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return value from AdvancedCache.lock
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created by <a href="http://community.jboss.org/people/millerm120">Mark Miller</a> in <i>JBoss Cache</i> - <a href="http://community.jboss.org/message/641094#641094">View the full discussion</a>
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<div class="jive-rendered-content"><p>The AdvancedCache.lock methods return a boolean which according to the JavaDoc is true if lock acquired and false if it is not acquired.</p><table><tbody><tr><td style=";"></td><td style=";">* @return true if the lock acquisition attempt was successful for <i>all</i> keys; false otherwise.</td></tr></tbody></table><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>All of the sample code I have seen looks like this:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p class="container" style="min-height: 8pt; height: 8pt; padding: 0px;" title="Hint: double-click to select code"> </p><div class="line number1 index0 alt2"><code class="java plain">   tx.begin() </code><p class="line number2 index1 alt1"><code class="java spaces">   </code><code class="java plain">cache.lock(K)    </code><code class="java comments">// acquire cluster wide lock on K</code></p><p class="line number3 index2 alt2"><code class="java spaces">   </code><code class="java plain">cache.put(K,V5)  </code><code class="java comments">// guaranteed to succeed </code></p><p class="line number4 index3 alt1"><code class="java spaces">   </code><code class="java plain">tx.commit()      </code><code class="java comments">// releases locks</code></p><p class="line number4 index3 alt1" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p class="line number4 index3 alt1">and does not check the return value of the lock call.</p></div><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Is it possible for the call to lock to return false or will it always either return true or throw an exception?</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Thanks in advance,</p><p>Mark</p></div>
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