise.

hashCode

public int hashCode()

Generates a hash code for this UpdateColumnPosition instance. The hash code is based on both the hierarchical field name and the new position.

Overrides:

hashCode in class Object

Returns:

A hash code value for this position update operation.

fieldName

public String[] fieldName()

Description copied from interface: TableChange.ColumnChange

Retrieves the field name of the column to be modified.

Specified by:

fieldName in interface TableChange.ColumnChange

Returns:

An array of strings representing the field name.