The javax.servlet.jsp.tagext Package - Developing Java Servlets - page 509

The EVAL_BODY Field
public static final int EVAL_BODY

This field is used to hold the reference to the return value for doStartTag() and
doAfterBody() .

The EVAL_PAGE Field
public static final int EVAL_PAGE

This field is used to hold the reference to the return value for doEndTag() .

The libraryPrefix Field
private java.lang.String libraryPrefix

This field is used to hold the prefix for the tag library of this tag.

The pageContext Field
protected PageContext pageContext

This field is used to hold the reference to the current PageContext .

The parent Field
private Tag parent

This field is a reference to the parent tag kept by each Tag instance, which effectively provides
a runtime execution stack.

The previousOut Field
private JspWriter previousOut

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This field is a reference to the JspWriter and is valid when the tag is reached.

The SKIP_BODY Field
public static final int SKIP_BODY

This field indicates whether the body of the action should be evaluated.

The SKIP_PAGE Field
public static final int SKIP_PAGE

This field indicates whether the action should continue to evaluate the rest of the page.

The tagData Field
protected TagData tagData

This field contains the value information for a tag instance.