java - IResourceChangeEvent - how to identify a project delete/rename -

java - IResourceChangeEvent - how to identify a project delete/rename -

how can distinguish, within iresourcechangelistener added via resourceplugin.getworkspace().addresourcechangelistener(...) project deleted / renamed?

through trying things out, seem iresourcechangeevent.getdelta() -> iresourcedelta answer.

from eclipse api:

after-the-fact batch reports of arbitrary creations, deletions , modifications 1 or more resources expressed hierarchical resource delta. event type post_change, , getdelta returns hierarchical delta. resource delta rooted @ workspace root. these events broadcast interested parties after set of resource changes , happen whether or not autobuilding enabled. workspace closed alter during notification of these events. delta reported in event cycle identical across listeners registered type of event.

edit: adding findings far

so, event.gettype() post_change , there needs either

a delta contains kid iresourcedelta has getkind() == removed deletion, , delta getresource().gettype() == project know it's project ( iresourcedelta should not have children )

a getdelta() contains 2 children iresourcedelta have getkind() == removed , getkind() == added, getresource().gettype() == project, , iresourcedelta contain no children deltas (i've observed when file renamed/deleted, iproject resource belongs 1 on first row of children of parent delta...)

can confirm supposition? if necessary tree depth search children realize if event of project rename/delete or file/folder?

you need add together resource alter listener via resourceplugin.getworkspace().addresourcechangelistener(listener, iresourcechangeevent.post_change)

in listener, utilize iresourcedeltavisitor visit changes in delta via event.getdelta().accept(...)

the visitor should projects removed

if expecting project removed , created same name (as happens files & folders during build events), in add-on removed, replaced in delta

java eclipse eclipse-rcp eclipse-plugin