public class SubsetIteratorTag extends StrutsBodyTagSupport
A tag that takes an iterator and outputs a subset of it. It delegates to
SubsetIteratorFilter internally to
perform the subset functionality.
public class MySubsetTagAction extends ActionSupport {
public String execute() throws Exception {
l = new ArrayList();
l.add(new Integer(1));
l.add(new Integer(2));
l.add(new Integer(3));
l.add(new Integer(4));
l.add(new Integer(5));
return "done";
}
public Integer[] getMyArray() {
return a;
}
public List getMyList() {
return l;
}
public Decider getMyDecider() {
return new Decider() {
public boolean decide(Object element) throws Exception {
int i = ((Integer)element).intValue();
return (((i % 2) == 0)?true:false);
}
};
}
}
<!-- s: List basic -->
<s:subset source="myList">
<s:iterator>
<s:property />
</s:iterator>
</s:subset>
<!-- B: List with count -->
<s:subset source="myList" count="3">
<s:iterator>
<s:property />
</s:iterator>
</s:subset>
<!-- C: List with start -->
<s:subset source="myList" count="13" start="3">
<s:iterator>
<s:property />
</s:iterator>
</s:subset>
<!-- D: List with var -->
<s:subset var="mySubset" source="myList" count="13" start="3" />
<%
Iterator i = (Iterator) pageContext.getAttribute("mySubset");
while(i.hasNext()) {
%>
<%=i.next() %>
<% } %>
<!-- D: List with Decider -->
<s:subset source="myList" decider="myDecider">
<s:iterator>
<s:property />
</s:iterator>
</s:subset>
| Constructor and Description |
|---|
SubsetIteratorTag() |
| Modifier and Type | Method and Description |
|---|---|
int |
doEndTag() |
int |
doStartTag() |
void |
setCount(String count) |
void |
setDecider(String decider) |
void |
setId(String string) |
void |
setSource(String source) |
void |
setStart(String start) |
void |
setVar(String var) |
findString, findValue, findValue, getBody, getStack, toStringdoAfterBody, doInitBody, getBodyContent, getPreviousOut, release, setBodyContentfindAncestorWithClass, getId, getParent, getValue, getValues, removeValue, setPageContext, setParent, setValuepublic void setCount(String count)
public void setSource(String source)
public void setStart(String start)
public void setDecider(String decider)
public void setId(String string)
setId in class javax.servlet.jsp.tagext.TagSupportpublic void setVar(String var)
public int doStartTag()
throws javax.servlet.jsp.JspException
doStartTag in interface javax.servlet.jsp.tagext.TagdoStartTag in class javax.servlet.jsp.tagext.BodyTagSupportjavax.servlet.jsp.JspExceptionpublic int doEndTag()
throws javax.servlet.jsp.JspException
doEndTag in interface javax.servlet.jsp.tagext.TagdoEndTag in class javax.servlet.jsp.tagext.BodyTagSupportjavax.servlet.jsp.JspExceptionCopyright © 2000-2013 Apache Software Foundation. All Rights Reserved.