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32            <h2 class="title" style="clear: both"><a id="EnvClose"></a>Closing Database Environments</h2>
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36      <p>
37    You close your environment by calling the 
38    <code class="methodname">Environment.close()</code>
39    method. This method performs a checkpoint, so it is not necessary to perform a sync or a checkpoint explicitly
40    before calling it. For information on checkpoints, see the
41    <em class="citetitle">Berkeley DB Java Edition Getting Started with Transaction Processing</em> guide.
42    For information on syncs, see 
43    
44    
45    <span>
46    the <em class="citetitle">Getting Started with Transaction Processing for Java</em> guide.
47    </span>
48    </p>
49      <pre class="programlisting">import com.sleepycat.db.DatabaseException;
50
51import com.sleepycat.db.Environment;
52
53...
54
55try {
56    if (myDbEnvironment != null) {
57        myDbEnvironment.close();
58    } 
59} catch (DatabaseException dbe) {
60    // Exception handling goes here
61} </pre>
62      <p>You should close your environment(s) only after all other
63    database activities have completed and you have closed any databases
64    currently opened in the environment.</p>
65      <p>
66    Closing the last environment handle in your application causes all
67    internal data structures to be 
68    
69    <span>
70            released.
71    </span>
72    
73    
74    
75    If there are any opened databases or stores, 
76    then DB will complain before closing them as well. 
77    At this time, any open cursors are also closed, and any on-going transactions are aborted.
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