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package org.apache.tapestry.contrib.tree.components.table; |
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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.*; |
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import org.apache.tapestry.event.PageDetachListener; |
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import org.apache.tapestry.event.PageEvent; |
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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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public abstract class TreeTableDataView extends BaseComponent implements |
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ITreeRowSource, 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() |
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.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 List 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(arrAllExpandedNodes, objRoot, objRootUID, 0, |
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objTreeModel, TreeRowObject.FIRST_LAST_ROW, 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() |
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.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() |
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.getChildren(objRoot); iter.hasNext();) |
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{ |
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Object objChild = iter.next(); |
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Object objChildUID = objTreeModel.getTreeDataModel() |
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.getUniqueKey(objChild, 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 nRowPossiotionType = TreeRowObject.MIDDLE_ROW; |
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} |
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walkTree(arrAllExpandedNodes, objChild, objChildUID, 0, |
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objTreeModel, nRowPossiotionType, 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, |
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Object objParentUID, int nDepth, ITreeModel objTreeModel, |
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int nRowPossiotionType, int[] arrConnectImages, boolean bLast) |
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{ |
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int rowPositionType = nRowPossiotionType; |
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m_nTreeDeep = nDepth; |
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int nNumberOfChildren = objTreeModel.getTreeDataModel().getChildCount( |
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objParent); |
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boolean bLeaf = (nNumberOfChildren == 0) ? true : false; |
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TreeRowObject objTreeRowObject = new TreeRowObject(objParent, |
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objParentUID, nDepth, bLeaf, rowPositionType, |
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arrConnectImages); |
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arrAllExpandedNodes.add(objTreeRowObject); |
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boolean bContain = objTreeModel.getTreeStateModel() |
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.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, |
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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 arrConnectImagesNew[arrConnectImagesNew.length - 1] = TreeRowObject.LINE_CONN_IMG; |
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Iterator colChildren = objTreeModel.getTreeDataModel().getChildren( |
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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() |
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.getUniqueKey(objChild, objParentUID); |
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boolean bChildLast = !iter.hasNext(); |
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if (bChildLast) |
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rowPositionType = TreeRowObject.LAST_ROW; |
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else rowPositionType = TreeRowObject.MIDDLE_ROW; |
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walkTree(arrAllExpandedNodes, objChild, objChildUID, |
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nDepth + 1, objTreeModel, rowPositionType, |
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arrConnectImagesNew, 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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List 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( |
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arrAllExpandedNodes, 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) arrColumnsList.addAll(arrTableColunms); |
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ITableColumn[] arrColumns = new ITableColumn[arrColumnsList.size()]; |
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arrColumnsList.toArray(arrColumns); |
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return arrColumns; |
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} |
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public abstract List getTableColumnsParameter(); |
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public abstract int getEntriesPerTablePage(); |
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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( |
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generateNodeList()); |
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SimpleTableColumnModel objColumnModel = new SimpleTableColumnModel( |
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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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protected void renderComponent(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.renderComponent(writer, cycle); |
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cycle.setAttribute(ITreeRowSource.TREE_ROW_SOURCE_ATTRIBUTE, |
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objExistedTreeModelSource); |
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} |
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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, |
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objExistedTreeModelSource); |
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} |
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public TreeRowObject getTreeRowObject() |
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{ |
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return m_objTreeRowObject; |
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} |
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public void setTreeRowObject(TreeRowObject object) |
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{ |
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m_objTreeRowObject = object; |
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} |
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public abstract boolean getShowRootNode(); |
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} |