Apache Struts API Documentation: Class ParameterTag

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## org.apache.struts.taglib.bean
Class ParameterTag

    java.lang.Object
      |
      +--javax.servlet.jsp.tagext.TagSupport
            |
            +--org.apache.struts.taglib.bean.ParameterTag

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

public class ParameterTag
extends javax.servlet.jsp.tagext.TagSupport

Define a scripting variable based on the value(s) of the specified parameter received with this request.

Version:
  $Revision: 1.1 $ $Date: 2001-09-17 21:13:30 +0100 (Mon, 17 Sep 2001) $
Author:
  Craig R. McClanahan
See Also:
  Serialized Form

Field Summary
`protected java.lang.String` | `id` The name of the scripting variable that will be exposed as a page scope attribute.
`protected static MessageResources` | `messages` The message resources for this package.
`protected java.lang.String` | `multiple` Return an array of parameter values if `multiple` is non-null.
`protected java.lang.String` | `name` The name of the parameter whose value is to be exposed.
`protected java.lang.String` | `value` The default value to return if no parameter of the specified name is found.

Fields inherited from class javax.servlet.jsp.tagext.TagSupport
`pageContext, parent, values`

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`

Constructor Summary
`ParameterTag()`

Method Summary
`int` | `doStartTag()` Retrieve the required property and expose it as a scripting variable.
`java.lang.String` | `getId()`
`java.lang.String` | `getMultiple()`
`java.lang.String` | `getName()`
`java.lang.String` | `getValue()`
`void` | `release()` Release all allocated resources.
`void` | `setId(java.lang.String id)`
`void` | `setMultiple(java.lang.String multiple)`
`void` | `setName(java.lang.String name)`
`void` | `setValue(java.lang.String value)`

Methods inherited from class javax.servlet.jsp.tagext.TagSupport
`doAfterBody, doEndTag, findAncestorWithClass, getParent, getValue, getValues, removeValue, setPageContext, setParent, setValue`

Methods inherited from class java.lang.Object
`, clone, equals, finalize, getClass, hashCode, notify, notifyAll, registerNatives, toString, wait, wait, wait`

Field Detail

### id

    protected java.lang.String id

  The name of the scripting variable that will be exposed as a page scope attribute.

### messages

    protected static MessageResources messages

  The message resources for this package.

### multiple

    protected java.lang.String multiple

  Return an array of parameter values if `multiple` is non-null.

### name

    protected java.lang.String name

  The name of the parameter whose value is to be exposed.

### value

    protected java.lang.String value

  The default value to return if no parameter of the specified name is found.

Constructor Detail

### ParameterTag

    public ParameterTag()

Method Detail

### getId

    public java.lang.String getId()

  Overrides:
    `getId` in class `javax.servlet.jsp.tagext.TagSupport`

### setId

    public void setId(java.lang.String id)

  Overrides:
    `setId` in class `javax.servlet.jsp.tagext.TagSupport`

### getMultiple

    public java.lang.String getMultiple()

### setMultiple

    public void setMultiple(java.lang.String multiple)

### getName

    public java.lang.String getName()

### setName

    public void setName(java.lang.String name)

### getValue

    public java.lang.String getValue()

### setValue

    public void setValue(java.lang.String value)

### doStartTag

    public int doStartTag()
                   throws javax.servlet.jsp.JspException

  Retrieve the required property and expose it as a scripting variable.
  Overrides:
    `doStartTag` in class `javax.servlet.jsp.tagext.TagSupport`
  Throws:
    `javax.servlet.jsp.JspException` - if a JSP exception has occurred

### release

    public void release()

  Release all allocated resources.
  Overrides:
    `release` in class `javax.servlet.jsp.tagext.TagSupport`

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