/*
* Copyright 2011 Objectos, Fábrica de Software LTDA.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with 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 br.com.objectos.way.relational;
import java.sql.ResultSet;
import java.sql.SQLException;
import br.com.objectos.way.relational.GeneratedKeyCallback;
import br.com.objectos.way.relational.Insert;
import com.google.common.base.Objects;
/**
* @author marcio.endo@objectos.com.br (Marcio Endo)
*/
abstract class AbstractType<T> implements Type<T> {
private Integer id;
final T value;
public AbstractType() {
this.value = null;
}
public AbstractType(T value) {
this.value = value;
}
public AbstractType(ResultSet rs) throws SQLException {
this.id = rs.getInt("ID");
this.value = getValue(rs);
}
abstract T getValue(ResultSet rs) throws SQLException;
abstract Insert setValue(Insert insert);
public Integer getId() {
return id;
}
@Override
public T getValue() {
return value;
}
@Override
public Insert getInsert() {
Insert insert = Insert //
.into(getTable()) //
.onGeneratedKey(new GeneratedKeyCallback() {
@Override
public void set(ResultSet rs) throws SQLException {
id = rs.next() ? rs.getInt(1) : null;
}
});
return setValue(insert);
}
@SuppressWarnings({
"rawtypes",
"unchecked" })
@Override
public ResultSetLoader<Type<T>> getLoader() {
Class<? extends AbstractType> entityClass = getClass();
return new ReflectionLoader<Type<T>>((Class<? extends Type<T>>) entityClass);
}
@Override
public String toString() {
return Objects.toStringHelper(this) //
.add("id", id) //
.add("value", value) //
.toString();
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((value == null) ? 0 : value.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (!(obj instanceof AbstractType)) {
return false;
}
AbstractType<?> other = (AbstractType<?>) obj;
if (value == null) {
if (other.value != null) {
return false;
}
} else if (!value.equals(other.value)) {
return false;
}
return true;
}
}