org.apache.cayenne.merge

Class SetValueForNullToDb

java.lang.Object

org.apache.cayenne.merge.AbstractToDbToken

org.apache.cayenne.merge.SetValueForNullToDb

All Implemented Interfaces:

Comparable<MergerToken>, MergerToken

public class SetValueForNullToDb
extends AbstractToDbToken

Constructor Summary

Constructors

Constructor and Description
SetValueForNullToDb(DbEntity entity, DbAttribute column, ValueForNullProvider valueForNullProvider)

Method Summary

Methods

Modifier and Type	Method and Description
int	compareTo(MergerToken o)
MergerToken	createReverse(MergerFactory factory) Create a token with the reverse direction.
List<String>	createSql(DbAdapter adapter)
DbAttribute	getColumn()
DbEntity	getEntity()
String	getTokenValue()

Methods inherited from class org.apache.cayenne.merge.AbstractToDbToken

execute, executeSql, getDirection, getTokenName, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

SetValueForNullToDb

public SetValueForNullToDb(DbEntity entity,
                   DbAttribute column,
                   ValueForNullProvider valueForNullProvider)

Method Detail

createSql

public List<String> createSql(DbAdapter adapter)

Specified by:

createSql in class AbstractToDbToken

createReverse

public MergerToken createReverse(MergerFactory factory)

Description copied from interface: MergerToken

Create a token with the reverse direction. AddColumn in one direction becomes DropColumn in the other direction.

Not all tokens are reversible.

getColumn

public DbAttribute getColumn()

getTokenValue

public String getTokenValue()

Specified by:

getTokenValue in interface MergerToken

getEntity

public DbEntity getEntity()

compareTo

public int compareTo(MergerToken o)