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org.openide.nodes 7.7.3 | |||||||||
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See:
Description
Nodes API | |
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org.openide.cookies | Cookies are a design pattern used to add behaviors to existing data object and nodes, or to separate implementation from the main object. |
org.openide.nodes | NetBeans uses nodes to represent JavaBeans or other property containers, formed into a hierarchical tree. |
org.openide.util.actions |
Children.Keys
with lazy behavior can be created by using Children.Keys(boolean lazy)
.
Children.getNodesCount(boolean optimalResult)
can be
used instead of Children.getNodes(boolean optimalResult)
for children "initialization". While keeping same behavior as
Children.getNodes(boolean optimalResult)
for "default"
(non-lazy) implementation it allows full initialization without need to
create all nodes. Children.snapshot()
creates an immutable snapshot representing
the current view of the nodes in this children object. Such snapshots are available in
NodeMemberEvent and
NodeReorderEvent
via getSnapshot()
and provide information about state of nodes
in time when events were emited.
Adding possibility to get node at specific position rather than whole array of nodes.
Added the class ChildFactory and the method Children.create(ChildFactory factory, boolean asynchronous) to the API. This simplifies creation of Node children which need to be computed on a background thread for performance reasons. Anyone wishing to do this can simply extend ChildFactory and pass that to Children.create() to automatically get a Node that will display a Please Wait child node when first expanded. A ChildFactory can either compute all child nodes, or batch them in multiple passes.
ChildFactory can also be used to implement synchronous children,
by setting the asynchronous
parameter passed to
Children.create()
to false. This could replace most
common usages of Children.Keys, and make it easy to switch to
asynchronous child computation if that is determined to be
necessary for performance reasons.
New method
CookieSet.createGeneric has been added. It allows to create
an instance of
CookieSet that can contain any object, not just
Cookies.
This addition change is accompanied with two additional changes:
CookieSet now implements
Lookup.Provider and thus has a method getLookup
to
allow queries for of its content.
Also there is a new method
assign(clazz, instances) that allows to add/remove
plain old java objects to the CookieSet
.
Adding a new constructors to BeanNode
, allowing
subclasses to pass context Lookup.
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Read more about the implementation in the answers to architecture questions.
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org.openide.nodes 7.7.3 | |||||||||
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