Find Usages Diff Raw Download HTML Widget
Start line:  
End line:  

Snippet Preview

Snippet HTML Code

Stack Overflow Questions 
1
  /*
2
   * Licensed to the Apache Software Foundation (ASF) under one
3
   * or more contributor license agreements.  See the NOTICE file
4
   * distributed with this work for additional information
5
   * regarding copyright ownership.  The ASF licenses this file
6
   * to you under the Apache License, Version 2.0 (the
7
   * "License"); you may not use this file except in compliance
8
   * with the License.  You may obtain a copy of the License at
9
   *
10
  *   http://www.apache.org/licenses/LICENSE-2.0
11
  *
12
  * Unless required by applicable law or agreed to in writing,
13
  * software distributed under the License is distributed on an
14
  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15
  * KIND, either express or implied.  See the License for the
16
  * specific language governing permissions and limitations
17
  * under the License.
18
  */
19
 package org.apache.sling.api;

The SlingConstants interface provides some symbolic constants for well known constant strings in Sling. Even though these constants will never change, it is recommended that applications refer to the symbolic constants instead of code the strings themselves. 
26
 
27
 public class SlingConstants {

    
The namespace prefix used throughout Sling (value is "sling").

The actual use depends on the environment. For example a org.apache.sling.api.resource.ResourceResolver using a JCR repository may name Sling node types and items using namespaces mapped to this prefix. A JSP tag library for Sling may use this prefix as the namespace prefix for its tags. 

37
 
38
     public static final String NAMESPACE_PREFIX = "sling";

    
The namespace URI prefix to be used by Sling projects to define namespaces (value is "http://sling.apache.org/").

The actual namespace URI depends on the environment. For example a org.apache.sling.api.resource.ResourceResolver using a JCR repository may define its namespace as NAMESPACE_URI_ROOT + "jcr/sling/1.0". A JSP tag library for Sling may define its namespace as NAMESPACE_URI_ROOT + "taglib/sling/1.0". 

50
 
51
     public static final String NAMESPACE_URI_ROOT = "http://sling.apache.org/";

    
The name of the request attribute containing the Servlet which included the servlet currently being active (value is "org.apache.sling.api.include.servlet"). This attribute is null if the current servlet is the servlet handling the client request.

The type of the attribute value is javax.servlet.Servlet. 

61
 
62
     public static final String ATTR_REQUEST_SERVLET = "org.apache.sling.api.include.servlet";

    
The name of the request attribute containing the Resource underlying the Servlet which included the servlet currently being active (value is "org.apache.sling.api.include.resource"). This attribute is null if the current servlet is the servlet handling the client request.

The type of the attribute value is org.apache.sling.api.resource.Resource. 

74
 
75
     public static final String ATTR_REQUEST_CONTENT = "org.apache.sling.api.include.resource";
76
 
77
     // ---------- Error handling -----------------------------------------------
78
 
    
The name of the request attribute containing the exception thrown causing the error handler to be called (value is "javax.servlet.error.exception"). This attribute is only available to error handling servlets and only if an exception has been thrown causing error handling.

The type of the attribute value is java.lang.Throwable. 

87
 
88
     public static final String ERROR_EXCEPTION = "javax.servlet.error.exception";

    
The name of the request attribute containing the fully qualified class name of the exception thrown causing the error handler to be called (value is "javax.servlet.error.exception_type"). This attribute is only available to error handling servlets and only if an exception has been thrown causing error handling. This attribute is present for backwards compatibility only. Error handling servlet implementors are advised to use the Throwable itself.

The type of the attribute value is java.lang.String. 

101
    public static final String ERROR_EXCEPTION_TYPE = "javax.servlet.error.exception_type";

    
The name of the request attribute containing the message of the error situation (value is "javax.servlet.error.message"). If an exception caused error handling, this is the exceptions message from Throwable.getMessage(). If error handling is caused by a call to one of the SlingHttpServletResponse.sendError methods, this attribute contains the optional message.

The type of the attribute value is java.lang.String. 

113
    public static final String ERROR_MESSAGE = "javax.servlet.error.message";

    
The name of the request attribute containing the URL requested by the client during whose processing the error handling was caused (value is "javax.servlet.error.request_uri"). This property is retrieved calling the SlingHttpServletRequest.getRequestURI() method.

The type of the attribute value is java.lang.String. 

123
    public static final String ERROR_REQUEST_URI = "javax.servlet.error.request_uri";

    
The name of the request attribute containing the name of the servlet which caused the error handling (value is "javax.servlet.error.servlet_name").

The type of the attribute value is java.lang.String. 

132
    public static final String ERROR_SERVLET_NAME = "javax.servlet.error.servlet_name";

    
The name of the request attribute containing the status code sent to the client (value is "javax.servlet.error.status_code"). Error handling servlets may set this status code on their response to the client or they may choose to set another status code. For example a handler for NOT_FOUND status (404) may opt to redirect to a new location and thus not set the 404 status but a MOVED_PERMANENTLY (301) status. If this attribute is not set and the error handler is not configured to set its own status code anyway, a default value of INTERNAL_SERVER_ERROR (500) should be sent.

The type of the attribute value is java.lang.Integer. 

147
    public static final String ERROR_STATUS = "javax.servlet.error.status_code";
New to GrepCode? Check out our FAQ X