cayenne-dbsync/src/main/java/org/apache/cayenne/dbsync/merge/token/db/SetValueForNullToDb.java

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package org.apache.cayenne.dbsync.merge.token.db;

import org.apache.cayenne.dba.DbAdapter;
import org.apache.cayenne.dbsync.merge.factory.MergerTokenFactory;
import org.apache.cayenne.dbsync.merge.token.DummyReverseToken;
import org.apache.cayenne.dbsync.merge.token.MergerToken;
import org.apache.cayenne.dbsync.merge.token.ValueForNullProvider;
import org.apache.cayenne.map.DbAttribute;
import org.apache.cayenne.map.DbEntity;

import java.util.List;


public class SetValueForNullToDb extends AbstractToDbToken.EntityAndColumn {
    
    private ValueForNullProvider valueForNullProvider;

    public SetValueForNullToDb(DbEntity entity, DbAttribute column, ValueForNullProvider valueForNullProvider) {
        super("Set value for null", 80, entity, column);
        this.valueForNullProvider = valueForNullProvider;
    }
    
    @Override
    public List<String> createSql(DbAdapter adapter) {
        return valueForNullProvider.createSql(getEntity(), getColumn());
    }

    @Override
    public MergerToken createReverse(MergerTokenFactory factory) {
        return new DummyReverseToken(this);
    }
    
}