Java Doc for CallPageFlow.java in  » Library » Apache-beehive-1.0.2-src » org » apache » beehive » netui » tags » databinding » invoke » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Library » Apache beehive 1.0.2 src » org.apache.beehive.netui.tags.databinding.invoke 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


org.apache.beehive.netui.tags.databinding.invoke.AbstractCallMethod
   org.apache.beehive.netui.tags.databinding.invoke.CallMethod
      org.apache.beehive.netui.tags.databinding.invoke.CallPageFlow

CallPageFlow
public class CallPageFlow extends CallMethod (Code)

Calls methods on the current Page Flow. If no Controller file is found, an ObjectNotFoundException is thrown and the tag execution fails. Any return value is stored in the ${pageScope...} data binding context object under the attribute specified by the resultId attribute.

For example, given a hello method and the following <netui-data:callPageFlow> tag:

 <netui-data:callPageFlow method="hello" resultId="helloMessage"/>
 

the result of the call is stored in the ${pageScope} JSP EL implicit object under the attribute helloMessage. It will be accessible via ${pageScope.helloMessage} and can be used as:

 <netui:span value="${pageScope.helloMessage}"/>
 

In JSP scriptlet, the result can be retrieved by calling the getAttribute() method on the javax.servlet.jsp.PageContext javax.servlet.jsp.PageContext object:

 <%= pageContext.getAttribute("helloMessage") %>
 

ObjectNotFoundExceptionjavax.servlet.jsp.PageContext javax.servlet.jsp.PageContextorg.apache.beehive.netui.tags.html.Span




Method Summary
protected  StringgetObjectName()
     Get the name of the object that is the target of the invocation.
public  StringgetTagName()
     Get the name of this tag.
protected  ObjectresolveObject()
     Get the PageFlow for the using JSP's directory.



Method Detail
getObjectName
protected String getObjectName()(Code)
Get the name of the object that is the target of the invocation. a name for the object on which the method will be invoked.



getTagName
public String getTagName()(Code)
Get the name of this tag. This is used to identify the type of this tag for reporting tag errors. a constant String representing the name of this tag.



resolveObject
protected Object resolveObject() throws ObjectNotFoundException(Code)
Get the PageFlow for the using JSP's directory. This is an implementation of the CallMethod.resolveObject method that finds the current PageFlow using the PageFlowUtils.getCurrentPageFlow method. the current PageFlow. If there is no current PageFlow, the ObjectNotFoundException willbe thrown.
throws:
  ObjectNotFoundException - when an exception occurs ensuring that a Page Flow is created.



Methods inherited from org.apache.beehive.netui.tags.databinding.invoke.CallMethod
final protected Method findMethod(Object target, String methodName, boolean verifyTypes)(Code)(Java Doc)
protected String getObjectName()(Code)(Java Doc)
public String getTagName()(Code)(Java Doc)
protected void localRelease()(Code)(Java Doc)
protected Object resolveObject() throws ObjectNotFoundException, JspException(Code)(Java Doc)
public void setObject(Object object)(Code)(Java Doc)

Methods inherited from org.apache.beehive.netui.tags.databinding.invoke.AbstractCallMethod
public void addParameter(String type, Object parameter)(Code)(Java Doc)
protected boolean allowNullInvocationTarget()(Code)(Java Doc)
public int doEndTag() throws JspException(Code)(Java Doc)
public int doStartTag() throws JspException(Code)(Java Doc)
abstract protected Method findMethod(Object target, String methodName, boolean verifyTypes)(Code)(Java Doc)
abstract protected String getObjectName()(Code)(Java Doc)
protected List getParameterNodes()(Code)(Java Doc)
protected void handleReturnValue(Object result)(Code)(Java Doc)
protected void localRelease()(Code)(Java Doc)
abstract protected Object resolveObject() throws ObjectNotFoundException, JspException(Code)(Java Doc)
public void setFailOnError(boolean failOnError)(Code)(Java Doc)
public void setMethod(String method)(Code)(Java Doc)
public void setResultId(String resultId)(Code)(Java Doc)

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