/*
* Copyright(C) 2011-2012 Alibaba Group Holding Limited
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Authors:
* wentong <wentong@taobao.com>
*/
package com.taobao.tdhs.client.easy.impl;
import com.taobao.tdhs.client.easy.And;
import com.taobao.tdhs.client.easy.Query;
import com.taobao.tdhs.client.easy.Set;
import com.taobao.tdhs.client.easy.Where;
import com.taobao.tdhs.client.exception.TDHSException;
import com.taobao.tdhs.client.request.Get;
import com.taobao.tdhs.client.request.TableInfo;
import com.taobao.tdhs.client.request.Update;
import com.taobao.tdhs.client.response.TDHSResponse;
import com.taobao.tdhs.client.statement.Statement;
import java.util.Collections;
/**
* @author <a href="mailto:wentong@taobao.com">ζι</a>
* @since 11-12-27 δΈε3:27
*/
public class QueryImpl implements Query {
private final Get get;
private final Update update;
private final Where where;
private final And and;
private final Set set;
private final Statement statement;
public QueryImpl(Statement statement) {
this.statement = statement;
this.get = new Get(new TableInfo());
this.update = new Update(this.get);
this.where = new WhereImpl(get, this);
this.and = new AndImpl(get, this);
this.set = new SetImpl(get, update, this);
}
public Query use(String db) {
get.getTableInfo().setDb(db);
return this;
}
public Query from(String table) {
get.getTableInfo().setTable(table);
return this;
}
public Query select(String... fields) {
if (fields != null) {
Collections.addAll(get.getTableInfo().getFields(), fields);
}
return this;
}
public Where where() {
return this.where;
}
public And and() {
return this.and;
}
public Set set() {
return this.set;
}
public Query limit(int start, int limit) {
get.setStart(start);
get.setLimit(limit);
return this;
}
public TDHSResponse get() throws TDHSException {
return statement.get(get);
}
public TDHSResponse delete() throws TDHSException {
return statement.delete(get);
}
public TDHSResponse count() throws TDHSException {
return statement.count(get);
}
public TDHSResponse update() throws TDHSException {
return statement.update(update);
}
public TDHSResponse get(String charsetName) throws TDHSException {
get.setCharsetName(charsetName);
return statement.get(get);
}
public TDHSResponse count(String charsetName) throws TDHSException {
get.setCharsetName(charsetName);
return statement.count(get);
}
public TDHSResponse delete(String charsetName) throws TDHSException {
get.setCharsetName(charsetName);
return statement.delete(get);
}
public TDHSResponse update(String charsetName) throws TDHSException {
update.setCharsetName(charsetName);
return statement.update(update);
}
}