Widgets: Table: Removing rows from tables leaks memory
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Key: XAP-545
URL: https://issues.apache.org/jira/browse/XAP-545
Project: XAP
Issue Type: Bug
Components: Widgets: Table/Tree/TreeTable
Reporter: Trevor Oldak
Run the following xal
<xal xmlns="http://openxal.org/ui"; xmlns:xal="http://openxal.org/ui";>
<macro:macro id="addMultiRow"
xmlns:macro="http://openxal.org/core/macro";>
<xm:modifications xmlns:xm="http://openxal.org/core/xmodify";>
<xm:append select="//table">
<row>
<cell text="New Cell 1"/>
<cell text="New Cell 2"/>
<cell text="New Cell 3"/>
</row>
<row>
<cell text="New Cell 4"/>
<cell text="New Cell 5"/>
<cell text="New Cell 6"/>
</row>
</xm:append>
</xm:modifications>
</macro:macro>
<macro:macro id="removeRows"
xmlns:macro="http://openxal.org/core/macro";>
<xm:modifications xmlns:xm="http://openxal.org/core/xmodify";>
<xm:remove-element select="//row"/>
</xm:modifications>
</macro:macro>
<freePane width="500px" height="300px"
id="testComponentFreePane">
<table x="100px" y="0px">
<column>
<header text="r:Column
1"/>
</column>
<column
horizontalAlignment="right" width="80px">
<header text="c:Column
2"/>
</column>
<column id="column3">
<header text="d:Column
3"/>
</column>
<row>
<cell text="x"/>
<cell text="y"/>
<cell text="z"/>
</row>
<row>
<cell
text="aaaaaaaaaaaaaaaaaa"/>
<cell text="c:bbbbbb"
horizontalAlignment="center" />
<cell text="ccccc"/>
</row>
</table>
<button text="add"
onCommand="macro:addMultiRow.execute()" x="0px" y="0px"/>
<button text="remove"
onCommand="macro:removeRows.execute()" x="0px" y="30px"/>
</freePane>
</xal>
Click 'remove' to remove rows from the table, 'add' to add rows. One would
expect that each addition/removal cycle would leave the table with the same
number of nodes in use. However, removal doesn't just not free up nodes, but it
uses two more nodes each time it is run.
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