package jaskell.sql;

import jaskell.script.Directive;

import jaskell.script.Parameter;

import java.util.List;

public class Union extends Query implements ThenSelect {

Directive _prefix;

Directive _query;

public Union() {

}

public Union(Query query) {

this._query = query;

}

public All all(Query query) {

All re = new All();

re._prefix = this._prefix;

re._query = query;

return re;

}

@Override

public String script() {

if (_query == null) {

return String.format("%s UNION", _prefix.script());

} else {

return String.format("%s UNION %s", _prefix.script(), _query.script());

}

}

@Override

public List<Parameter<?>> parameters() {

List<Parameter<?>> re = _prefix.parameters();

re.addAll(_query.parameters());

return re;

}

public static class All extends Union implements ThenSelect {

@Override

public String script() {

return String.format("%s UNION ALL %s", _prefix.script(), _query.script());

}

}

}