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Dbstl Exception Classes < / th >
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Dbstl Exception Classes < / h2 >
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< 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 > DbstlException< / a >
, which is the base class for all types of dbstl specific concrete exception classes. < a class = "link" href = "DbstlException.html" title = "Chapter > 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 > 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 >
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DbstlException< / td >
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NotEnoughMemoryException< / td >
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InvalidIteratorException< / a >
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InvalidIteratorException< / td >
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InvalidCursorException< / td >
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InvalidDbtException< / td >
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FailedAssertionException< / td >
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NoSuchKeyException< / td >
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InvalidArgumentException< / a >
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InvalidArgumentException< / td >
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NotSupportedException< / td >
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InvalidFunctionCall< / td >
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