oracle.cabo.share.data
Class RequestParameters

java.lang.Object
  |
  +--oracle.cabo.share.data.RequestParameters

Direct Known Subclasses:

ServletRequestParameters

public abstract class RequestParameters

extends java.lang.Object

Class wrapping up access to parameters. This allows the values and contents of these parameters to be modified from their values in the underlying parameter scheme. Clients using Servlets will use the ServletRequestParameters implementation of this class to wrap access to the ServletRequests's parameters.

Constructor Summary

RequestParameters()

Method Summary

java.lang.String	getParameter(java.lang.String name) Returns the value of a request parameter as a String, or null if the parameter does not exist.
abstract java.util.Enumeration	getParameterNames() Returns an Enumeration of String objects containing the names of the parameters contained in this request.
abstract java.lang.String[]	getParameterValues(java.lang.String name) Returns an array of String objects containing all of the values the given request parameter has, or null if the parameter does not exist.

Methods inherited from class java.lang.Object

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

Constructor Detail

RequestParameters

public RequestParameters()

Method Detail

getParameter

public java.lang.String getParameter(java.lang.String name)

Returns the value of a request parameter as a String, or null if the parameter does not exist. Request parameters are extra information sent with the request. For HTTP servlets, parameters are contained in the query string or posted form data.

You should only use this method when you are sure the parameter has only one value. If the parameter might have more than one value, use getParameterValues(java.lang.String).

If you use this method with a multivalued parameter, the value returned is equal to the first value in the array returned by getParameterValues.

Parameters:

name - a String specifying the name of the parameter

Returns:

a String representing the single value of the parameter

See Also:

getParameterValues(java.lang.String)

getParameterNames

public abstract java.util.Enumeration getParameterNames()

Returns an Enumeration of String objects containing the names of the parameters contained in this request. If the request has no parameters, the method returns an empty Enumeration.

Returns:

an Enumeration of String objects, each String containing the name of a request parameter; or an empty Enumeration if the request has no parameters

getParameterValues

public abstract java.lang.String[] getParameterValues(java.lang.String name)

Returns an array of String objects containing all of the values the given request parameter has, or null if the parameter does not exist.

If the parameter has a single value, the array has a length of 1.

Parameters:

name - a String containing the name of the parameter whose value is requested

Returns:

an array of String objects containing the parameter's values

See Also:

getParameter(java.lang.String)