File	Doc	Category	Size	Date	Package
TagPluginContext.java	API Doc	Apache Tomcat 6.0.14	4580	Fri Jul 20 04:20:34 BST 2007	org.apache.jasper.compiler.tagplugin

TagPluginContext

Fields Summary

Constructors Summary

Methods Summary
public void	dontUseTagPlugin() Abandon optimization for this tag handler, and instruct Jasper to generate the tag handler calls, as usual. Should be invoked if errors are detected, or when the tag body is deemed too compilicated for optimization.
public void	generateAttribute(java.lang.String attribute) Generate codesto evaluate value of a attribute in the custom tag The codes is a Java expression. NOTE: Currently cannot handle attributes that are fragments. param attribute The specified attribute
public void	generateBody() Generate codes for the body of the custom tag
public void	generateDeclaration(java.lang.String id, java.lang.String text) Generate a declaration in the of the generated class. This can be used to declare an innter class, a method, or a class variable. param id An unique ID identifying the declaration. It is not part of the declaration, and is used to ensure that the declaration will only appear once. If this method is invoked with the same id more than once in the translation unit, only the first declaration will be taken. param text The text of the declaration.
public void	generateImport(java.lang.String s) Generate an import statement param s Name of the import class, '*' allowed.
public void	generateJavaSource(java.lang.String s) Generate Java source codes
public java.lang.String	getConstantAttribute(java.lang.String attribute) return A string that is the value of a constant attribute. Undefined if the attribute is not a (translation-time) constant. null if the attribute is not specified.
public org.apache.jasper.compiler.tagplugin.TagPluginContext	getParentContext() Get the PluginContext for the parent of this custom tag. NOTE: The operations available for PluginContext so obtained is limited to getPluginAttribute and setPluginAttribute, and queries (e.g. isScriptless(). There should be no calls to generate*(). return The pluginContext for the parent node. null if the parent is not a custom tag, or if the pluginConxt if not available (because useTagPlugin is false, e.g).
public java.lang.Object	getPluginAttribute(java.lang.String attr) Get the value of an attribute in the current tagplugin context.
public java.lang.String	getTemporaryVariableName() return An unique temporary variable name that the plugin can use.
public boolean	isAttributeSpecified(java.lang.String attribute) param attribute Name of the attribute return true if the attribute is specified in the tag
public boolean	isConstantAttribute(java.lang.String attribute) return true if the attribute is specified and its value is a translation-time constant.
public boolean	isScriptless() return true if the body of the tag is scriptless.
public void	setPluginAttribute(java.lang.String attr, java.lang.Object value) Associate the attribute with a value in the current tagplugin context. The plugin attributes can be used for communication among tags that must work together as a group. See for an example.