[richfaces-svn-commits] JBoss Rich Faces SVN: r901 - in trunk/sandbox/scrollable-grid/src/main/java/org/richfaces/model: cashe and 1 other directory.

[richfaces-svn-commits at lists.jboss.org]

Author: abelevich
Date: 2007-05-28 14:11:47 -0400 (Mon, 28 May 2007)
New Revision: 901

Added:
   trunk/sandbox/scrollable-grid/src/main/java/org/richfaces/model/cashe/
   trunk/sandbox/scrollable-grid/src/main/java/org/richfaces/model/cashe/DataGridCache.java
Log:


Added: trunk/sandbox/scrollable-grid/src/main/java/org/richfaces/model/cashe/DataGridCache.java
===================================================================
--- trunk/sandbox/scrollable-grid/src/main/java/org/richfaces/model/cashe/DataGridCache.java	                        (rev 0)
+++ trunk/sandbox/scrollable-grid/src/main/java/org/richfaces/model/cashe/DataGridCache.java	2007-05-28 18:11:47 UTC (rev 901)
@@ -0,0 +1,158 @@
+/*
+ *  Copyright
+ *      Copyright (c) Exadel,Inc. 2007
+ *      All rights reserved.
+ *  
+ *  History
+ *      $Source: /cvs-master/intralinks-jsf-comps/components/data-view-grid/src/component/com/exadel/jsf/model/cache/DataGridCache.java,v $
+ *      $Revision: 1.2 $ 
+ */
+
+package org.richfaces.model.cashe;
+
+import java.io.IOException;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.Map;
+
+import javax.faces.context.FacesContext;
+import javax.faces.model.DataModelListener;
+
+import org.ajax4jsf.ajax.repeat.DataVisitor;
+import org.ajax4jsf.ajax.repeat.Range;
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.richfaces.model.DataRange;
+import org.richfaces.model.ScrollableGridDataModel2;
+import org.richfaces.model.SortOrder;
+import org.richfaces.model.snapshot.ObjectLocator;
+
+
+
+/**
+ * @author Maksim Kaszynski
+ *
+ */
+public class DataGridCache extends ScrollableGridDataModel2 {
+
+	private final static Log log = LogFactory.getLog(DataGridCache.class);
+	
+	private ScrollableGridDataModel2 dataModel;
+	private Map cache = new HashMap();
+	
+	public DataGridCache(ScrollableGridDataModel2 model) {
+		dataModel = model;
+	}
+	
+	public void walk(FacesContext context, DataVisitor visitor, Range range, Object argument) throws IOException {
+		dataModel.walk(context, visitor, range, argument);
+	}
+	
+	/**
+	 * @see com.exadel.jsf.model.ScrollableGridDataModel2#createDataRange(int, int, com.exadel.jsf.model.SortOrder)
+	 */
+	protected DataRange createDataRange(int startRow, int endRow,
+			SortOrder sortOrder) {
+		return null;
+	}
+
+	/**
+	 * @see javax.faces.model.DataModel#getRowCount()
+	 */
+	public int getRowCount() {
+		return dataModel.getRowCount();
+	}
+
+	/**
+	 * @see javax.faces.model.DataModel#getRowIndex()
+	 */
+	public int getRowIndex() {
+		return dataModel.getRowIndex();
+	}
+
+	/**
+	 * @see javax.faces.model.DataModel#getWrappedData()
+	 */
+	public Object getWrappedData() {
+		return dataModel;
+	}
+
+	/**
+	 * @see javax.faces.model.DataModel#isRowAvailable()
+	 */
+	public boolean isRowAvailable() {
+		return dataModel.isRowAvailable();
+	}
+
+	/**
+	 * @see javax.faces.model.DataModel#setRowIndex(int)
+	 */
+	public void setRowIndex(int rowIndex) {
+		dataModel.setRowIndex(rowIndex);
+	}
+
+	/**
+	 * @see javax.faces.model.DataModel#setWrappedData(java.lang.Object)
+	 */
+	public void setWrappedData(Object data) {
+		dataModel = (ScrollableGridDataModel2) data;
+	}
+
+	public ObjectLocator getObjectLocator() {
+		return dataModel.getObjectLocator();
+	}
+
+	public Object getRowData() {
+		Object rowKey = getRowKey();
+		Object data = null;
+		if (rowKey != null) {
+			data = cache.get(rowKey);
+			if (data == null) {
+				if (log.isDebugEnabled()) {
+					log.debug("DataGridCache.getRowData() - cache miss: rowKey " + rowKey); 
+				}
+				data = dataModel.getRowData();
+				cache.put(rowKey, data);
+			} else {
+				log.debug("DataGridCache.getRowData() - cache hit: rowKey " + rowKey); 
+			}
+		} else {
+			log.debug("DataGridCache.getRowData() rowKey is null"); 
+		}
+		return data;
+	}
+
+	public Object getRowKey() {
+		return dataModel.getRowKey();
+	}
+
+//	public Collection getSelectedObjects() {
+//		return dataModel.getSelectedObjects();
+//	}
+
+//	public Selection getSelection() {
+//		return dataModel.getSelection();
+//	}
+
+	public void removeDataModelListener(DataModelListener listener) {
+		dataModel.removeDataModelListener(listener);
+	}
+
+	public void reset() {
+		dataModel.reset();
+	}
+
+	public void setObjectLocator(ObjectLocator objectLocator) {
+		dataModel.setObjectLocator(objectLocator);
+	}
+
+	public void setRowKey(Object key) {
+		dataModel.setRowKey(key);
+	}
+
+//	public void setSelection(Selection selection) {
+//		dataModel.setSelection(selection);
+//	}
+	
+
+}