com.sun.webui.jsf.renderkit.html.TableRowGroupRenderer Maven / Gradle / Ivy
/*
* The contents of this file are subject to the terms
* of the Common Development and Distribution License
* (the License). You may not use this file except in
* compliance with the License.
*
* You can obtain a copy of the license at
* https://woodstock.dev.java.net/public/CDDLv1.0.html.
* See the License for the specific language governing
* permissions and limitations under the License.
*
* When distributing Covered Code, include this CDDL
* Header Notice in each file and include the License file
* at https://woodstock.dev.java.net/public/CDDLv1.0.html.
* If applicable, add the following below the CDDL Header,
* with the fields enclosed by brackets [] replaced by
* you own identifying information:
* "Portions Copyrighted [year] [name of copyright owner]"
*
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
*/
package com.sun.webui.jsf.renderkit.html;
import com.sun.faces.annotation.Renderer;
import com.sun.data.provider.RowKey;
import com.sun.webui.jsf.component.Table;
import com.sun.webui.jsf.component.TableColumn;
import com.sun.webui.jsf.component.TableRowGroup;
import com.sun.webui.theme.Theme;
import com.sun.webui.jsf.theme.ThemeStyles;
import com.sun.webui.jsf.util.LogUtil;
import com.sun.webui.jsf.util.RenderingUtilities;
import com.sun.webui.jsf.util.ThemeUtilities;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import javax.faces.component.NamingContainer;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
/**
* This class renders TableRowGroup components.
*
* The TableRowGroup component provides a layout mechanism for displaying rows
* of data. UI guidelines describe specific behavior that can applied to the
* rows and columns of data such as sorting, filtering, pagination, selection,
* and custom user actions. In addition, UI guidelines also define sections of
* the table that can be used for titles, row group headers, and placement of
* pre-defined and user defined actions.
*
* Note: Column headers and footers are rendered by TableRowGroupRenderer. Table
* column footers are rendered by TableRenderer.
*
* Note: To see the messages logged by this class, set the following global
* defaults in your JDK's "jre/lib/logging.properties" file.
*
* java.util.logging.ConsoleHandler.level = FINE
* com.sun.webui.jsf.renderkit.html.TableRowGroupRenderer.level = FINE
*
* See TLD docs for more information.
*
*/
@Renderer(@Renderer.Renders(componentFamily = "com.sun.webui.jsf.TableRowGroup"))
public class TableRowGroupRenderer extends javax.faces.render.Renderer {
/**
* The set of String pass-through attributes to be rendered.
*
* Note: The BGCOLOR attribute is deprecated (in the HTML 4.0 spec) in favor
* of style sheets. In addition, the DIR and LANG attributes are not
* cuurently supported.
*
*/
private static final String stringAttributes[] = {
"align", //NOI18N
"bgColor", //NOI18N
"char", //NOI18N
"charOff", //NOI18N
"dir", //NOI18N
"lang", //NOI18N
"onClick", //NOI18N
"onDblClick", //NOI18N
"onKeyDown", //NOI18N
"onKeyPress", //NOI18N
"onKeyUp", //NOI18N
"onMouseDown", //NOI18N
"onMouseUp", //NOI18N
"onMouseMove", //NOI18N
"onMouseOut", //NOI18N
"onMouseOver", //NOI18N
"style", //NOI18N
"valign"}; //NOI18N
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Renderer methods
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/**
* Render the beginning of the specified UIComponent to the output stream or
* writer associated with the response we are creating.
*
* @param context FacesContext for the current request.
* @param component UIComponent to be rendered.
*
* @exception IOException if an input/output error occurs.
* @exception NullPointerException if context or component is null.
*/
@Override
public void encodeBegin(FacesContext context, UIComponent component)
throws IOException {
if (context == null || component == null) {
log("encodeBegin", //NOI18N
"Cannot render, FacesContext or UIComponent is null"); //NOI18N
throw new NullPointerException();
}
if (!component.isRendered()) {
log("encodeBegin", "Component not rendered, nothing to display"); //NOI18N
return;
}
TableRowGroup group = (TableRowGroup) component;
ResponseWriter writer = context.getResponseWriter();
// Render group and column headers.
if (group.isAboveColumnHeader()) {
renderGroupHeader(context, group, writer);
renderColumnHeaders(context, group, writer);
} else {
renderColumnHeaders(context, group, writer);
renderGroupHeader(context, group, writer);
}
group.setRowKey(null); // Clean up.
}
/**
* Render the children of the specified UIComponent to the output stream or
* writer associated with the response we are creating.
*
* @param context FacesContext for the current request.
* @param component UIComponent to be decoded.
*
* @exception IOException if an input/output error occurs.
* @exception NullPointerException if context or component is null.
*/
@Override
public void encodeChildren(FacesContext context, UIComponent component)
throws IOException {
if (context == null || component == null) {
log("encodeChildren", //NOI18N
"Cannot render, FacesContext or UIComponent is null"); //NOI18N
throw new NullPointerException();
}
if (!component.isRendered()) {
log("encodeChildren", "Component not rendered, nothing to display"); //NOI18N
return;
}
TableRowGroup group = (TableRowGroup) component;
ResponseWriter writer = context.getResponseWriter();
// Render empty data message.
if (group.getRowCount() == 0) {
log("encodeChildren", "Cannot render data, row count is zero"); //NOI18N
renderEmptyDataColumn(context, group, writer);
return;
}
// Get rendered row keys.
RowKey[] rowKeys = group.getRenderedRowKeys();
if (rowKeys == null) {
log("encodeChildren", "Cannot render data, RowKey array is null"); //NOI18N
return;
}
// Iterate over the rendered RowKey objects.
for (int i = 0; i < rowKeys.length; i++) {
group.setRowKey(rowKeys[i]);
if (!group.isRowAvailable()) {
log("encodeChildren", "Cannot render data, row not available"); //NOI18N
break;
}
// Render row.
renderEnclosingTagStart(context, group, writer, i);
// Render children.
Iterator kids = group.getTableColumnChildren();
while (kids.hasNext()) {
TableColumn col = (TableColumn) kids.next();
if (!col.isRendered()) {
log("encodeChildren", //NOI18N
"TableColumn not rendered, nothing to display"); //NOI18N
continue;
}
// Render column.
RenderingUtilities.renderComponent(col, context);
}
renderEnclosingTagEnd(writer);
}
group.setRowKey(null); // Clean up.
}
/**
* Render the ending of the specified UIComponent to the output stream or
* writer associated with the response we are creating.
*
* @param context FacesContext for the current request.
* @param component UIComponent to be rendered.
*
* @exception IOException if an input/output error occurs.
* @exception NullPointerException if context or component is null.
*/
@Override
public void encodeEnd(FacesContext context, UIComponent component)
throws IOException {
if (context == null || component == null) {
log("encodeEnd", //NOI18N
"Cannot render, FacesContext or UIComponent is null"); //NOI18N
throw new NullPointerException();
}
if (!component.isRendered()) {
log("encodeEnd", "Component not rendered, nothing to display"); //NOI18N
return;
}
TableRowGroup group = (TableRowGroup) component;
ResponseWriter writer = context.getResponseWriter();
// Do not render footers for an empty table.
if (group.getRowCount() == 0) {
log("encodeEnd", //NOI18N
"Column, group, and table footers not rendered, row count is zero"); //NOI18N
return;
}
// Render group and column footers.
if (group.isAboveColumnFooter()) {
renderGroupFooter(context, group, writer);
renderColumnFooters(context, group, writer);
} else {
renderColumnFooters(context, group, writer);
renderGroupFooter(context, group, writer);
}
// Do not render table footers for an empty table.
Table table = group.getTableAncestor();
if (table.getRowCount() > 0) {
renderTableColumnFooters(context, group, writer);
} else {
log("encodeEnd", //NOI18N
"Table column footers not rendered, row count is zero"); //NOI18N
}
group.setRowKey(null); // Clean up.
}
/**
* Return a flag indicating whether this Renderer is responsible
* for rendering the children the component it is asked to render.
* The default implementation returns false.
*/
@Override
public boolean getRendersChildren() {
return true;
}
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Empty data methods
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/**
* Render empty data message for TableRowGroup components.
*
* @param context FacesContext for the current request.
* @param component TableRowGroup to be rendered.
* @param writer ResponseWriter to which the component should be rendered.
*
* @exception IOException if an input/output error occurs.
*/
protected void renderEmptyDataColumn(FacesContext context,
TableRowGroup component, ResponseWriter writer) throws IOException {
if (component == null) {
log("renderEmptyDataColumn", //NOI18N
"Cannot render empty data column, TableRowGroup is null"); //NOI18N
return;
}
// Render row start.
renderEnclosingTagStart(context, component, writer, -1);
// Render empty data column.
writer.writeText("\n", null); //NOI18N
RenderingUtilities.renderComponent(component.getEmptyDataColumn(),
context);
renderEnclosingTagEnd(writer);
}
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Column methods
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/**
* Render column footers for TableRowGroup components.
*
* Note: Although not currently a requirement, nested TableColumn children
* could render column footers that look like:
*
*
* | | 1 | 2 | | 3 | 4 | 5 | 6 | |
* | A | B | C | D | E |
*
*
* In this case, components would be rendered on separate rows. For example,
* the HTML would look like:
*
*
*
*
* A
* 1
* 2
* C
* 3
* 4
* 5
* 6
* E
*
*
* B
* D
*
*
*
* * However, the current implementation will render only the first row, which * would look like: *
*
* | A | 1 | 2 | C | 3 | 4 | 5 | 6 | E |
*
*
* @param context FacesContext for the current request.
* @param component TableRowGroup to be rendered.
* @param writer ResponseWriter to which the component should be rendered.
*
* @exception IOException if an input/output error occurs.
*/
protected void renderColumnFooters(FacesContext context,
TableRowGroup component, ResponseWriter writer) throws IOException {
if (component == null) {
log("renderColumnFooters", //NOI18N
"Cannot render column footers, TableRowGroup is null"); //NOI18N
return;
}
// Get Map of List objects containing nested TableColumn children.
Map map = getColumnFooterMap(component);
// Render nested TableColumn children on separate rows.
Theme theme = getTheme();
Table table = component.getTableAncestor();
for (int c = 0; c < map.size(); c++) {
// The default is to show one level only.
if (c > 0 && !component.isMultipleColumnFooters()) {
log("renderColumnFooters", //NOI18N
"Multiple column footers not rendered, nothing to display"); //NOI18N
break;
}
// Flag to keep from rendering empty tag when no headers are displayed.
boolean renderStartElement = true;
// Get List of nested TableColumn children.
List list = (List) map.get(new Integer(c));
for (int i = 0; i < list.size(); i++) {
TableColumn col = (TableColumn) list.get(i);
if (!col.isRendered()) {
log("renderColumnFooters", //NOI18N
"TableColumn not rendered, nothing to display"); //NOI18N
continue;
}
// Get group footer.
UIComponent footer = col.getColumnFooter();
if (!(footer != null && footer.isRendered())) {
log("renderColumnFooters", //NOI18N
"Column footer not rendered, nothing to display"); //NOI18N
continue;
}
// Render start element.
if (renderStartElement) {
renderStartElement = false;
writer.writeText("\n", null); //NOI18N
writer.startElement("tr", component); //NOI18N
writer.writeAttribute("id", getId(component, //NOI18N
TableRowGroup.COLUMN_FOOTER_BAR_ID +
NamingContainer.SEPARATOR_CHAR + c), null);
// Render style class.
if (component.isCollapsed()) {
writer.writeAttribute("class", //NOI18N
theme.getStyleClass(ThemeStyles.HIDDEN), null); //NOI18N
}
}
// Render footer.
RenderingUtilities.renderComponent(footer, context);
}
// If start element was rendered, this value will be false.
if (!renderStartElement) {
writer.endElement("tr"); //NOI18N
}
}
}
/**
* Render column headers for TableRowGroup components.
* * Note: Although not typical, nested TableColumn children may render column * headers that look like: *
*
* | A | B | C | D | E |
* | | 1 | 2 | | 3 | 4 | 5 | 6 | |
*
* * In this case, components would be rendered on separate rows. For example, * the HTML would look like: *
*
* | A | *B | *C | *D | *E | *||||
|---|---|---|---|---|---|---|---|---|
| 1 | *2 | *3 | *4 | *5 | *6 | *|||
* Note: Although not currently a requirement, nested TableColumn children * could render column footers that look like: *
*
* | | 1 | 2 | | 3 | 4 | 5 | 6 | |
* | A | B | C | D | E |
*
* * In this case, components would be rendered on separate rows. For example, * the HTML would look like: *
*
* | A | *1 | *2 | *C | *3 | *4 | *5 | *6 | *E | *
|---|---|---|---|---|---|---|---|---|
| B | *D | *|||||||
* However, the current implementation will render only the first row, which * would look like: *
*
* | A | 1 | 2 | C | 3 | 4 | 5 | 6 | E |
*
*
* @param context FacesContext for the current request.
* @param component TableRowGroup to be rendered.
* @param writer ResponseWriter to which the component should be rendered.
*
* @exception IOException if an input/output error occurs.
*/
protected void renderTableColumnFooters(FacesContext context,
TableRowGroup component, ResponseWriter writer) throws IOException {
if (component == null) {
log("renderTableColumnFooters", //NOI18N
"Cannot render table column footers, TableRowGroup is null"); //NOI18N
return;
}
// Get Map of List objects containing nested TableColumn children.
Map map = getColumnFooterMap(component);
// Render nested TableColumn children on separate rows.
Theme theme = getTheme();
Table table = component.getTableAncestor();
for (int c = 0; c < map.size(); c++) {
// The default is to show one level only.
if (c > 0 && table != null && !component.isMultipleTableColumnFooters()) {
log("renderTableColumnFooters", //NOI18N
"Multiple table column footers not rendered, nothing to display"); //NOI18N
break;
}
// Flag to keep from rendering empty tag when no headers are displayed.
boolean renderStartElement = true;
// Get List of nested TableColumn children.
List list = (List) map.get(new Integer(c));
for (int i = 0; i < list.size(); i++) {
TableColumn col = (TableColumn) list.get(i);
if (!col.isRendered()) {
log("renderTableColumnFooters", //NOI18N
"TableColumn not rendered, nothing to display"); //NOI18N
continue;
}
// Get group footer.
UIComponent footer = col.getTableColumnFooter();
if (!(footer != null && footer.isRendered())) {
log("renderTableColumnFooters", //NOI18N
"Table column footer not rendered, nothing to display"); //NOI18N
continue;
}
// Render start element.
if (renderStartElement) {
renderStartElement = false;
writer.writeText("\n", null); //NOI18N
writer.startElement("tr", component); //NOI18N
writer.writeAttribute("id", getId(component, //NOI18N
TableRowGroup.TABLE_COLUMN_FOOTER_BAR_ID +
NamingContainer.SEPARATOR_CHAR + c), null);
// Render style class.
//
// Note: We must determine if column footers are available
// for all or individual TableRowGroup components. That is,
// there could be a single column footer for all row groups
// or one for each group. Thus, footers may only be hidden
// when there is more than one column footer.
if (component.isCollapsed() && table.getColumnHeadersCount() > 1) {
writer.writeAttribute("class", //NOI18N
theme.getStyleClass(ThemeStyles.HIDDEN), null); //NOI18N
}
}
// Render header.
RenderingUtilities.renderComponent(footer, context);
}
// If start element was rendered, this value will be false.
if (!renderStartElement) {
writer.endElement("tr"); //NOI18N
}
}
}
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Group methods
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/**
* Render group footer for TableRowGroup components.
*
* @param context FacesContext for the current request.
* @param component TableRowGroup to be rendered.
* @param writer ResponseWriter to which the component should be rendered.
*
* @exception IOException if an input/output error occurs.
*/
protected void renderGroupFooter(FacesContext context,
TableRowGroup component, ResponseWriter writer) throws IOException {
if (component == null) {
log("renderGroupFooter", //NOI18N
"Cannot render group footer, TableRowGroup is null"); //NOI18N
return;
}
// Get group footer.
UIComponent footer = component.getGroupFooter();
if (!(footer != null && footer.isRendered())) {
log("renderGroupFooter", //NOI18N
"Group footer not rendered, nothing to display"); //NOI18N
return;
}
Theme theme = getTheme();
writer.writeText("\n", null); //NOI18N
writer.startElement("tr", component); //NOI18N
writer.writeAttribute("id", getId(component, //NOI18N
TableRowGroup.GROUP_FOOTER_BAR_ID), null);
// Render style class.
if (component.isCollapsed()) {
writer.writeAttribute("class", //NOI18N
theme.getStyleClass(ThemeStyles.HIDDEN), null); //NOI18N
}
// Render footer.
RenderingUtilities.renderComponent(footer, context);
writer.endElement("tr"); //NOI18N
}
/**
* Render group header for TableRowGroup components.
*
* @param context FacesContext for the current request.
* @param component TableRowGroup to be rendered.
* @param writer ResponseWriter to which the component should be rendered.
*
* @exception IOException if an input/output error occurs.
*/
protected void renderGroupHeader(FacesContext context,
TableRowGroup component, ResponseWriter writer) throws IOException {
if (component == null) {
log("renderGroupHeader", //NOI18N
"Cannot render group header, TableRowGroup is null"); //NOI18N
return;
}
// Get group header.
UIComponent header = component.getGroupHeader();
if (!(header != null && header.isRendered())) {
log("renderGroupHeader", //NOI18N
"Group header not rendered, nothing to display"); //NOI18N
return;
}
Theme theme = getTheme();
writer.writeText("\n", null); //NOI18N
writer.startElement("tr", component); //NOI18N
writer.writeAttribute("id", getId(component, //NOI18N
TableRowGroup.GROUP_HEADER_BAR_ID), null);
// Render header.
RenderingUtilities.renderComponent(header, context);
writer.endElement("tr"); //NOI18N
}
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Enclosing tag methods
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/**
* Render enclosing tag for TableRowGroup components.
*
* @param context FacesContext for the current request.
* @param component TableRowGroup to be rendered.
* @param writer ResponseWriter to which the component should be rendered.
* @param index The current row index.
*
* @exception IOException if an input/output error occurs.
*/
protected void renderEnclosingTagStart(FacesContext context,
TableRowGroup component, ResponseWriter writer, int index)
throws IOException {
if (component == null) {
log("renderEnclosingTagStart", //NOI18N
"Cannot render enclosing tag, TableRowGroup is null"); //NOI18N
return;
}
Theme theme = getTheme();
writer.writeText("\n", null); //NOI18N
writer.startElement("tr", component); //NOI18N
writer.writeAttribute("id", component.getClientId(context), null); //NOI18N
// Get style class for nonempty table.
String styleClasses[] = getRowStyleClasses(component);
String styleClass = (index > -1 && styleClasses.length > 0)
? styleClasses[index % styleClasses.length] : null;
// Get selected style class.
if (component.isSelected()) {
String s = theme.getStyleClass(ThemeStyles.TABLE_SELECT_ROW);
styleClass = (styleClass != null) ? styleClass + " " + s : s; //NOI18N
}
// Get collapsed style class.
if (component.isCollapsed()) {
String s = theme.getStyleClass(ThemeStyles.HIDDEN);
styleClass = (styleClass != null) ? styleClass + " " + s : s; //NOI18N
}
// Render style class.
RenderingUtilities.renderStyleClass(context, writer, component,
styleClass);
// Render tooltip.
if (component.getToolTip() != null) {
writer.writeAttribute("title", component.getToolTip(), "toolTip"); //NOI18N
}
// Render pass through attributes.
RenderingUtilities.writeStringAttributes(component, writer,
stringAttributes);
}
/**
* Render enclosing tag for TableRowGroup components.
*
* @param writer ResponseWriter to which the component should be rendered.
*
* @exception IOException if an input/output error occurs.
*/
protected void renderEnclosingTagEnd(ResponseWriter writer)
throws IOException {
writer.endElement("tr"); //NOI18N
}
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Private methods
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/**
* Helper method to get Map of List objects containing nested TableColumn
* children.
* * Note: Although not currently a requirement, nested TableColumn children * could render column footers that look like: *
*
* | | 1 | 2 | | 3 | 4 | 5 | 6 | |
* | A | B | C | D | E |
*
* * In this case, components would be rendered on separate rows. Thus, we * need a map that contains List objects like so: *
*
* Key (row) 0: A, 1, 2, C, 3, 4, 5, 6, E
* Key (row) 1: B, D
*
* * Obtaining the List for key 0 tells the renderer that A, 1, 2, C, 3, 4, 5, * 6, and E should be rendered for the first row. Obtaining the List for key * 1, tells the renderer that B and D should be rendered for the next row. * And so on... *
* @param component TableRowGroup to be rendered. * @return A Map of nested TableColumn children. */ private Map getColumnFooterMap(TableRowGroup component) { Map map = getColumnHeaderMap(component); // Start with header map. if (map.size() == 0) { log("getColumnFooterMap", "Cannot obtain column footer map"); //NOI18N return map; } // Invert map. HashMap newMap = new HashMap(); for (int i = 0; i < map.size(); i++) { newMap.put(new Integer(i), map.get(new Integer(map.size() - i - 1))); } // Move all non-nested components to the top row. List newList = (List) newMap.get(new Integer(0)); for (int c = 1; c < newMap.size(); c++) { // Top row is set already. List list = (List) newMap.get(new Integer(c)); for (int i = list.size() - 1; i >= 0; i--) { // Start with last component. TableColumn col = (TableColumn) list.get(i); if (col.getTableColumnChildren().hasNext()) { // Do not move TableColumn components with nested children. continue; } // Get colspan of all previous components. int colspan = 0; for (int k = i - 1; k >= 0; k--) { TableColumn prevCol = (TableColumn) list.get(k); if (prevCol.getTableColumnChildren().hasNext()) { // Count only nested TableColumn components. Other // components have not been moved to the to row, yet. colspan += prevCol.getColumnCount(); } } // Set new position in the top row. newList.add(colspan, col); list.remove(i); } } return newMap; } /** * Helper method to get Map of List objects containing nested TableColumn * children. ** Note: Nested TableColumn children may be rendered on separate rows. For * example, to render column footers that look like the following: *
*
* | A | B | C | D | E |
* | | 1 | 2 | | 3 | 4 | 5 | 6 | |
*
* * In this case, components would be rendered on separate rows. Thus, we * need a map that contains List objects like so: *
*
* Key (row) 0: A, B, C, D, E
* Key (row) 1: 1, 2, 3, 4, 5, 6
*
* * Obtaining the List for key 0 tells the renderer that A, B, C, D, and E * should be rendered for the first row. Obtaining the List for key 1, tells * the renderer that 1, 2, 3, 4, 5, and 6 should be rendered for the next * row. And so on... *
* @param component TableRowGroup to be rendered. * @return A Map of nested TableColumn children. */ private Map getColumnHeaderMap(TableRowGroup component) { HashMap map = new HashMap(); if (component == null) { log("getColumnHeaderMap", //NOI18N "Cannot obtain column header map, TableRowGroup is null"); //NOI18N return map; } Iterator kids = component.getTableColumnChildren(); while (kids.hasNext()) { TableColumn col = (TableColumn) kids.next(); initColumnHeaderMap(col, map, 0); } return map; } /** * Get component id. * * @param component The parent UIComponent component. * @param id The id of the the component to be rendered. */ private String getId(UIComponent component, String id) { String clientId = component.getClientId(FacesContext.getCurrentInstance()); return clientId + NamingContainer.SEPARATOR_CHAR + id; } /** Helper method to get Theme objects. */ private Theme getTheme() { return ThemeUtilities.getTheme(FacesContext.getCurrentInstance()); } /** * Helper method to get an array of stylesheet classes to be applied to each * row, in the order specified. ** Note: This is a comma-delimited list of CSS style classes that will be * applied to the rows of this table. A space separated list of classes may * also be specified for any individual row. These styles are applied, in * turn, to each row in the table. For example, if the list has two * elements, the first style class in the list is applied to the first row, * the second to the second row, the first to the third row, the second to * the fourth row, etc. In other words, we keep iterating through the list * until we reach the end, and then we start at the beginning again. *
* @param component TableRowGroup component being rendered. * @return An array of stylesheet classes. */ private String[] getRowStyleClasses(TableRowGroup component) { String values = (component != null) ? (String) component.getStyleClasses() : null; if (values == null) { return new String[0]; } values = values.trim(); ArrayList list = new ArrayList(); while (values.length() > 0) { int comma = values.indexOf(","); //NOI18N if (comma >= 0) { list.add(values.substring(0, comma).trim()); values = values.substring(comma + 1); } else { list.add(values.trim()); values = ""; //NOI18N } } String results[] = new String[list.size()]; return ((String[]) list.toArray(results)); } /** * Helper method to initialize Map of List objects containing nested * TableColumn children. * * @param component TableColumn to be rendered. * @param map Map to save component List. * @param level The current level of the component tree. */ private void initColumnHeaderMap(TableColumn component, Map map, int level) { if (component == null) { log("initColumnHeaderMap", //NOI18N "Cannot initialize column header map, TableColumn is null"); //NOI18N return; } // Get new List for nested TableColumn children. Iterator kids = component.getTableColumnChildren(); if (kids.hasNext()) { ArrayList newList = new ArrayList(); while (kids.hasNext()) { TableColumn col = (TableColumn) kids.next(); if (!col.isRendered()) { continue; } initColumnHeaderMap(col, map, level + 1); } } // Create a new List if needed. Integer key = new Integer(level); List list = (List) map.get(key); if (list == null) { list = new ArrayList(); } list.add(component); // Save component in List. map.put(key, list); // Save List in map. } /** * Log fine messages. */ private void log(String method, String message) { // Get class. Class clazz = this.getClass(); if (LogUtil.fineEnabled(clazz)) { // Log method name and message. LogUtil.fine(clazz, clazz.getName() + "." + method + ": " + message); //NOI18N } } }