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Diffstat (limited to 'system/doc/design_principles/gen_server_concepts.xml')
| -rw-r--r-- | system/doc/design_principles/gen_server_concepts.xml | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/system/doc/design_principles/gen_server_concepts.xml b/system/doc/design_principles/gen_server_concepts.xml index 8131c47a69..231333da0e 100644 --- a/system/doc/design_principles/gen_server_concepts.xml +++ b/system/doc/design_principles/gen_server_concepts.xml @@ -264,6 +264,11 @@ terminate(normal, State) -> handle_info({'EXIT', Pid, Reason}, State) -> ..code to handle exits here.. {noreply, State1}.</code> + <p>The code_change method also has to be implemented.</p> + <code type="none"> +code_change(OldVsn, State, Extra) -> + ..code to convert state (and more) during code change + {ok, NewState}.</code> </section> </chapter> |