org.apache.struts.taglib.nested
public class NestedPropertyHelper extends Object
A simple helper class that does everything that needs to be done to get the nested tag extension to work. The tags will pass in their relative properties and this class will leverage the accessibility of the request object to calculate the nested references and manage them from a central place.
The helper method NestedPropertyHelper takes a reference to the tag itself so all the simpler tags can have their references managed from a central location. From here, the reference to a provided name is also preserved for use.
With all tags keeping track of themselves, we only have to seek to the next level, or parent tag, were a tag will append a dot and it's own property.
Since: Struts 1.1
Version: $Rev: 54929 $ $Date: 2004-10-16 17:38:42 +0100 (Sat, 16 Oct 2004) $
Field Summary | |
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static String | NESTED_INCLUDES_KEY |
Method Summary | |
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static String | calculateRelativeProperty(String property, String parent) |
static void | deleteReference(HttpServletRequest request)
Deletes the nested reference from the request object. |
static String | getAdjustedProperty(HttpServletRequest request, String property)
Get the adjusted property.
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static String | getCurrentName(HttpServletRequest request, NestedNameSupport nested) Returns the bean name from the request object that the properties are nesting against. The requirement of the tag itself could be removed in the future, but is
required if support for the |
static String | getCurrentProperty(HttpServletRequest request)
Returns the current nesting property from the request object. |
static NestedReference | referenceInstance(HttpServletRequest request)
Pulls the current nesting reference from the request object, and if there
isn't one there, then it will create one and set it. |
static void | setName(HttpServletRequest request, String name)
Sets the provided name into the request object for reference by the
other nested tags. |
static void | setNestedProperties(HttpServletRequest request, NestedPropertySupport tag)
Helper method that will set all the relevant nesting properties for the
provided tag reference depending on the implementation. |
static void | setProperty(HttpServletRequest request, String property)
Sets the provided property into the request object for reference by the
other nested tags. |
Parameters: request object to remove the reference from
Parameters: request to pull the reference from property to retrieve the evaluated nested property with
Returns: String of the final nested property reference.
Returns the bean name from the request object that the properties are nesting against.
The requirement of the tag itself could be removed in the future, but is
required if support for the
Parameters: request object to fetch the bean reference from nested tag from which to start the search from
Returns: the string of the bean name to be nesting against
Parameters: request object to fetch the property reference from
Returns: String of the bean name to nest against
Parameters: request object to manipulate the reference into
Returns: current nesting reference as stored in the request object
Parameters: request object to set the new name into name String to set the name to
Parameters: request object to pull references from tag to set the nesting values into
Parameters: request object to set the new property into property String to set the property to