org.apache.taglibs.string
Class DefaultTag
java.lang.Object
javax.servlet.jsp.tagext.TagSupport
javax.servlet.jsp.tagext.BodyTagSupport
org.apache.taglibs.string.StringTagSupport
org.apache.taglibs.string.DefaultTag
- All Implemented Interfaces:
- javax.servlet.jsp.tagext.BodyTag, javax.servlet.jsp.tagext.IterationTag, java.io.Serializable, javax.servlet.jsp.tagext.Tag
- public class DefaultTag
- extends StringTagSupport
If the body String is a particular value, then output
a default value, else output the body String.
The major use of this is to convert 'null' into an
empty String.
- value
-
Value to be equal to.
Default is the string: "null".
- default
-
Value to place if body is equal to value field.
Default is an empty String.
- Author:
- bayard@generationjava.com
- See Also:
- Serialized Form
Fields inherited from class javax.servlet.jsp.tagext.BodyTagSupport |
bodyContent |
Fields inherited from class javax.servlet.jsp.tagext.TagSupport |
id, pageContext |
Fields inherited from interface javax.servlet.jsp.tagext.BodyTag |
EVAL_BODY_BUFFERED, EVAL_BODY_TAG |
Fields inherited from interface javax.servlet.jsp.tagext.IterationTag |
EVAL_BODY_AGAIN |
Fields inherited from interface javax.servlet.jsp.tagext.Tag |
EVAL_BODY_INCLUDE, EVAL_PAGE, SKIP_BODY, SKIP_PAGE |
Method Summary |
java.lang.String |
changeString(java.lang.String text)
Perform a transformation on the passed in String. |
java.lang.String |
getDefault()
Get the default property |
java.lang.String |
getValue()
Get the value property |
void |
initAttributes()
Initialise any properties to default values. |
void |
setDefault(java.lang.String defaultValue)
Set the default property |
void |
setValue(java.lang.String value)
Set the value property |
Methods inherited from class javax.servlet.jsp.tagext.BodyTagSupport |
doAfterBody, doInitBody, doStartTag, getBodyContent, getPreviousOut, release, setBodyContent |
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, toString, wait, wait, wait |
Methods inherited from interface javax.servlet.jsp.tagext.Tag |
getParent, setPageContext, setParent |
DefaultTag
public DefaultTag()
getValue
public java.lang.String getValue()
- Get the value property
- Returns:
- String property
setValue
public void setValue(java.lang.String value)
- Set the value property
- Parameters:
value
- String property
getDefault
public java.lang.String getDefault()
- Get the default property
- Returns:
- String property
setDefault
public void setDefault(java.lang.String defaultValue)
- Set the default property
changeString
public java.lang.String changeString(java.lang.String text)
throws javax.servlet.jsp.JspException
- Description copied from class:
StringTagSupport
- Perform a transformation on the passed in String.
- Specified by:
changeString
in class StringTagSupport
- Parameters:
text
- String to be manipulated
- Returns:
- String result of operation upon passed in String
- Throws:
javax.servlet.jsp.JspException
initAttributes
public void initAttributes()
- Description copied from class:
StringTagSupport
- Initialise any properties to default values.
This method is called upon construction, and
after changeString(String) is called.
This is a default empty implementation.
- Overrides:
initAttributes
in class StringTagSupport
Copyright ? 2000-2004 The Apache Software Foundation. All Rights Reserved.