package liquibase.ext.samplesqlgenerator;

 import liquibase.database.Database;

 import liquibase.exception.ValidationErrors;

 import liquibase.sql.Sql;

 import liquibase.sql.UnparsedSql;

 import liquibase.sqlgenerator.SqlGenerator;

 import liquibase.sqlgenerator.SqlGeneratorChain;

 import liquibase.sqlgenerator.core.AbstractSqlGenerator;

 import liquibase.statement.core.UpdateStatement;

 import java.util.List;

 import java.util.ArrayList;

 import java.util.Arrays;

 public class SampleUpdateGenerator extends AbstractSqlGenerator<UpdateStatement> {

     @Override

     public int getPriority() {

         return 15;

     }

     @Override

     public boolean supports(UpdateStatement statement, Database database) {

         return false; // normally would want true, but we don't want to have this called in all our tests

     }

     public ValidationErrors validate(UpdateStatement statement, Database database, SqlGeneratorChain sqlGeneratorChain) {

         return new ValidationErrors();

     }

     public Sql[] generateSql(UpdateStatement statement, Database database, SqlGeneratorChain sqlGeneratorChain) {

         List<Sql> list = new ArrayList<Sql>();

         list.add(new UnparsedSql("select " + database.getCurrentDateTimeFunction()));

         list.addAll(Arrays.asList(sqlGeneratorChain.generateSql(statement, database)));

         return list.toArray(new Sql[list.size()]);

     }

 }