// Licensed to the Apache Software Foundation (ASF) under one

// or more contributor license agreements. See the NOTICE file

// distributed with this work for additional information

// regarding copyright ownership. The ASF licenses this file

// to you under the Apache License, Version 2.0 (the

// "License"); you may not use this file except in compliance

// the License. You may obtain a copy of the License at

//

// http://www.apache.org/licenses/LICENSE-2.0

//

// Unless required by applicable law or agreed to in writing,

// software distributed under the License is distributed on an

// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

// KIND, either express or implied. See the License for the

// specific language governing permissions and limitations

// under the License.

package com.cloud.utils.db;

import java.lang.reflect.Field;

public class Select<S, T> {

QueryBuilder<S,T> _builder;

Class<T> _clazz;

Attribute _attr;

String _as;

Field _field;

protected Select(QueryBuilder<S, T> builder, Class<T> clazz, Attribute attr) {

_builder = builder;

_clazz = clazz;

_attr = attr;

}

public QueryBuilder<S, T> into(String fieldName) {

if (fieldName != null) {

try {

_field = _clazz.getDeclaredField(fieldName);

_field.setAccessible(true);

} catch (SecurityException e) {

throw new RuntimeException("Unable to find " + fieldName + " in " + _clazz.getName(), e);

} catch (NoSuchFieldException e) {

throw new RuntimeException("Unable to find " + fieldName + " in " + _clazz.getName(), e);

}

}

return _builder;

}

public QueryBuilder<S, T> as(String as) {

_as = as;

return _builder;

}

}