File	Doc	Category	Size	Date	Package
TagAttributeInfo.java	API Doc	Glassfish v2 API	12039	Fri May 04 22:34:28 BST 2007	javax.servlet.jsp.tagext

TagAttributeInfo

• java.lang.Object

Fields Summary
public static final String	ID "id" is wired in to be ID. There is no real benefit in having it be something else IDREFs are not handled any differently.
private String	name
private String	type
private boolean	reqTime
private boolean	required
private boolean	fragment
private boolean	deferredValue
private boolean	deferredMethod
private String	expectedTypeName
private String	methodSignature
private String	description

Constructors Summary
public TagAttributeInfo(String name, boolean required, String type, boolean reqTime) Constructor for TagAttributeInfo. This class is to be instantiated only from the TagLibrary code under request from some JSP code that is parsing a TLD (Tag Library Descriptor). param name The name of the attribute. param required If this attribute is required in tag instances. param type The name of the type of the attribute. param reqTime Whether this attribute holds a request-time Attribute. this.name = name; this.required = required; this.type = type; this.reqTime = reqTime;
public TagAttributeInfo(String name, boolean required, String type, boolean reqTime, boolean fragment) JSP 2.0 Constructor for TagAttributeInfo. This class is to be instantiated only from the TagLibrary code under request from some JSP code that is parsing a TLD (Tag Library Descriptor). param name The name of the attribute. param required If this attribute is required in tag instances. param type The name of the type of the attribute. param reqTime Whether this attribute holds a request-time Attribute. param fragment Whether this attribute is of type JspFragment since JSP 2.0 this( name, required, type, reqTime ); this.fragment = fragment;
public TagAttributeInfo(String name, boolean required, String type, boolean reqTime, boolean fragment, String description, boolean deferredValue, boolean deferredMethod, String expectedTypeName, String methodSignature) JSP 2.1 Constructor for TagAttributeInfo. This class is to be instantiated only from the TagLibrary code under request from some JSP code that is parsing a TLD (Tag Library Descriptor). param name The name of the attribute. param required If this attribute is required in tag instances. param type The name of the type of the attribute. param reqTime Whether this attribute holds a request-time Attribute. param fragment Whether this attribute is of type JspFragment param description The description of the attribute. param deferredValue Whether this attribute is a deferred value. param deferredMethod Whether this attribute is a deferred method. rtexpr or deferred value. param expectedTypeName The name of the expected type of this deferred value (or null if this is not a deferred value). param methodSignature The expected method signature of this deferred method (or null if this is not a deferred method). since JSP 2.1 this( name, required, type, reqTime, fragment ); this.description = description; this.deferredValue = deferredValue; this.deferredMethod = deferredMethod; this.expectedTypeName = expectedTypeName; this.methodSignature = methodSignature;

Methods Summary
public boolean	canBeRequestTime() Whether this attribute has been specified in the TLD as rtexprvalue. If true, this means the attribute can hold a request-time value. return true if the attribute has been specified in the TLD as rtexprvalue return reqTime;
public java.lang.String	getDescription() Gets the description string of this tag attribute. return the description string of this tag attribute return description;
public java.lang.String	getExpectedTypeName() Returns the name of the expected type (as a String) of this deferred value attribute. This method returns null if isDeferredValue() returns false. return the name of the expected type since JSP 2.1 return expectedTypeName;
public static javax.servlet.jsp.tagext.TagAttributeInfo	getIdAttribute(javax.servlet.jsp.tagext.TagAttributeInfo[] a) Convenience static method that goes through an array of TagAttributeInfo objects and looks for "id". param a An array of TagAttributeInfo return The TagAttributeInfo reference with name "id" for (int i=0; i<a.length; i++) { if (a[i].getName().equals(ID)) { return a[i]; } } return null; // no such attribute
public java.lang.String	getMethodSignature() Returns the expected method signature of this deferred method attribute. This method returns null if isDeferredMethod() returns false. return the method signature since JSP 2.1 return methodSignature;
public java.lang.String	getName() The name of this attribute. return the name of the attribute return name;
public java.lang.String	getTypeName() The type (as a String) of this attribute. This method must return "javax.el.ValueExpression" if isDeferredValue() returns true and canBeRequestTime() returns false. It must return "javax.el.MethodExpression" if isDeferredMethod() returns true. It must return "java.lang.Object" if isDeferredValue() returns true and canBeRequestTime() returns true. return the type of the attribute return type;
public boolean	isDeferredMethod() Returns true if this attribute is to be passed a MethodExpression so that expression evaluation can be deferred. If this method returns true, then getTypeName() must return "javax.el.MethodExpression". The getMethodSignature() method can be used to retrieve the expected method signature this method expression will be constructed with. return true if this attribute accepts a deferred method; false otherwise. since JSP 2.1 return deferredMethod;
public boolean	isDeferredValue() Returns true if this attribute is to be passed a ValueExpression so that expression evaluation can be deferred. If this method returns true, then getTypeName() must return "javax.el.ValueExpression". The getExpectedType() method can be used to retrieve the expected type this value expression will be constructed with. return true if this attribute accepts a deferred value; false otherwise. since JSP 2.1 return deferredValue;
public boolean	isFragment() Whether this attribute is of type JspFragment. return if the attribute is of type JspFragment since JSP 2.0 return fragment;
public boolean	isRequired() Whether this attribute is required. return if the attribute is required. return required;
public java.lang.String	toString() Returns a String representation of this TagAttributeInfo, suitable for debugging purposes. return a String representation of this TagAttributeInfo StringBuffer b = new StringBuffer(); b.append("name = "+name+" "); b.append("type = "+type+" "); b.append("reqTime = "+reqTime+" "); b.append("required = "+required+" "); b.append("fragment = "+fragment+" "); b.append("deferredValue = "+deferredValue+" "); b.append("deferredMethod = "+deferredMethod+" "); b.append("expectedTypeName = "+expectedTypeName+" "); b.append("methodSignature = "+methodSignature+" "); return b.toString();