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package org.apache.tapestry.contrib.tree.components.table;
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import java.util.ArrayList;
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import java.util.Iterator;
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import java.util.List;
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import org.apache.tapestry.BaseComponent;
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import org.apache.tapestry.IMarkupWriter;
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import org.apache.tapestry.IRequestCycle;
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import org.apache.tapestry.contrib.table.model.ITableColumn;
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import org.apache.tapestry.contrib.table.model.ITableModel;
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import org.apache.tapestry.contrib.table.model.ITableSessionStateManager;
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import org.apache.tapestry.contrib.table.model.simple.SimpleListTableDataModel;
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import org.apache.tapestry.contrib.table.model.simple.SimpleTableColumnModel;
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import org.apache.tapestry.contrib.table.model.simple.SimpleTableModel;
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import org.apache.tapestry.contrib.table.model.simple.SimpleTableSessionStateManager;
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import org.apache.tapestry.contrib.tree.model.ITreeDataModel;
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import org.apache.tapestry.contrib.tree.model.ITreeModel;
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import org.apache.tapestry.contrib.tree.model.ITreeModelSource;
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import org.apache.tapestry.contrib.tree.model.ITreeRowSource;
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import org.apache.tapestry.contrib.tree.model.TreeRowObject;
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import org.apache.tapestry.event.PageDetachListener;
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import org.apache.tapestry.event.PageEvent;
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public abstract class TreeTableDataView extends BaseComponent implements ITreeRowSource,
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PageDetachListener
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{
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private int m_nTreeDeep = -1;
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private TreeRowObject m_objTreeRowObject = null;
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private ArrayList m_arrAllExpandedNodes = null;
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public TreeTableDataView()
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{
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super();
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initialize();
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}
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public void initialize()
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{
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m_nTreeDeep = -1;
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m_objTreeRowObject = null;
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m_arrAllExpandedNodes = null;
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}
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public void pageDetached(PageEvent event)
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{
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initialize();
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}
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public abstract ITreeModelSource getTreeViewParameter();
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public ITreeModelSource getTreeModelSource()
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{
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ITreeModelSource objSource = (ITreeModelSource) getPage().getRequestCycle().getAttribute(
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ITreeModelSource.TREE_MODEL_SOURCE_ATTRIBUTE);
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return objSource == null ? getTreeViewParameter() : objSource;
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}
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public ArrayList generateNodeList()
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{
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if (m_arrAllExpandedNodes == null)
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{
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ArrayList arrAllExpandedNodes = new ArrayList();
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ITreeModelSource objTreeModelSource = getTreeModelSource();
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ITreeModel objTreeModel = objTreeModelSource.getTreeModel();
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ITreeDataModel objTreeDataModel = objTreeModel.getTreeDataModel();
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Object objRoot = objTreeDataModel.getRoot();
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Object objRootUID = objTreeDataModel.getUniqueKey(objRoot, null);
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if (getShowRootNode())
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{
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walkTree(
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arrAllExpandedNodes,
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objRoot,
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objRootUID,
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0,
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objTreeModel,
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TreeRowObject.FIRST_LAST_ROW,
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new int[0],
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true);
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}
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else
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{
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int nChildenCount = objTreeModel.getTreeDataModel().getChildCount(objRoot);
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int nRowPossiotionType = nChildenCount == 1 ? TreeRowObject.FIRST_LAST_ROW
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: TreeRowObject.FIRST_ROW;
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boolean bFirst = true;
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for (Iterator iter = objTreeModel.getTreeDataModel().getChildren(objRoot); iter
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.hasNext();)
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{
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Object objChild = iter.next();
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Object objChildUID = objTreeModel.getTreeDataModel().getUniqueKey(
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objChild,
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objRoot);
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boolean bChildLast = !iter.hasNext();
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if (!bFirst)
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{
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if (bChildLast)
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nRowPossiotionType = TreeRowObject.LAST_ROW;
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else
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nRowPossiotionType = TreeRowObject.MIDDLE_ROW;
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}
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walkTree(
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arrAllExpandedNodes,
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objChild,
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objChildUID,
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0,
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objTreeModel,
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nRowPossiotionType,
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new int[0],
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bChildLast);
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bFirst = false;
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}
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}
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m_arrAllExpandedNodes = arrAllExpandedNodes;
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}
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return m_arrAllExpandedNodes;
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}
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public void walkTree(ArrayList arrAllExpandedNodes, Object objParent, Object objParentUID,
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int nDepth, ITreeModel objTreeModel, int nRowPossiotionType, int[] arrConnectImages,
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boolean bLast)
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{
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m_nTreeDeep = nDepth;
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int nNumberOfChildren = objTreeModel.getTreeDataModel().getChildCount(objParent);
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boolean bLeaf = (nNumberOfChildren == 0) ? true : false;
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TreeRowObject objTreeRowObject = new TreeRowObject(objParent, objParentUID, nDepth, bLeaf,
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nRowPossiotionType, arrConnectImages);
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arrAllExpandedNodes.add(objTreeRowObject);
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boolean bContain = objTreeModel.getTreeStateModel().isUniqueKeyExpanded(objParentUID);
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if (bContain)
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{
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int[] arrConnectImagesNew = new int[arrConnectImages.length + 1];
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System.arraycopy(arrConnectImages, 0, arrConnectImagesNew, 0, arrConnectImages.length);
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if (bLast)
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arrConnectImagesNew[arrConnectImagesNew.length - 1] = TreeRowObject.EMPTY_CONN_IMG;
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else
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arrConnectImagesNew[arrConnectImagesNew.length - 1] = TreeRowObject.LINE_CONN_IMG;
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Iterator colChildren = objTreeModel.getTreeDataModel().getChildren(objParent);
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for (Iterator iter = colChildren; iter.hasNext();)
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{
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Object objChild = iter.next();
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Object objChildUID = objTreeModel.getTreeDataModel().getUniqueKey(
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objChild,
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objParentUID);
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boolean bChildLast = !iter.hasNext();
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if (bChildLast)
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nRowPossiotionType = TreeRowObject.LAST_ROW;
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else
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nRowPossiotionType = TreeRowObject.MIDDLE_ROW;
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walkTree(
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arrAllExpandedNodes,
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objChild,
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objChildUID,
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nDepth + 1,
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objTreeModel,
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nRowPossiotionType,
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arrConnectImagesNew,
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bChildLast);
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}
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}
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}
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public int getTreeDeep()
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{
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return m_nTreeDeep;
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}
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public ITableModel getTableModel()
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{
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return createTableModel();
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}
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private ITableModel createTableModel()
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{
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ArrayList arrAllNodes = generateNodeList();
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Object[] arrAllExpandedNodes = new Object[arrAllNodes.size()];
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arrAllNodes.toArray(arrAllExpandedNodes);
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SimpleTableModel objTableModel = new SimpleTableModel(arrAllExpandedNodes,
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getTableColunms());
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objTableModel.getPagingState().setPageSize(getEntriesPerTablePage());
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return objTableModel;
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}
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public ITableColumn[] getTableColunms()
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{
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ArrayList arrColumnsList = new ArrayList();
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arrColumnsList.add(new TreeTableColumn("Name", false, null));
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List arrTableColunms = getTableColumnsParameter();
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if (arrTableColunms != null)
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arrColumnsList.addAll(arrTableColunms);
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ITableColumn[] arrColumns = new ITableColumn[arrColumnsList.size()];
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arrColumnsList.toArray(arrColumns);
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237
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return arrColumns;
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}
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240
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public abstract List getTableColumnsParameter();
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242
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public abstract int getEntriesPerTablePage();
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244
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245
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246
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public TreeRowObject getTreeRow()
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{
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return getTreeRowObject();
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}
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public ITableSessionStateManager getTableSessionStateManager()
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{
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SimpleListTableDataModel objDataModel = new SimpleListTableDataModel(generateNodeList());
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SimpleTableColumnModel objColumnModel = new SimpleTableColumnModel(getTableColunms());
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SimpleTableSessionStateManager objStateManager = new SimpleTableSessionStateManager(
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objDataModel, objColumnModel);
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return objStateManager;
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}
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262
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263
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265
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protected void renderComponent(IMarkupWriter arg0, IRequestCycle cycle)
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{
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Object objExistedTreeModelSource = cycle
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.getAttribute(ITreeRowSource.TREE_ROW_SOURCE_ATTRIBUTE);
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cycle.setAttribute(ITreeRowSource.TREE_ROW_SOURCE_ATTRIBUTE, this);
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272
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super.renderComponent(arg0, cycle);
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cycle.setAttribute(ITreeRowSource.TREE_ROW_SOURCE_ATTRIBUTE, objExistedTreeModelSource);
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}
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277
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278
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279
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280
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public void renderBody(IMarkupWriter writer, IRequestCycle cycle)
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{
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Object objExistedTreeModelSource = cycle
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.getAttribute(ITreeRowSource.TREE_ROW_SOURCE_ATTRIBUTE);
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cycle.setAttribute(ITreeRowSource.TREE_ROW_SOURCE_ATTRIBUTE, this);
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super.renderBody(writer, cycle);
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cycle.setAttribute(ITreeRowSource.TREE_ROW_SOURCE_ATTRIBUTE, objExistedTreeModelSource);
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}
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292
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public TreeRowObject getTreeRowObject()
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{
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return m_objTreeRowObject;
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295
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}
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296
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297
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public void setTreeRowObject(TreeRowObject object)
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{
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m_objTreeRowObject = object;
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300
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}
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301
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302
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public abstract boolean getShowRootNode();
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303
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}
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