Problems with the iterator implementation in RowSetTreeImpl class
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Key: TRINIDAD-1185
URL: https://issues.apache.org/jira/browse/TRINIDAD-1185
Project: MyFaces Trinidad
Issue Type: Improvement
Components: Components
Affects Versions: 1.2.9-core
Reporter: Kamran Kashanian
Attachments: rowkeyset.1.2.9.1.patch, trunk1.2.x.patch
The iterator implementation (PathIterator) in the Trinidad RowKeySetTreeImpl
class has the following problems:
1) It loops over the tree model even if the set is empty
2) It loops over the tree model even if the set contains no "default contained"
nodes. "Default contained" nodes are "Expand All", "Select All", "Expand All
Below", etc nodes.
For large tree models, unnecessary looping over the tree model can be
expensive, since it can force the model to perform additional data fetches
(beyond what is currently displayed in the view port on the client).
The attached patch provides a new iterator implementation called NodeIterator,
which extends the current PathIterator and avoids unnecessary looping over the
tree model. NodeIterator loops over the model *only* if it encounters "default
contained" nodes in the set.
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