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java.lang.Objectjavax.servlet.jsp.tagext.TagSupport
com.gisgraphy.webapp.taglib.ConstantsTag
public class ConstantsTag
This class is designed to put all the public variables in a class to a specified scope - designed for exposing a Constants class to Tag Libraries.
It is designed to be used as follows:
<tag:constants />
Optional values are "className" (fully qualified) and "scope".
Field Summary | |
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protected String |
scope
The scope to be put the variable in. |
protected String |
var
The single variable to expose. |
Fields inherited from class javax.servlet.jsp.tagext.TagSupport |
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id, pageContext |
Fields inherited from interface javax.servlet.jsp.tagext.IterationTag |
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EVAL_BODY_AGAIN |
Fields inherited from interface javax.servlet.jsp.tagext.Tag |
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EVAL_BODY_INCLUDE, EVAL_PAGE, SKIP_BODY, SKIP_PAGE |
Constructor Summary | |
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ConstantsTag()
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Method Summary | |
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int |
doStartTag()
Main method that does processing and exposes Constants in specified scope |
String |
getClassName()
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String |
getScope()
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int |
getScope(String scopeName)
Converts the scope name into its corresponding PageContext constant value. |
String |
getVar()
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void |
release()
Release all allocated resources. |
void |
setClassName(String clazz)
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void |
setScope(String scope)
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void |
setVar(String var)
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Methods inherited from class javax.servlet.jsp.tagext.TagSupport |
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doAfterBody, doEndTag, findAncestorWithClass, getId, getParent, getValue, getValues, removeValue, setId, setPageContext, setParent, setValue |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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protected String scope
protected String var
Constructor Detail |
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public ConstantsTag()
Method Detail |
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public int doStartTag() throws javax.servlet.jsp.JspException
doStartTag
in interface javax.servlet.jsp.tagext.Tag
doStartTag
in class javax.servlet.jsp.tagext.TagSupport
javax.servlet.jsp.JspException
- if processing failspublic void setClassName(String clazz)
public String getClassName()
public void setScope(String scope)
public String getScope()
public void setVar(String var)
public String getVar()
public void release()
release
in interface javax.servlet.jsp.tagext.Tag
release
in class javax.servlet.jsp.tagext.TagSupport
public int getScope(String scopeName) throws javax.servlet.jsp.JspException
scopeName
- Can be "page", "request", "session", or "application" in
any case.
javax.servlet.jsp.JspException
- if the scopeName is not a valid name.
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