Template method
Use template for transactions
try-catch blocks are particularly common when using APIs which
give an important role to checked exceptions (such as SQLException
in JDBC). When using such an API, many published examples simply repeat
the same try-catch code structure whenever necessary. However,
it's simple to eliminate such code repetition using the template
method pattern. The idea is to define the structure of the try-catch
block in one place, in an abstract base class (ABC). Such an ABC is then
extended whenever that particular try-catch block is needed. The
concrete implementation of such an ABC will often have simple, "straight
line" code.
An extended example of this technique is given in the Use
template for transactions topic.