Apache Struts API Documentation: Class CompareTagBase

Apache Struts API

previous page next page

Overview

Package

Class

Use

Tree

Deprecated

Index

Help

PREV CLASS NEXT CLASS

FRAMES NO FRAMES

SUMMARY: INNER | FIELD | CONSTR | METHOD

DETAIL: FIELD | CONSTR | METHOD

org.apache.struts.taglib.logic Class CompareTagBase

java.lang.Object
  |
  +--javax.servlet.jsp.tagext.TagSupport
        |
        +--org.apache.struts.taglib.logic.ConditionalTagBase
              |
              +--org.apache.struts.taglib.logic.CompareTagBase

All Implemented Interfaces:: java.io.Serializable, javax.servlet.jsp.tagext.Tag

Direct Known Subclasses:: EqualTag, GreaterEqualTag, GreaterThanTag, LessEqualTag, LessThanTag, NotEqualTag

public abstract class CompareTagBase
extends ConditionalTagBase

Abstract base class for comparison tags. Concrete subclasses need only define values for desired1 and desired2.

Version:: $Rev: 54929 $ $Date: 2004-10-16 17:38:42 +0100 (Sat, 16 Oct 2004) $
See Also:: Serialized Form

Field Summary
`protected static int`	`DOUBLE_COMPARE` We will do a double/float comparison.
`protected static int`	`LONG_COMPARE` We will do a long/int comparison.
`protected static MessageResources`	`messages` The message resources for this package.
`protected static int`	`STRING_COMPARE` We will do a String comparison.
`java.lang.String`	`value` The value to which the variable specified by other attributes of this tag will be compared.

Fields inherited from class org.apache.struts.taglib.logic.ConditionalTagBase

cookie, header, name, parameter, property, role, scope, user

Fields inherited from class javax.servlet.jsp.tagext.TagSupport

id, pageContext, parent, values

Fields inherited from interface javax.servlet.jsp.tagext.Tag

EVAL_BODY_INCLUDE, EVAL_PAGE, SKIP_BODY, SKIP_PAGE

Constructor Summary
`CompareTagBase()`

Method Summary
`protected abstract boolean`	`condition()` Evaluate the condition that is being tested by this particular tag, and return `true` if the nested body content of this tag should be evaluated, or `false` if it should be skipped.
`protected boolean`	`condition(int desired1, int desired2)` Evaluate the condition that is being tested by this particular tag, and return `true` if the nested body content of this tag should be evaluated, or `false` if it should be skipped.
`java.lang.String`	`getValue()`
`void`	`release()` Release all allocated resources.
`void`	`setValue(java.lang.String value)`

Methods inherited from class org.apache.struts.taglib.logic.ConditionalTagBase

doEndTag, doStartTag, getCookie, getHeader, getName, getParameter, getProperty, getRole, getScope, getUser, setCookie, setHeader, setName, setParameter, setProperty, setRole, setScope, setUser

Methods inherited from class javax.servlet.jsp.tagext.TagSupport

findAncestorWithClass, getId, getParent, getValue, getValues, removeValue, setId, setPageContext, setParent, setValue

Methods inherited from class java.lang.Object

, clone, equals, finalize, getClass, hashCode, notify, notifyAll, registerNatives, toString, wait, wait, wait

Field Detail

DOUBLE_COMPARE

protected static final int DOUBLE_COMPARE

We will do a double/float comparison.

LONG_COMPARE

protected static final int LONG_COMPARE

We will do a long/int comparison.

STRING_COMPARE

protected static final int STRING_COMPARE

We will do a String comparison.

messages

protected static MessageResources messages

The message resources for this package.

value

public java.lang.String value

The value to which the variable specified by other attributes of this tag will be compared.

Constructor Detail

CompareTagBase

public CompareTagBase()

Method Detail

getValue

public java.lang.String getValue()

setValue

public void setValue(java.lang.String value)

release

public void release()

Release all allocated resources.

Overrides:: release in class ConditionalTagBase

condition

protected abstract boolean condition()
                              throws javax.servlet.jsp.JspException

Evaluate the condition that is being tested by this particular tag, and return true if the nested body content of this tag should be evaluated, or false if it should be skipped. This method must be implemented by concrete subclasses.

Overrides:: condition in class ConditionalTagBase

Throws:: javax.servlet.jsp.JspException - if a JSP exception occurs