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	<title>Blog de Achados</title>
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		<title>Blog de Achados</title>
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		<title>Habilitando MySQL para Rails</title>
		<link>http://vgoes.wordpress.com/2010/07/19/habilitando-mysql-para-rails/</link>
		<comments>http://vgoes.wordpress.com/2010/07/19/habilitando-mysql-para-rails/#comments</comments>
		<pubDate>Mon, 19 Jul 2010 21:05:12 +0000</pubDate>
		<dc:creator>vgoes</dc:creator>
				<category><![CDATA[MySQL]]></category>
		<category><![CDATA[Rails]]></category>

		<guid isPermaLink="false">http://vgoes.wordpress.com/?p=26</guid>
		<description><![CDATA[If at any point when you&#8217;ve upgraded to Rails 2.2. you get the following error on Windows: &#8220;!!! The bundled mysql.rb driver has been removed from Rails 2.2. Please install the mysql gem and try again: gem install mysql.&#8221; the problem is because MySQL 5.1 client library doesn&#8217;t play well with Rails &#8211; the solution [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=vgoes.wordpress.com&amp;blog=939358&amp;post=26&amp;subd=vgoes&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<div class="postbody">
<div class="content">If at any point when you&#8217;ve upgraded to Rails 2.2. you get  the following error on Windows:</p>
<p>&#8220;!!! The bundled mysql.rb driver has  been removed from Rails 2.2. Please install the mysql gem and try again: gem  install mysql.&#8221;</p>
<p>the problem is because MySQL 5.1 client library doesn&#8217;t  play well with Rails &#8211; the solution is simple however:</p>
<p>- download older  MySQL client library, for example one from InstantRails: <!-- m --><a class="postlink" href="http://instantrails.rubyforge.org/svn/trunk/InstantRails-win/InstantRails/mysql/bin/libmySQL.dll">http://instantrails.rubyforge.org/svn/t  &#8230; bmySQL.dll</a><!-- m --></p>
<p>- copy the downloaded file to C:\Ruby\bin  (or wherever you installed Ruby)</p>
<p>- restart MySQL server</p>
<p>That&#8217;s  it! Just thought I&#8217;d share this with others, lost me an hour of researching.</p>
<p>Good luck!</p></div>
</div>
<dl class="postprofile">
<dt>InstalarÂ MySQL JDBC ActiveRecord adapter</dt>
</dl>
<p><em>gem install activerecord-jdbcmysql-adapter</em></p>
<p>Alterar arquivo de configuraÃ§ao \config\database.yml</p>
<div id="_mcePaste">development:</div>
<div id="_mcePaste">adapter: <strong>jdbcmysql</strong></div>
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		<title>Corrigindo erro SQL Server 2005 Express &#8211; Atachando databases (.mdf)</title>
		<link>http://vgoes.wordpress.com/2007/06/12/corrigindo-erro-sql-server-2005-express-atachando-databases-mdf/</link>
		<comments>http://vgoes.wordpress.com/2007/06/12/corrigindo-erro-sql-server-2005-express-atachando-databases-mdf/#comments</comments>
		<pubDate>Tue, 12 Jun 2007 23:45:59 +0000</pubDate>
		<dc:creator>vgoes</dc:creator>
				<category><![CDATA[Uncategorized]]></category>

		<guid isPermaLink="false">http://vgoes.wordpress.com/2007/06/12/corrigindo-erro-sql-server-2005-express-atachando-databases-mdf/</guid>
		<description><![CDATA[Quando tenta atachar um .mdf ao Server dÃ¡ erro 5 (access denied). &#8220;Unable to open the physical file &#8216;c:\Program Files\Microsoft SQL Server\MSSQL1.1\MSSQL\Data\TravCom.mdf&#8217;. Operating system error 5 (Access Denied).&#8221; SoluÃ§Ã£o Now to resolve this you need not to uninstall Sql Express. Just go to SQL express configuration manager and click on Services from the left pane. [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=vgoes.wordpress.com&amp;blog=939358&amp;post=22&amp;subd=vgoes&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Quando tenta atachar um .mdf ao Server <img src="///C:/DOCUME%7E1/Vladimir/CONFIG%7E1/Temp/moz-screenshot.jpg" /><img src="///C:/DOCUME%7E1/Vladimir/CONFIG%7E1/Temp/moz-screenshot-1.jpg" /> dÃ¡ erro 5 (access denied).</p>
<p>&#8220;Unable to open the physical file &#8216;c:\Program Files\Microsoft SQL  Server\MSSQL1.1\MSSQL\Data\TravCom.mdf&#8217;. Operating system error 5 (Access  Denied).&#8221;<br />
<strong>SoluÃ§Ã£o</strong></p>
<p>Now to resolve this you need not to uninstall Sql Express. Just go to SQL  express configuration manager and click on Services from the left pane. From the  right pane select Sql server service and go to its properties. The builtin login  should be &#8220;Nerwork Service&#8221;, change it to &#8220;Local system&#8221; and restart the  service. thats it.</p>
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		<title>Excluindo o boot</title>
		<link>http://vgoes.wordpress.com/2007/06/11/excluindo-o-boot/</link>
		<comments>http://vgoes.wordpress.com/2007/06/11/excluindo-o-boot/#comments</comments>
		<pubDate>Mon, 11 Jun 2007 19:11:34 +0000</pubDate>
		<dc:creator>vgoes</dc:creator>
				<category><![CDATA[Uncategorized]]></category>

		<guid isPermaLink="false">http://vgoes.wordpress.com/2007/06/11/excluindo-o-boot/</guid>
		<description><![CDATA[clipped from www.pcforum.com.br Instalou o Vista junto com o XP e agora quer desinstalar?   Apenas formatando a partição com o Vista não irá resolver,pois o boot do computador está sendo comandado pelo Windows Vista. Antes de formatar a partição ,insira o DVD de instalação do Windows Vista e execute o comando abaixo(iniciar / executar): [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=vgoes.wordpress.com&amp;blog=939358&amp;post=21&amp;subd=vgoes&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
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<td valign="top"><a href="http://clipmarks.com/clip-to-blog/" title="clipmarks' clip-to-blog"><img src="http://content.clipmarks.com/blog_icon/e68be62a-00f3-4cff-9b28-bf40141055cc/F0F734CF-C769-4F1B-833E-088D5B523383/" alt="" width="19" height="19" border="0" style="vertical-align:middle;display:inline;border:none;float:none;margin:0 4px;" /></a>clipped from <a title="http://www.pcforum.com.br/cgi/yabb/YaBB.cgi?num=1161996056" href="http://www.pcforum.com.br/cgi/yabb/YaBB.cgi?num=1161996056">www.pcforum.com.br</a></td>
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<td valign="top"><!-- CLIPPED FROM: http://www.pcforum.com.br/cgi/yabb/YaBB.cgi?num=1161996056 --><DIV class="message"><br />
			Instalou o Vista junto com o XP e agora quer desinstalar?  <BR /> Apenas formatando a partição com o Vista não irá resolver,pois o boot do computador está sendo comandado pelo Windows Vista. <BR /><DIV> Antes de formatar a partição ,insira o DVD de instalação do Windows Vista e execute o comando abaixo(iniciar / executar): </DIV>  <BR /><DIV> d:\boot\bootsect.exe /nt52 ALL /force   (d: é a unidade de DVD onde está a instalação do Vista). </DIV>  <BR /><DIV> Depois de executar o comando, delete os arquivos boot.bak e bootsect.bak no seu HD ,nq partição onde está instalado o Windows XP. </DIV>  <BR /><DIV> Reinicie o computador. </DIV>  <BR /><DIV> Agora pode formatar a partição como Vista que o dual boot já era. </DIV>  <BR /><DIV> abraços </DIV>  <BR /> fonte: asmon<br />
		</DIV></td>
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<td valign="top"><!-- CLIPPED FROM: http://www.pcforum.com.br/cgi/yabb/YaBB.cgi?num=1161996056 --><DIV><br />
			ah &#8230; ok, um bom pormenor que nao e preciso eskecer </DIV></td>
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		<title>JDBC to SQL Server Express</title>
		<link>http://vgoes.wordpress.com/2007/06/05/jdbc-to-sql-server-express/</link>
		<comments>http://vgoes.wordpress.com/2007/06/05/jdbc-to-sql-server-express/#comments</comments>
		<pubDate>Tue, 05 Jun 2007 18:19:24 +0000</pubDate>
		<dc:creator>vgoes</dc:creator>
				<category><![CDATA[Uncategorized]]></category>

		<guid isPermaLink="false">http://vgoes.wordpress.com/2007/06/05/jdbc-to-sql-server-express/</guid>
		<description><![CDATA[JDBC to SQL Server Express Connecting JDBC-based tools such as SQL Developer or DbVisualizer to SQL Server Express required the following steps: Obtain JDBC Driver TCP/IP for SQL Server Express Authentication Method Obtain JDBC Driver Using SQL Developer, when you get the following exception â€¦ Unable to find driver: net.sourceforge.jtds.jdbc.Driver â€¦ download the jTDS JDBC [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=vgoes.wordpress.com&amp;blog=939358&amp;post=19&amp;subd=vgoes&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<h2> JDBC to SQL Server Express</h2>
<p>Connecting <abbr title="Java DataBase Connection">JDBC-based</abbr> tools such as <var>SQL Developer</var> or <var>DbVisualizer</var> to <var>SQL Server Express</var> required the following steps:</p>
<ul>
<li>Obtain JDBC Driver</li>
<li>TCP/IP for SQL Server Express</li>
<li>Authentication Method</li>
</ul>
<h3>Obtain JDBC Driver</h3>
<p>Using <var>SQL Developer</var>, when you get the following exception â€¦</p>
<pre>Unable to find driver: net.sourceforge.jtds.jdbc.Driver</pre>
<p>â€¦ download the <a href="http://jtds.sourceforge.net/">jTDS</a> JDBC driver and install it in your <var>JRE</var>&#8216;s <var>ext</var> folder.  The latest version of the driver is 1.2.  Of course, there are other JDBC drivers for <var>SQL Server</var> you can use.</p>
<h3>TCP/IP for SQL Server Express</h3>
<p>By default, TCP/IP for <var>SQL Server Express</var> is disabled, so JDBC cannot connect to it and you may get the following exception â€¦</p>
<pre>Network error IOException: Connection refused: connect</pre>
<h4>Enable TCP/IP</h4>
<p>To enable TCP/IP, start <var>SQL Server Configuration Manager</var>.</p>
<ol>
<li>Expand <var>SQL Server 2005 Network Configuration</var> node.</li>
<li>In the right pane, select <var>Protocols for SQLEXPRESS</var>.  The right pane should now show <var>Protocols</var> and <var>Status</var> columns.</li>
<li>Select <var>Enable</var> from the <var>TCP/IP</var> context menu.</li>
</ol>
<h4>Find or Configure TCP/IP Port</h4>
<p>After enabling TCP/IP, you have to find out which port number to use.  <var>SQL Server Express</var> allocates a port dynamically each time it is started, so to find or configure the port number, continue using <var>SQL Server Configuration Manager</var> â€¦</p>
<ol>
<li>Select <var>Properties</var> from the <var>TCP/IP</var> context menu.  The <var>TCP/IP Properties</var> dialog should open.</li>
<li>Select the <var>IP Addresses</var> tab.</li>
<li>In the <var>IPA3</var> (127.0.0.1) node â€¦
<ol>
<li>The <var>TCP Dynamic Ports</var> field shows the currently used port number.  If you set that field to blank, then <var>SQL Server Express</var> should not automatically choose another port when it restarts.</li>
<li>Set the desired port number in the <var>TCP Port</var> field (<font color="#ff0000">1433</font>).</li>
<li>Press <var>OK</var> to apply your settings and close the dialog.</li>
</ol>
</li>
</ol>
<h4>Test TCP/IP</h4>
<p>If you change the TCP/IP port, you have to restart <var>SQL Server Express</var> before it can use the new port number.  To test that your port number is used, start a <var>cmd</var> window and type: <kbd>netstat -an</kbd>.  For instance, if you used port 1433, you should see this line in the list of ports used:</p>
<pre>TCP    0.0.0.0:1433           0.0.0.0:0              LISTENING</pre>
<h3>Authentication Method</h3>
<p>By default, <var>SQL Server Express</var> uses <var>Windows Authentication Mode</var> to authenticate connections.  If you get this exception â€¦</p>
<pre>Login failed for user '&lt;User name&gt;'. The user is not associated with a trusted SQL Server connection.</pre>
<p>â€¦ then you may have to enable <var>SQL Server Authentication Mode</var> and create or enable a user.</p>
<ol>
<li>Start <var>Microsoft SQL Server Management Studio Express</var> (SSMSE) and connect to your database server.</li>
<li>In <var>Object Explorer</var> pane, select <var>Properties</var> from your database&#8217;s context menu.  The <var>Server Properties</var> dialog should open.</li>
<li>Select <var>Security</var> page.</li>
<li>Select <var>SQL Server and Windows Authentication Mode</var> check box.</li>
<li>Press <var>OK</var> button to close the dialog.</li>
<li>In <var>Object Explorer</var> pane, expand <var>Security / Logins</var> node.</li>
<li>Select existing user <var>sa</var>.  Note that there is a red downward arrow next to that user&#8217;s image.</li>
<li>View <var>sa</var>&#8216;s properties.  The <var>Login Properties</var> dialog should open.</li>
<li>Select <var>Status</var> page.</li>
<li>Ensure that the <var>Login: Enabled</var> radio button is selected.</li>
<li>Select <var>General</var> page.</li>
<li>Enter a password for this user.</li>
<li>Press <var>OK</var> button to close the dialog.</li>
<li>If you refresh the <var>Object Explorer</var> pane, note that user <var>sa</var> no longer has a red downward arrow.</li>
</ol>
<h3>Finally â€¦</h3>
<p>After all these steps, you should be able to connect to your <var>SQL Server Express</var> database using JDBC.</p>
<p><a href="http://vgoes.files.wordpress.com/2007/06/imagem.jpg" title="SSMSE console"><img src="http://vgoes.files.wordpress.com/2007/06/imagem.jpg?w=450" alt="SSMSE console" /></a></p>
<p align="left"><span><font face="Arial" size="2"><strong>The long version.</strong></font></span></p>
<p align="left"><span><font face="Arial" size="2">This entry is designed to help explain the reasons behind the steps in the short version of this post. Lets walk through the steps and the problems and try and explain whats happening</font></span></p>
<p align="left"><span><font face="Arial" size="2"><em>Checking to make sure that Express is running via SQLCMD</em></font></span></p>
<p align="left"><span><font face="Arial" size="2">The default install for SQL Express installs Express as a named instance(called SQLExpress), with no network listening and with Windows Authentication support only.</font></span></p>
<p align="left"><span><font face="Arial" size="2">To connect to a named instance of SQL Server the convention is to use a servername of the format &lt;servername&gt;\&lt;instancename&gt;, its also possible to shortcut the machinename to either &#8220;.&#8221; or &#8220;(local)&#8221;(these shortcuts work with all protocols, localhost will also work but only with TCP/IP in older clients,however SQL Native Access supports resolution of LocalHost for Named Pipes and Shared Memory).</font></span><span></span><span></span></p>
<p align="left"><span><font face="Arial" size="2">No user id and password has been specified because of the default windows authentication, if the install had been changed to specify mixed mode authentication and a password had been given then this could have been used.</font></span></p>
<p align="left"><span><font face="Arial" size="2"><em>Enabling Protocols</em></font></span></p>
<p align="left"><span><font face="Arial" size="2">Because SQL Server Express does not listen on the network by default connections are made using a local protocol, in the case of the VS 2005 SKUs this is the shared memory protocol. The interface to this has changed in SQL Server 2005 such that older clients can no longer use it. </font></span><span><font face="Arial" size="2">Hence for older clients to work a different local protocol or a network protocol must be used, these are not enabled by default and must be manually enabled.</font></span></p>
<p align="left"><span><font face="Arial" size="2"><em>SQL Browser Service</em></font></span></p>
<p align="left"><span><font face="Arial" size="2">In general when a client connects remotely to a SQL Server named instance the client does not know the port that the instance is listening on(you can work around this by configuring SQL Server named instances to listen on a specific port and then specifying that port in the connection string in the format &lt;servername&gt;,&lt;port number&gt;)</font></span><span></span><span></span></p>
<p align="left"><span><font face="Arial" size="2">So when an application attempts to connect to a named instance in the form &lt;servername&gt;\&lt;instancename&gt; the client connection needs to be directed to the correct port. In SQL Server 2000 one of the running services had a built in listener that received the named instance connection requests and redirected them appropriately.</font></span></p>
<p align="left"><span><font face="Arial" size="2">In SQL Server 2005 this functionality has been moved to a dedicated listener service, that service is SQLBrowser. </font></span></p>
<p align="left"><span><font face="Arial" size="2">SQLBrowser also performs another service, that of SQL Server Discovery, its common in many UIs from Microsoft and others to have the ability to browse for instances of SQL Server running locally or remotely, again in SQL Server 2000 this was handled by one of the running instances of SQL Server, in SQL Server 2005 this is handled by the SQLBrowser Service.</font></span></p>
<p align="left"><span><font face="Arial" size="2">Thus the SQLBrowser Service must be started to be able to discover any instance on the machine, and also to connect to named instances through protocols other than shared memory. If network protocols are not enabled via the setup switch then the browser service is not set to autostart.</font></span></p>
<p align="left"><span><font face="Arial" size="2"><em>SQL Native Client</em></font></span></p>
<p align="left"><span><font face="Arial" size="2">SQL Server native connectivity is defined as connectivity through OLE DB(ADO uses OLE DB under the covers) or ODBC means in SQL Server 2005 (dblib is not an included as a data access technology in SQL Server 2005).</font></span></p>
<p align="left"><span><font face="Arial" size="2">In previous releases of SQL Server(SQL7 and SQL2000) an update to MDAC was preferred for client apps, this means the installation of an entire MDAC update for SQL Server connectivity. In SQL Server 2005 we no longer require an MDAC update as we have refactored out the SQL Server specific connectivity components for OLE DB and ODBC.</font></span></p>
<p align="left"><span><font face="Arial" size="2">As such in SQL Server 2005 no MDAC update is required to connect(although MDAC 2.8 is preferred, any MDAC from Windows 2000 SP3 upwards is supported), but a new component is required. This component is referred to as SQL Native Access. </font></span></p>
<p align="left"><span><font face="Arial" size="2">These components include support for OLE DB and ODBC accessed through a single .dll called: SQLNCLI.dll, this file and its support  files are redistributable.</font></span></p>
<p align="left"><span><font face="Arial" size="2">SQL Native Client is NOT required for managed data access via .Net APIs.</font></span></p>
<p align="left"><span></span></p>
<p align="left"><span><font face="Arial" size="2">-Euan Garden</font></span></p>
<p align="left"><span><font face="Arial" size="2">Product Unit Manager</font></span></p>
<p align="left"><span><font face="Arial" size="2">SQL Server Tools</font></span></p>
<p align="left"><strong>Connection URL JDBC<u> MICROSOFT</u>: </strong>jdbc:sqlserver://localhost\SQLEXPRESS;databaseName=teste</p>
<p align="left"><strong>Connection URL JDBC <u>JTDS</u></strong> : jdbc:jtds:sqlserver://localhost:1433/TESTE;instance=SQLEXPRESS</p>
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		<title>Arquitetura de AplicaÃ§Ã£o</title>
		<link>http://vgoes.wordpress.com/2007/05/28/arquitetura-de-aplicacao/</link>
		<comments>http://vgoes.wordpress.com/2007/05/28/arquitetura-de-aplicacao/#comments</comments>
		<pubDate>Mon, 28 May 2007 17:41:54 +0000</pubDate>
		<dc:creator>vgoes</dc:creator>
				<category><![CDATA[Uncategorized]]></category>

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		<description><![CDATA[- camada UI(User Interface): Nesta camada vc implementa a interface com usuÃ¡rio. Ex: formulario Cliente, formulario Contas, etc&#8230; - camada de comunicaÃ§Ã£o: Aqui, Ã© implementado a comunicaÃ§Ã£o com as outras camadas do sistema. Por exemplo vc pode definir um ValueObject( objeto genÃ©rico que conterÃ¡ os dados da interface grÃ¡fica) que serÃ¡ utilizado pela camada de [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=vgoes.wordpress.com&amp;blog=939358&amp;post=18&amp;subd=vgoes&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>- camada UI(User Interface): Nesta camada vc implementa a interface com usuÃ¡rio. Ex: formulario Cliente, formulario Contas, etc&#8230;</p>
<p>- camada de comunicaÃ§Ã£o: Aqui, Ã© implementado a comunicaÃ§Ã£o com as outras camadas do sistema. Por exemplo vc pode definir um ValueObject( objeto genÃ©rico que conterÃ¡ os dados da interface grÃ¡fica) que serÃ¡ utilizado pela camada de acesso aos dados. o Value Object pode ser uma interface e pode ser definido uma implementaÃ§Ã£o para cada formulario q vc tenha.</p>
<p>- camada de negocios Nesta camada vc implementa os objetos que encapsularÃ£o os dados que serÃ£o persistentes(gravados/recuperados do BD). Ex: Cliente, Conta.</p>
<p>- Camada de Acesso aos dados: nesta camada vc implementa os DAOs, que tem a resposabilidade de se comunicar com o banco de dados, atravÃ©s das &#8216;querys&#8217;. Ex: DaoCliente, DaoConta, etc&#8230;</p>
<p><img src="///C:/DOCUME%7E1/Vladimir/CONFIG%7E1/Temp/moz-screenshot.jpg" /> <img src="///C:/DOCUME%7E1/Vladimir/CONFIG%7E1/Temp/moz-screenshot-1.jpg" /><span class="postbody"><br />
Na epoca estavam discutindo que a MVC implementa 1 camada (e nÃ£o 3&#8230;.). Eu entendi o conceito (camada de apresentaÃ§Ã£o=MVC) mas como os padrÃµes mudam e hoje existe camada pra tudo queria saber como isso estÃ¡ hoje??&#8230; eu li muito sobre o assunto e minha opiniÃ£o Ã© mais o menos o que essa figura diz&#8230; <img src="http://www.javafree.org/javabb/forum/images/smiles/icon_wink.gif" /></p>
<p><img src="http://www.myjavaserver.com/%7Epangole/estrutura.gif" alt="0" border="0" /><br />
</span><span class="postbody">- Camadas == Layers<br />
O padrÃ£o que descreve a separaÃ§Ã£o do sistema em camadas Ã© o Layers, publicado em [Busch98] (referÃªncias no final). Este padrÃ£o mostra uma divisÃ£o do sistema em camadas, onde idealmente uma camada conhece e acessa apenas a camada imediatamente inferior, ou no mÃ¡ximo as camadas adjacentes.</p>
<p>- MVC = Model-View-Controller<br />
PadrÃ£o usado na implementaÃ§Ã£o do toolkit grÃ¡fico do Smalltalk. Uma descriÃ§Ã£o pode ser encontrada <a href="http://st-www.cs.uiuc.edu/users/smarch/st-docs/mvc.html" target="_new">aqui</a>.</p>
<p>Eu acredito que a confusÃ£o existe por causa da correspondÃªncia numÃ©rica que muitas vezes ocorre entre os padrÃµes: MVC e ApresentaÃ§Ã£o/NegÃ³cio/PersistÃªncia. EntÃ£o, muitos acham que Ã© a mesma coisa, o que nÃ£o Ã© verdade.</p>
<p>O padrÃ£o MVC, como implementado no Swing, funciona da seguinte maneira:<br />
O componente recebe o input do usuÃ¡rio, interpertando-as; este componente envia ao modelo as alteraÃ§Ãµes causadas pelo input; se o modelo for alterado, este envia uma notificaÃ§Ã£o Ã s views (que tambÃ©m sÃ£o componentes), que por sua vez solicitam ao modelo os novos dados, para que possam se atualizar. Aqui pode se notar um triÃ¢ngulo, Controlador -&gt; Modelo -&gt; VisualizaÃ§Ã£o -&gt; Controlador. Assim, o conceito de separaÃ§Ã£o em camadas nÃ£o Ã© vÃ¡lido, pois a vizualizaÃ§Ã£o acessa diretamente o modelo (isto Ã©, nÃ£o existe a separaÃ§Ã£o estrita em camadas).<br />
</span></p>
<p><span class="postbody">Idealmente, acredito que o MVC faz parte da camada de apresentaÃ§Ã£o (como era no conceito original), e nÃ£o como divisor de camadas (o que deturpa o conceito de MVC e confunde a separaÃ§Ã£o correta em camadas).</span></p>
<p><span class="postbody">A minha concepÃ§Ã£o ainda Ã© semelhante (MVC Ã© parte da camada de apresentaÃ§Ã£o), embora o modelo, como dito na discussÃ£o, pode ter conceitos distintos.<br />
Acho que o seu diagrama simplifica um pouco o paradigma de arquitetura, e assim sendo, deveria distribuir melhor os componentes de negÃ³cio.</p>
<p>Um exemplo Ã© que um web service nÃ£o concentra suas atividades no modelo de negÃ³cio.<br />
Ã‰ mais uma interface de comunicaÃ§Ã£o com outros sistemas e portanto, faria parte de uma camada chamada &#8220;integraÃ§Ã£o&#8221;.<br />
O mesmo se daria com cÃ³digos como RMI, ou CORBA por exemplo.<br />
DAO&#8217;s fariam parte da camada de persistÃªncia.<br />
Session Beans fariam parte da camada de negÃ³cio, assim como os DTO&#8217;s (que fariam parte do Model do MVC).<br />
PorÃ©m, Entity Beans fazem parte da camada de persistÃªncia. Assim como outras alternativas como LDAP.</p>
<p>Certo?</p>
<p>Arquitetura de sistemas muitas vezes Ã© semelhante a um jogo de xadrez: possui certo nÃ­vel de subjetividade e muitas vezes, um mesmo problema pode ter diversas soluÃ§Ãµes com arquiteturas bem distintas e igualmente eficazes.Â  </span></p>
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		<title>Gerando JPA com myEclipse</title>
		<link>http://vgoes.wordpress.com/2007/05/27/gerando-jpa-com-myeclipse/</link>
		<comments>http://vgoes.wordpress.com/2007/05/27/gerando-jpa-com-myeclipse/#comments</comments>
		<pubDate>Sun, 27 May 2007 20:14:56 +0000</pubDate>
		<dc:creator>vgoes</dc:creator>
				<category><![CDATA[Java]]></category>

		<guid isPermaLink="false">http://vgoes.wordpress.com/2007/05/27/gerando-jpa-com-myeclipse/</guid>
		<description><![CDATA[1. Myeclipse JPA Tutorial. Precisei alterar o cÃ³digo gerado para incluir o controle de transaÃ§Ã£o para efetivamente ocorrer as atualizaÃ§Ãµes no BD. public void save(Counselors transientInstance) { EntityManagerHelper.log(&#8220;saving Counselors instance&#8221;, Level.INFO, null); try { Â Â Â  Â Â Â  Â Â Â  EntityManagerHelper.beginTransaction(); getEntityManager().persist(transientInstance); Â Â Â  EntityManagerHelper.commit(); EntityManagerHelper.log(&#8220;save successful&#8221;, Level.INFO, null); } catch (RuntimeException re) { EntityManagerHelper.log(&#8220;save failed&#8221;, Level.SEVERE, re); throw [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=vgoes.wordpress.com&amp;blog=939358&amp;post=17&amp;subd=vgoes&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>1. Myeclipse JPA Tutorial.</p>
<p>Precisei alterar o cÃ³digo gerado para incluir o controle de transaÃ§Ã£o para efetivamente ocorrer as atualizaÃ§Ãµes no BD.</p>
<p>public void save(Counselors transientInstance) {<br />
EntityManagerHelper.log(&#8220;saving Counselors instance&#8221;, Level.INFO, null);<br />
try {</p>
<p><strong>Â Â Â  Â Â Â  Â Â Â  EntityManagerHelper.beginTransaction();</strong><br />
getEntityManager().persist(transientInstance);<br />
<strong>Â Â Â  EntityManagerHelper.commit();</strong><br />
EntityManagerHelper.log(&#8220;save successful&#8221;, Level.INFO, null);<br />
} catch (RuntimeException re) {<br />
EntityManagerHelper.log(&#8220;save failed&#8221;, Level.SEVERE, re);<br />
throw re;<br />
}<br />
}</p>
<p>public void delete(Counselors persistentInstance) {<br />
EntityManagerHelper.log(&#8220;deleting Counselors instance&#8221;, Level.INFO,<br />
null);<br />
try {<br />
<strong>Â Â Â  Â Â Â  Â Â Â  EntityManagerHelper.beginTransaction();</strong><br />
getEntityManager().remove(persistentInstance);<br />
<strong>Â Â  Â Â Â  EntityManagerHelper.commit();</strong><br />
EntityManagerHelper.log(&#8220;delete successful&#8221;, Level.INFO, null);<br />
} catch (RuntimeException re) {<br />
EntityManagerHelper.log(&#8220;delete failed&#8221;, Level.SEVERE, re);<br />
throw re;<br />
}<br />
}</p>
<p>public Counselors update(Counselors detachedInstance) {<br />
EntityManagerHelper.log(&#8220;updating Counselors instance&#8221;, Level.INFO,<br />
null);<br />
try {<br />
<strong>EntityManagerHelper.beginTransaction();</strong><br />
Counselors result = getEntityManager().merge(detachedInstance);<br />
<strong>Â Â  EntityManagerHelper.commit();</strong><br />
EntityManagerHelper.log(&#8220;update successful&#8221;, Level.INFO, null);<br />
return result;<br />
} catch (RuntimeException re) {<br />
EntityManagerHelper.log(&#8220;update failed&#8221;, Level.SEVERE, re);<br />
throw re;<br />
}<br />
}</p>
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		<title>DDD</title>
		<link>http://vgoes.wordpress.com/2007/05/19/ddd/</link>
		<comments>http://vgoes.wordpress.com/2007/05/19/ddd/#comments</comments>
		<pubDate>Sat, 19 May 2007 01:32:18 +0000</pubDate>
		<dc:creator>vgoes</dc:creator>
				<category><![CDATA[Uncategorized]]></category>

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		<description><![CDATA[http://fragmental.com.br/wiki/index.php?title=Evitando_VOs_e_BOs<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=vgoes.wordpress.com&amp;blog=939358&amp;post=14&amp;subd=vgoes&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>http://fragmental.com.br/wiki/index.php?title=Evitando_VOs_e_BOs</p>
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		<title>Links NetBeans</title>
		<link>http://vgoes.wordpress.com/2007/05/17/links-netbeans/</link>
		<comments>http://vgoes.wordpress.com/2007/05/17/links-netbeans/#comments</comments>
		<pubDate>Thu, 17 May 2007 18:22:39 +0000</pubDate>
		<dc:creator>vgoes</dc:creator>
				<category><![CDATA[Java]]></category>

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		<description><![CDATA[http://weblogs.java.net/blog/tpavek/archive/2006/02/getting_to_know_2.html http://www.developer.com/java/ent/print.php/3589961 Installing SwingX Components in NetBeans<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=vgoes.wordpress.com&amp;blog=939358&amp;post=13&amp;subd=vgoes&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p><a href="http://">http://weblogs.java.net/blog/tpavek/archive/2006/02/getting_to_know_2.html</a></p>
<p><a href="http://">http://www.developer.com/java/ent/print.php/3589961</a></p>
<h3><a href="http://swinglabs.org/docs/ide/netbeans/install-components/tutorial.jsp">Installing SwingX Components in NetBeans</a></h3>
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		<title>GeraÃ§Ã£o de Entities JPA pelo NetBeans (New Entitiy Classes From Database&#8230;)</title>
		<link>http://vgoes.wordpress.com/2007/05/16/geracao-de-entities-jpa-pelo-netbeans-new-entitiy-classes-from-database/</link>
		<comments>http://vgoes.wordpress.com/2007/05/16/geracao-de-entities-jpa-pelo-netbeans-new-entitiy-classes-from-database/#comments</comments>
		<pubDate>Wed, 16 May 2007 17:36:48 +0000</pubDate>
		<dc:creator>vgoes</dc:creator>
				<category><![CDATA[Java]]></category>

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		<description><![CDATA[Precisei alterar o cÃ³digo gerado no seguinte : Incluir o import : import javax.persistence.CascadeType; Alterar o cascade: @OneToMany(cascade = CascadeType.ALL, mappedBy = &#8220;customerId&#8221;)<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=vgoes.wordpress.com&amp;blog=939358&amp;post=12&amp;subd=vgoes&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>Precisei alterar o cÃ³digo gerado no seguinte :</p>
<p>Incluir o import : <font color="#999999">import javax.persistence.CascadeType; </font></p>
<p>Alterar o cascade: <font color="#999999">@OneToMany(cascade = <font color="#000000"><strong>CascadeType.ALL</strong></font>, mappedBy = &#8220;customerId&#8221;)</font></p>
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		<title>Criando uma biblioteca de classes Hibernate</title>
		<link>http://vgoes.wordpress.com/2007/05/13/criando-uma-biblioteca-de-classes-hibernate/</link>
		<comments>http://vgoes.wordpress.com/2007/05/13/criando-uma-biblioteca-de-classes-hibernate/#comments</comments>
		<pubDate>Sun, 13 May 2007 21:15:12 +0000</pubDate>
		<dc:creator>vgoes</dc:creator>
				<category><![CDATA[Java]]></category>

		<guid isPermaLink="false">http://vgoes.wordpress.com/2007/05/13/criando-uma-biblioteca-de-classes-hibernate/</guid>
		<description><![CDATA[VocÃª comeÃ§a esse tutorial fazendo o download dos arquivos de biblioteca do Hibernate e usando a ferramenta Gerenciador de bibliotecas a fim de disponibilizar para o IDE as bibliotecas do Hibernate. FaÃ§a o download de hibernate-3.2.2.ga.zip em www.hibernate.org e extraia os arquivos. ObservaÃ§Ã£o: Neste tutorial, os exemplos usam o Hibernate 3.2.2 e os arquivos JAR [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=vgoes.wordpress.com&amp;blog=939358&amp;post=11&amp;subd=vgoes&amp;ref=&amp;feed=1" width="1" height="1" />]]></description>
			<content:encoded><![CDATA[<p>VocÃª comeÃ§a esse tutorial fazendo o download dos arquivos de biblioteca do Hibernate e usando a ferramenta Gerenciador de bibliotecas a fim de disponibilizar para o IDE as bibliotecas do Hibernate.</p>
<ol>
<li>FaÃ§a o download de <code>hibernate-3.2.2.ga.zip</code> em <a href="http://www.hibernate.org/" target="_blank">www.hibernate.org</a> e extraia os arquivos. <strong>ObservaÃ§Ã£o:</strong> Neste tutorial, os exemplos usam o Hibernate 3.2.2 e os arquivos JAR associados oferecidos com esta versÃ£o. Se vocÃª estiver usando outra versÃ£o, os nÃºmeros de versÃ£o e os nomes de bibliotecas do JAR podem variar. AlÃ©m disso, a lista de bibliotecas JAR para adiÃ§Ã£o pode ser diferente.</li>
<li>No IDE, escolha Ferramentas &gt; Gerenciador de bibliotecas no menu principal.</li>
<li>Clique em Nova biblioteca, digite <code>Hibernate322</code> no campo Nome da biblioteca e clique em OK.</li>
<li>    Clique em Adicionar JAR/Pasta e vÃ¡ ao diretÃ³rio no qual extraiu os arquivos do Hibernate.</li>
<li>Selecione <code>hibernate3.jar</code> e pressione Enter.</li>
<li>Clique em Adicionar JAR/Pasta novamente e vÃ¡ atÃ© o subdiretÃ³rio <code>lib</code>.</li>
<li>Use Ctrl-clique para selecionar os 10 arquivos JAR seguintes e pressione Enter. Se nÃ£o estiver usando a versÃ£o 3.2.2, consulte o <a href="http://www.hibernate.org/">site do Hibernate</a> para determinar que arquivos JAR devem ser selecionados.
<ul>
<li><code>ant-1.6.5.jar</code></li>
<li><code>antlr-2.7.6.jar</code></li>
<li><code>asm-attrs.jar</code></li>
<li><code>asm.jar</code></li>
<li><code>cglib-2.1.3.jar</code></li>
<li><code>commons-logging-1.00,4.jar</code></li>
<li><code>commons-collections-2.1.1.jar</code></li>
<li><code>dom4j-1.6.1.jar</code></li>
<li><code>ehcache-1.2.3.jar</code></li>
<li><code>jdbc2_0-stdext.jar</code></li>
</ul>
<p>A figura abaixo ilustra a biblioteca do Hibernate na janela Gerenciador de bibliotecas.</p>
<p><!-- BEGIN FIGURE COMPONENT --></p>
<table border="0" cellpadding="2" cellspacing="0" width="572">
<tr>
<td align="center"><img src="http://www.netbeans.org/images/articles/vwp-hibernate/library-manager_pt_BR.png" alt="Janela Gerenciador de bibliotecas exibindo a biblioteca do Hibernate" border="0" height="431" width="612" /><br />
<strong>Figura 1</strong>: Janela Gerenciador de bibliotecas exibindo a biblioteca do Hibernate</td>
</tr>
</table>
<p><!-- END FIGURE COMPONENT --></li>
<li>Se estiver implantando o aplicativo no servidor Tomcat, vocÃª deve adicionar tambÃ©m o <code>jta.jar</code> do diretÃ³rio <code>lib</code> do Hibernate.</li>
<li>Para tornar o Javadoc do Hibernate disponÃ­vel no Editor Java, selecione a guia Javadoc, clique em Adicionar ZIP/Pasta, vÃ¡ atÃ© o diretÃ³rio no qual extraiu os arquivos do Hibernate, selecione o subdiretÃ³rio <code>doc/api</code> e pressione Enter.</li>
<li>(Opcional) Se quiser realizar a depuraÃ§Ã£o total das classes Hibernate durante a sessÃ£o de depuraÃ§Ã£o, clique na guia Fontes, clique em Adicionar ZIP/Pasta, vÃ¡ atÃ© o diretÃ³rio no qual extraiu os arquivos do Hibernate, selecione o subdiretÃ³rio <code>src</code> e pressione Enter.</li>
<li>Clique em OK para fechar o Gerenciador de bibliotecas.</li>
</ol>
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