<p dir="ltr">Csak beéri a java is a modern nyelveket... :P</p>
<div class="gmail_quote">2014.03.28. 8:37 ezt írta ("Auth Gábor (Confluence)" <<a href="mailto:wiki@javaforum.hu">wiki@javaforum.hu</a>>):<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<td valign="middle" style="padding:0px;border-collapse:collapse;vertical-align:middle;font-family:Arial,sans-serif;font-size:14px;line-height:20px">Auth Gábor <strong>created</strong> a blog post</td>
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<td style="padding:0px;border-collapse:collapse;width:16px;padding:9px 8px 0px 0px"><a href="http://wiki.javaforum.hu/display/JAVAFORUM/2014/03/28/JINQ?src=email" title="blogpost icon" style="vertical-align:top;color:#3b73af;text-decoration:none" target="_blank"><img style="vertical-align:top;display:block" src="cid:blogpost-icon" alt="blogpost icon" title="blogpost icon" height="16" width="16" border="0"></a></td>
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<td style="vertical-align:top;padding:0px;border-collapse:collapse;padding-right:5px;font-size:20px;line-height:30px"><span style="font-family:Arial,sans-serif;padding:0;font-size:20px;line-height:30px;vertical-align:middle"><a href="http://wiki.javaforum.hu/display/JAVAFORUM/2014/03/28/JINQ?src=email" title="JINQ" style="color:#3b73af;text-decoration:none" target="_blank">JINQ</a></span></td>
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<td style="padding:0px;border-collapse:collapse;padding:0 0 0 24px"> <p style="margin:10px 0 0 0;margin-top:0">Érdekes kezdeményezés a <a href="http://www.jinq.org" rel="nofollow" style="color:#3b73af;text-decoration:none" target="_blank">JINQ</a>, amely kombinálja a Lambda expression technológiát az adatbázis lekérdezésekkel.</p>
<p style="margin:10px 0 0 0">Nézzük például az alábbi JDBC lekérdezést:</p>
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<pre style="font-size:12px;margin:10px 0 0 0;margin-top:0">PreparedStatement s = con.prepareStatement("SELECT * "
+ "FROM Customer C "
+ "WHERE C.Name = ? ");
s.setString(1, "Alice");
ResultSet rs = s.executeQuery();</pre>
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</div> <p style="margin:10px 0 0 0"> </p> <p style="margin:10px 0 0 0">E Helyett JINQ használatával az alábbi "lekérdezést" kell megejtenünk:</p>
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<pre style="font-size:12px;margin:10px 0 0 0;margin-top:0">database.getCustomers().where(
customer -> customer.getName().equals("Alice"));</pre>
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</div> <p style="margin:10px 0 0 0"> </p> <p style="margin:10px 0 0 0">A leírás szerint teljes <em>stream</em> támogatása is van, tehát működnek a <em>filter</em>, a <em>map</em> és a <em>reduce</em> megoldások is:</p>
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<pre style="font-size:12px;margin:10px 0 0 0;margin-top:0">customers.stream()
.filter( c -> c.getName().equals("Alice") )
.map( c -> c.getAddress() );</pre>
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</div> <p style="margin:10px 0 0 0"> </p> <p style="margin:10px 0 0 0">Egy próbát megér... JPA-val kombinálva nagyon jó eszköznek néz ki. <img src="http://wiki.javaforum.hu/s/en_GB-1988229788/4727/ffd10e10ff7bc0a1d7e29b4d2225707dd7f03d0b.13/_/images/icons/emoticons/smile.png" alt="(smile)" style="vertical-align:middle"></p>
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