public  void addStaticAttribute(String name,
    Object value) 
{
		this.staticAttributes.put(name, value);
}

Add static data to this view, exposed in each view.

"Static" attributes are fixed attributes that are specified in the View instance configuration. "Dynamic" attributes, on the other hand, are values passed in as part of the model.

Must be invoked before any calls to render.

 protected RequestContext createRequestContext(HttpServletRequest request,
    Map model) 
{
		return new RequestContext(request, getServletContext(), model);
}

Create a RequestContext to expose under the specified attribute name.

Default implementation creates a standard RequestContext instance for the given request and model. Can be overridden in subclasses for custom instances.

 protected  void exposeModelAsRequestAttributes(Map model,
    HttpServletRequest request) throws Exception 
{
		Iterator it = model.entrySet().iterator();
		while (it.hasNext()) {
			Map.Entry entry = (Map.Entry) it.next();
			if (!(entry.getKey() instanceof String)) {
				throw new IllegalArgumentException(
						"Invalid key [" + entry.getKey() + "] in model Map: only Strings allowed as model keys");
			}
			String modelName = (String) entry.getKey();
			Object modelValue = entry.getValue();
			if (modelValue != null) {
				request.setAttribute(modelName, modelValue);
				if (logger.isDebugEnabled()) {
					logger.debug("Added model object '" + modelName + "' of type [" + modelValue.getClass().getName() +
							"] to request in view with name '" + getBeanName() + "'");
				}
			}
			else {
				request.removeAttribute(modelName);
				if (logger.isDebugEnabled()) {
					logger.debug("Removed model object '" + modelName +
							"' from request in view with name '" + getBeanName() + "'");
				}
			}
		}
}

Expose the model objects in the given map as request attributes. Names will be taken from the model Map. This method is suitable for all resources reachable by javax.servlet.RequestDispatcher .

 protected boolean generatesDownloadContent() 
{
		return false;
}

Return whether this view generates download content (typically binary content like PDF or Excel files).

The default implementation returns false. Subclasses are encouraged to return true here if they know that they are generating download content that requires temporary caching on the client side, typically via the response OutputStream.

 public Map getAttributesMap() 
{
		return this.staticAttributes;
}

Allow Map access to the static attributes of this view, with the option to add or override specific entries.

Useful for specifying entries directly, for example via "attributesMap[myKey]". This is particularly useful for adding or overriding entries in child view definitions.

 public String getBeanName() 
{
		return this.beanName;
}

Return the view's name. Should never be null, if the view was correctly configured.

 public String getContentType() 
{
		return this.contentType;
}

Return the content type for this view.

 public String getRequestContextAttribute() 
{
		return this.requestContextAttribute;
}

Return the name of the RequestContext attribute, if any.

 public Map getStaticAttributes() 
{
		return Collections.unmodifiableMap(this.staticAttributes);
}

Return the static attributes for this view. Handy for testing.

Returns an unmodifiable Map, as this is not intended for manipulating the Map but rather just for checking the contents.

 protected  void prepareResponse(HttpServletRequest request,
    HttpServletResponse response) 
{
		if (generatesDownloadContent()) {
			response.setHeader("Pragma", "private");
			response.setHeader("Cache-Control", "private, must-revalidate");
		}
}

Prepare the given response for rendering.

The default implementation applies a workaround for an IE bug when sending download content via HTTPS.

 public  void render(Map model,
    HttpServletRequest request,
    HttpServletResponse response) throws Exception 
{
		if (logger.isDebugEnabled()) {
			logger.debug("Rendering view with name '" + this.beanName + "' with model " + model +
				" and static attributes " + this.staticAttributes);
		}
		// Consolidate static and dynamic model attributes.
		Map mergedModel = new HashMap(this.staticAttributes.size() + (model != null ? model.size() : 0));
		mergedModel.putAll(this.staticAttributes);
		if (model != null) {
			mergedModel.putAll(model);
		}
		// Expose RequestContext?
		if (this.requestContextAttribute != null) {
			mergedModel.put(this.requestContextAttribute, createRequestContext(request, mergedModel));
		}
		prepareResponse(request, response);
		renderMergedOutputModel(mergedModel, request, response);
}

Prepares the view given the specified model, merging it with static attributes and a RequestContext attribute, if necessary. Delegates to renderMergedOutputModel for the actual rendering.

 abstract protected  void renderMergedOutputModel(Map model,
    HttpServletRequest request,
    HttpServletResponse response) throws Exception
Subclasses must implement this method to actually render the view.
The first step will be preparing the request: In the JSP case,
this would mean setting model objects as request attributes.
The second step will be the actual rendering of the view,
for example including the JSP via a RequestDispatcher.

 public  void setAttributes(Properties attributes) 
{
		CollectionUtils.mergePropertiesIntoMap(attributes, this.staticAttributes);
}

Set static attributes for this view from a java.util.Properties object.

"Static" attributes are fixed attributes that are specified in the View instance configuration. "Dynamic" attributes, on the other hand, are values passed in as part of the model.

This is the most convenient way to set static attributes. Note that static attributes can be overridden by dynamic attributes, if a value with the same name is included in the model.

Can be populated with a String "value" (parsed via PropertiesEditor) or a "props" element in XML bean definitions.

 public  void setAttributesCSV(String propString) throws IllegalArgumentException 
{
		if (propString != null) {
			StringTokenizer st = new StringTokenizer(propString, ",");
			while (st.hasMoreTokens()) {
				String tok = st.nextToken();
				int eqIdx = tok.indexOf("=");
				if (eqIdx == -1) {
					throw new IllegalArgumentException("Expected = in attributes CSV string '" + propString + "'");
				}
				if (eqIdx  >= tok.length() - 2) {
					throw new IllegalArgumentException(
							"At least 2 characters ([]) required in attributes CSV string '" + propString + "'");
				}
				String name = tok.substring(0, eqIdx);
				String value = tok.substring(eqIdx + 1);
				// Delete first and last characters of value: { and }
				value = value.substring(1);
				value = value.substring(0, value.length() - 1);
				addStaticAttribute(name, value);
			}
		}
}

Set static attributes as a CSV string. Format is: attname0={value1},attname1={value1}

"Static" attributes are fixed attributes that are specified in the View instance configuration. "Dynamic" attributes, on the other hand, are values passed in as part of the model.

 public  void setAttributesMap(Map attributes) 
{
		if (attributes != null) {
			Iterator it = attributes.entrySet().iterator();
			while (it.hasNext()) {
				Map.Entry entry = (Map.Entry) it.next();
				Object key = entry.getKey();
				if (!(key instanceof String)) {
					throw new IllegalArgumentException(
							"Invalid attribute key [" + key + "]: only Strings allowed");
				}
				addStaticAttribute((String) key, entry.getValue());
			}
		}
}

Set static attributes for this view from a Map. This allows to set any kind of attribute values, for example bean references.

"Static" attributes are fixed attributes that are specified in the View instance configuration. "Dynamic" attributes, on the other hand, are values passed in as part of the model.

Can be populated with a "map" or "props" element in XML bean definitions.

 public  void setBeanName(String beanName) 
{
	               	 
		this.beanName = beanName;
}

Set the view's name. Helpful for traceability.

Framework code must call this when constructing views.

 public  void setContentType(String contentType) 
{
		this.contentType = contentType;
}

Set the content type for this view. Default is "text/html;charset=ISO-8859-1".

May be ignored by subclasses if the view itself is assumed to set the content type, e.g. in case of JSPs.

 public  void setRequestContextAttribute(String requestContextAttribute) 
{
		this.requestContextAttribute = requestContextAttribute;
}

Set the name of the RequestContext attribute for this view. Default is none.

 public String toString() 
{
		StringBuffer sb = new StringBuffer(getClass().getName());
		if (getBeanName() != null) {
			sb.append(": name '").append(getBeanName()).append("'");
		}
		else {
			sb.append(": unnamed");
		}
		return sb.toString();
}