<?xml version="1.0" encoding="UTF-8" standalone="no"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <title>Chapter 29. Dbstl Exception Classes</title> <link rel="stylesheet" href="apiReference.css" type="text/css" /> <meta name="generator" content="DocBook XSL Stylesheets V1.73.2" /> <link rel="start" href="index.html" title="Berkeley DB C++ Standard Template Library API Reference" /> <link rel="up" href="index.html" title="Berkeley DB C++ Standard Template Library API Reference" /> <link rel="prev" href="stlReadModifyWriteOptionno_read_modify_write.html" title="no_read_modify_write" /> <link rel="next" href="DbstlException.html" title="Chapter 30. DbstlException" /> </head> <body> <div class="navheader"> <table width="100%" summary="Navigation header"> <tr> <th colspan="3" align="center">Chapter 29. Dbstl Exception Classes </th> </tr> <tr> <td width="20%" align="left"><a accesskey="p" href="stlReadModifyWriteOptionno_read_modify_write.html">Prev</a> </td> <th width="60%" align="center"> </th> <td width="20%" align="right"> <a accesskey="n" href="DbstlException.html">Next</a></td> </tr> </table> <hr /> </div> <div class="chapter" lang="en" xml:lang="en"> <div class="titlepage"> <div> <div> <h2 class="title"><a id="Exception_classes_group"></a>Chapter 29. Dbstl Exception Classes </h2> </div> </div> </div> <p>dbstl throws several types of exceptions on several kinds of errors, the exception classes form a class hiarachy. </p> <p>First, there is the <a class="link" href="DbstlException.html" title="Chapter 30. DbstlException">DbstlException</a> , which is the base class for all types of dbstl specific concrete exception classes. <a class="link" href="DbstlException.html" title="Chapter 30. DbstlException">DbstlException</a> inherits from the class DbException of Berkeley DB C++ API. Since DbException class inherits from C++ STL exception base class std::exception, you can make use of all Berkeley DB C++ and dbstl API exceptions in the same way you use the C++ std::exception class.</p> <p>Besides exceptions of <a class="link" href="DbstlException.html" title="Chapter 30. DbstlException">DbstlException</a> and its subclasses, dbstl may also throw exceptions of DbException and its subclasses, which happens when a Berkeley DB call failed. So you should use the same way you catch Berkeley DB C++ API exceptions when you want to catch exceptions throw by Berkeley DB operations.</p> <p>When an exception occurs, dbstl initialize an local exception object on the stack and throws the exception object, so you should catch an exception like this:</p> <p>try { dbstl operations } catch(DbstlException ex){ Exception handling throw ex; // Optionally throw ex again } </p> <h4><a id="id1574278"></a> Public Members </h4> <div class="informaltable"> <table border="1" width="80%"> <colgroup> <col /> <col /> </colgroup> <thead> <tr> <th>Member</th> <th>Description</th> </tr> </thead> <tbody> <tr> <td> <a class="link" href="DbstlException.html" title="Chapter 30. DbstlException"> DbstlException</a> </td> <td> DbstlException</td> </tr> <tr> <td> <a class="link" href="NotEnoughMemoryException.html" title="Chapter 35. NotEnoughMemoryException"> NotEnoughMemoryException</a> </td> <td> NotEnoughMemoryException</td> </tr> <tr> <td> <a class="link" href="InvalidIteratorException.html" title="Chapter 37. InvalidIteratorException"> InvalidIteratorException</a> </td> <td> InvalidIteratorException</td> </tr> <tr> <td> <a class="link" href="InvalidCursorException.html" title="Chapter 33. InvalidCursorException"> InvalidCursorException</a> </td> <td> InvalidCursorException</td> </tr> <tr> <td> <a class="link" href="InvalidDbtException.html" title="Chapter 31. InvalidDbtException"> InvalidDbtException</a> </td> <td> InvalidDbtException</td> </tr> <tr> <td> <a class="link" href="FailedAssertionException.html" title="Chapter 32. FailedAssertionException"> FailedAssertionException</a> </td> <td> FailedAssertionException</td> </tr> <tr> <td> <a class="link" href="NoSuchKeyException.html" title="Chapter 34. NoSuchKeyException"> NoSuchKeyException</a> </td> <td> NoSuchKeyException</td> </tr> <tr> <td> <a class="link" href="InvalidArgumentException.html" title="Chapter 39. InvalidArgumentException"> InvalidArgumentException</a> </td> <td> InvalidArgumentException</td> </tr> <tr> <td> <a class="link" href="NotSupportedException.html" title="Chapter 36. NotSupportedException"> NotSupportedException</a> </td> <td> NotSupportedException</td> </tr> <tr> <td> <a class="link" href="InvalidFunctionCall.html" title="Chapter 38. InvalidFunctionCall"> InvalidFunctionCall</a> </td> <td> InvalidFunctionCall</td> </tr> </tbody> </table> </div> <h4><a id="id1574658"></a> Group</h4> <p> None</p> </div> <div class="navfooter"> <hr /> <table width="100%" summary="Navigation footer"> <tr> <td width="40%" align="left"><a accesskey="p" href="stlReadModifyWriteOptionno_read_modify_write.html">Prev</a> </td> <td width="20%" align="center"> </td> <td width="40%" align="right"> <a accesskey="n" href="DbstlException.html">Next</a></td> </tr> <tr> <td width="40%" align="left" valign="top"> no_read_modify_write </td> <td width="20%" align="center"> <a accesskey="h" href="index.html">Home</a> </td> <td width="40%" align="right" valign="top"> Chapter 30. DbstlException </td> </tr> </table> </div> </body> </html>