com.day.cq.commons.servlets

Class AbstractPredicateServlet

java.lang.Object

javax.servlet.GenericServlet

org.apache.sling.api.servlets.SlingSafeMethodsServlet

org.apache.sling.api.servlets.SlingAllMethodsServlet

com.day.cq.commons.servlets.AbstractPredicateServlet

All Implemented Interfaces:

java.io.Serializable, javax.servlet.Servlet, javax.servlet.ServletConfig

Direct Known Subclasses:

AbstractCommandServlet, AbstractListServlet, AbstractSearchServlet, ContentFinderListInfoProviderHelper, OverlayServlet

public abstract class AbstractPredicateServlet
extends SlingAllMethodsServlet

Abstract servlet that retrieves the predicates from the request.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	FILTER_PARAM default name for the filter parameter
static java.lang.String	PATH_PARAM default path parameter name
static java.lang.String	PREDICATE_PARAM default name for the predicate parameter

Constructor Summary

Constructors

Constructor and Description
AbstractPredicateServlet()

Method Summary

Modifier and Type	Method and Description
Predicate	getPredicate(SlingHttpServletRequest request) Returns the predicate retrieved from the given request.

Methods inherited from class org.apache.sling.api.servlets.SlingSafeMethodsServlet

getServletInfo, service

Methods inherited from class javax.servlet.GenericServlet

destroy, getInitParameter, getInitParameterNames, getServletConfig, getServletContext, getServletName, init, init, log, log

Methods inherited from class java.lang.Object

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

Field Detail

PATH_PARAM

public static final java.lang.String PATH_PARAM

default path parameter name

See Also:

Constant Field Values

PREDICATE_PARAM

public static final java.lang.String PREDICATE_PARAM

default name for the predicate parameter

See Also:

Constant Field Values

FILTER_PARAM

public static final java.lang.String FILTER_PARAM

default name for the filter parameter

See Also:

Constant Field Values

Constructor Detail

AbstractPredicateServlet

public AbstractPredicateServlet()

Method Detail

getPredicate

public Predicate getPredicate(SlingHttpServletRequest request)

Returns the predicate retrieved from the given request. the predicates are retrieved from the request selectors and the request parameter values of the "predicate". those predicates form an AnyPredicate. If no predicates are specified in the request a TruePredicate is returned.

Note: the "filter" parameters are used to add ResourceFilter predicates. although this is discouraged because java class names should never be passed over the wire.

Parameters:

request - servlet request

Returns:

predicate