edu.udo.cs.miningmart.m4
Interface PrimaryKey

All Superinterfaces:

Key, M4Data, M4Object

All Known Implementing Classes:

PrimaryKey

public interface PrimaryKey
extends Key

A PrimaryKey models the fact that some Columns of a Columnset enable a unique identification of each row in that Columnset. That is, the combination of entries of the Columns belonging to the PrimaryKey is enough to identify each row. Each PrimaryKey belongs to exactly one Columnset and can have a number of Columns, all of which must belong to that Columnset.

Version:

$Id: PrimaryKey.java,v 1.4 2006/09/27 14:59:58 euler Exp $

Author:

Timm Euler, Daniel Hakenjos

Method Summary

void	addColumn(Column column)
PrimaryKey	copy(Columnset newColumnSet)
java.util.Collection	getAllColumns()
Columnset	getColumnset()
void	removeAllColumns()
void	removeColumn(java.lang.String name)
void	setColumnset(Columnset columnSet)

Methods inherited from interface edu.udo.cs.miningmart.m4.Key

getForeignKeyColumnset, getPrimaryKeyColumnset, setForeignKeyColumnset, setPrimaryKeyColumnset

Methods inherited from interface edu.udo.cs.miningmart.m4.M4Data

deleteSoon, getDocumentation, getValidName, isDirty, isWaitingForDelete, setDocumentation

Methods inherited from interface edu.udo.cs.miningmart.m4.M4Object

doPrint, doPrint, equals, executeBusinessSingleValueSqlRead, executeBusinessSingleValueSqlReadL, executeBusinessSqlRead, executeBusinessSqlWrite, executeM4SingleValueSqlRead, executeM4SingleValueSqlReadL, executeM4SqlRead, executeM4SqlWrite, getCasePrintObject, getId, getM4Db, getM4ObjectFromCache, getName, getNextM4SequenceValue, isNew, load, print, putM4ObjectToCache, replaceSpacesInName, setId, setName, setNotNew

Method Detail

addColumn

void addColumn(Column column)
               throws M4Exception

Throws:

M4Exception

copy

PrimaryKey copy(Columnset newColumnSet)
                throws M4Exception

Throws:

M4Exception

getColumnset

Columnset getColumnset()

setColumnset

void setColumnset(Columnset columnSet)
                  throws M4Exception

Throws:

M4Exception

getAllColumns

java.util.Collection getAllColumns()
                                   throws M4Exception

Throws:

M4Exception

removeAllColumns

void removeAllColumns()
                      throws M4Exception

Throws:

M4Exception

removeColumn

void removeColumn(java.lang.String name)
                  throws M4Exception

Throws:

M4Exception