org.apache.catalina.core
クラス ApplicationContext

java.lang.Object
  |
  +--org.apache.catalina.core.ApplicationContext
すべての実装インタフェース:
javax.servlet.ServletContext

public class ApplicationContext
extends java.lang.Object
implements javax.servlet.ServletContext

Standard implementation of ServletContext that represents a web application's execution environment. An instance of this class is associated with each instance of StandardContext.

バージョン:
$Revision: 1.32.2.3 $ $Date: 2002/06/05 16:47:31 $
作成者:
Craig R. McClanahan, Remy Maucherat

内部クラスの概要
protected  class ApplicationContext.PrivilegedGetRequestDispatcher
           
protected  class ApplicationContext.PrivilegedGetResource
           
protected  class ApplicationContext.PrivilegedGetResourcePaths
           
protected  class ApplicationContext.PrivilegedLogException
           
protected  class ApplicationContext.PrivilegedLogMessage
           
protected  class ApplicationContext.PrivilegedLogThrowable
           
 
コンストラクタの概要
ApplicationContext(java.lang.String basePath, StandardContext context)
          Construct a new instance of this class, associated with the specified Context instance.
 
メソッドの概要
 void clearAttributes()
          Clear all application-created attributes.
 java.lang.Object getAttribute(java.lang.String name)
          Return the value of the specified context attribute, if any; otherwise return null.
 java.util.Enumeration getAttributeNames()
          Return an enumeration of the names of the context attributes associated with this context.
 javax.servlet.ServletContext getContext(java.lang.String uri)
          Return a ServletContext object that corresponds to a specified URI on the server.
 java.lang.String getInitParameter(java.lang.String name)
          Return the value of the specified initialization parameter, or null if this parameter does not exist.
 java.util.Enumeration getInitParameterNames()
          Return the names of the context's initialization parameters, or an empty enumeration if the context has no initialization parameters.
static java.lang.String getJNDIUri(java.lang.String hostName, java.lang.String path)
          Get full path, based on the host name and the context path.
 int getMajorVersion()
          Return the major version of the Java Servlet API that we implement.
 java.lang.String getMimeType(java.lang.String file)
          Return the MIME type of the specified file, or null if the MIME type cannot be determined.
 int getMinorVersion()
          Return the minor version of the Java Servlet API that we implement.
 javax.servlet.RequestDispatcher getNamedDispatcher(java.lang.String name)
          Return a RequestDispatcher object that acts as a wrapper for the named servlet.
 java.lang.String getRealPath(java.lang.String path)
          Return the real path for a given virtual path, if possible; otherwise return null.
 javax.servlet.RequestDispatcher getRequestDispatcher(java.lang.String path)
          Return a RequestDispatcher instance that acts as a wrapper for the resource at the given path.
 java.net.URL getResource(java.lang.String path)
          Return the URL to the resource that is mapped to a specified path.
 java.io.InputStream getResourceAsStream(java.lang.String path)
          Return the requested resource as an InputStream.
 java.util.Set getResourcePaths(java.lang.String path)
          Return a Set containing the resource paths of resources member of the specified collection.
 javax.naming.directory.DirContext getResources()
          Return the resources object that is mapped to a specified path.
 java.lang.String getServerInfo()
          Return the name and version of the servlet container.
 javax.servlet.Servlet getServlet(java.lang.String name)
          推奨されていません。 As of Java Servlet API 2.1, with no direct replacement.
 java.lang.String getServletContextName()
          Return the display name of this web application.
 java.util.Enumeration getServletNames()
          推奨されていません。 As of Java Servlet API 2.1, with no direct replacement.
 java.util.Enumeration getServlets()
          推奨されていません。 As of Java Servlet API 2.1, with no direct replacement.
 void log(java.lang.Exception exception, java.lang.String message)
          推奨されていません。 As of Java Servlet API 2.1, use log(String, Throwable) instead
 void log(java.lang.String message)
          Writes the specified message to a servlet log file.
 void log(java.lang.String message, java.lang.Throwable throwable)
          Writes the specified message and exception to a servlet log file.
 void removeAttribute(java.lang.String name)
          Remove the context attribute with the specified name, if any.
 void setAttribute(java.lang.String name, java.lang.Object value)
          Bind the specified value with the specified context attribute name, replacing any existing value for that name.
 void setAttributeReadOnly(java.lang.String name)
          Set an attribute as read only.
 
クラス java.lang.Object から継承したメソッド
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

コンストラクタの詳細

ApplicationContext

public ApplicationContext(java.lang.String basePath,
                          StandardContext context)
Construct a new instance of this class, associated with the specified Context instance.
パラメータ:
context - The associated Context instance
メソッドの詳細

clearAttributes

public void clearAttributes()
Clear all application-created attributes.

getResources

public javax.naming.directory.DirContext getResources()
Return the resources object that is mapped to a specified path. The path must begin with a "/" and is interpreted as relative to the current context root.

setAttributeReadOnly

public void setAttributeReadOnly(java.lang.String name)
Set an attribute as read only.

getAttribute

public java.lang.Object getAttribute(java.lang.String name)
Return the value of the specified context attribute, if any; otherwise return null.
定義:
インタフェース javax.servlet.ServletContext 内の getAttribute
パラメータ:
name - Name of the context attribute to return

getAttributeNames

public java.util.Enumeration getAttributeNames()
Return an enumeration of the names of the context attributes associated with this context.
定義:
インタフェース javax.servlet.ServletContext 内の getAttributeNames

getContext

public javax.servlet.ServletContext getContext(java.lang.String uri)
Return a ServletContext object that corresponds to a specified URI on the server. This method allows servlets to gain access to the context for various parts of the server, and as needed obtain RequestDispatcher objects or resources from the context. The given path must be absolute (beginning with a "/"), and is interpreted based on our virtual host's document root.
定義:
インタフェース javax.servlet.ServletContext 内の getContext
パラメータ:
uri - Absolute URI of a resource on the server

getInitParameter

public java.lang.String getInitParameter(java.lang.String name)
Return the value of the specified initialization parameter, or null if this parameter does not exist.
定義:
インタフェース javax.servlet.ServletContext 内の getInitParameter
パラメータ:
name - Name of the initialization parameter to retrieve

getInitParameterNames

public java.util.Enumeration getInitParameterNames()
Return the names of the context's initialization parameters, or an empty enumeration if the context has no initialization parameters.
定義:
インタフェース javax.servlet.ServletContext 内の getInitParameterNames

getMajorVersion

public int getMajorVersion()
Return the major version of the Java Servlet API that we implement.
定義:
インタフェース javax.servlet.ServletContext 内の getMajorVersion

getMinorVersion

public int getMinorVersion()
Return the minor version of the Java Servlet API that we implement.
定義:
インタフェース javax.servlet.ServletContext 内の getMinorVersion

getMimeType

public java.lang.String getMimeType(java.lang.String file)
Return the MIME type of the specified file, or null if the MIME type cannot be determined.
定義:
インタフェース javax.servlet.ServletContext 内の getMimeType
パラメータ:
file - Filename for which to identify a MIME type

getNamedDispatcher

public javax.servlet.RequestDispatcher getNamedDispatcher(java.lang.String name)
Return a RequestDispatcher object that acts as a wrapper for the named servlet.
定義:
インタフェース javax.servlet.ServletContext 内の getNamedDispatcher
パラメータ:
name - Name of the servlet for which a dispatcher is requested

getRealPath

public java.lang.String getRealPath(java.lang.String path)
Return the real path for a given virtual path, if possible; otherwise return null.
定義:
インタフェース javax.servlet.ServletContext 内の getRealPath
パラメータ:
path - The path to the desired resource

getRequestDispatcher

public javax.servlet.RequestDispatcher getRequestDispatcher(java.lang.String path)
Return a RequestDispatcher instance that acts as a wrapper for the resource at the given path. The path must begin with a "/" and is interpreted as relative to the current context root.
定義:
インタフェース javax.servlet.ServletContext 内の getRequestDispatcher
パラメータ:
path - The path to the desired resource.

getResource

public java.net.URL getResource(java.lang.String path)
                         throws java.net.MalformedURLException
Return the URL to the resource that is mapped to a specified path. The path must begin with a "/" and is interpreted as relative to the current context root.
定義:
インタフェース javax.servlet.ServletContext 内の getResource
パラメータ:
path - The path to the desired resource
例外:
java.net.MalformedURLException - if the path is not given in the correct form

getResourceAsStream

public java.io.InputStream getResourceAsStream(java.lang.String path)
Return the requested resource as an InputStream. The path must be specified according to the rules described under getResource. If no such resource can be identified, return null.
定義:
インタフェース javax.servlet.ServletContext 内の getResourceAsStream
パラメータ:
path - The path to the desired resource.

getResourcePaths

public java.util.Set getResourcePaths(java.lang.String path)
Return a Set containing the resource paths of resources member of the specified collection. Each path will be a String starting with a "/" character. The returned set is immutable.
定義:
インタフェース javax.servlet.ServletContext 内の getResourcePaths
パラメータ:
path - Collection path

getServerInfo

public java.lang.String getServerInfo()
Return the name and version of the servlet container.
定義:
インタフェース javax.servlet.ServletContext 内の getServerInfo

getServlet

public javax.servlet.Servlet getServlet(java.lang.String name)
推奨されていません。 As of Java Servlet API 2.1, with no direct replacement.

定義:
インタフェース javax.servlet.ServletContext 内の getServlet

getServletContextName

public java.lang.String getServletContextName()
Return the display name of this web application.
定義:
インタフェース javax.servlet.ServletContext 内の getServletContextName

getServletNames

public java.util.Enumeration getServletNames()
推奨されていません。 As of Java Servlet API 2.1, with no direct replacement.

定義:
インタフェース javax.servlet.ServletContext 内の getServletNames

getServlets

public java.util.Enumeration getServlets()
推奨されていません。 As of Java Servlet API 2.1, with no direct replacement.

定義:
インタフェース javax.servlet.ServletContext 内の getServlets

log

public void log(java.lang.String message)
Writes the specified message to a servlet log file.
定義:
インタフェース javax.servlet.ServletContext 内の log
パラメータ:
message - Message to be written

log

public void log(java.lang.Exception exception,
                java.lang.String message)
推奨されていません。 As of Java Servlet API 2.1, use log(String, Throwable) instead

Writes the specified exception and message to a servlet log file.
定義:
インタフェース javax.servlet.ServletContext 内の log
パラメータ:
exception - Exception to be reported
message - Message to be written

log

public void log(java.lang.String message,
                java.lang.Throwable throwable)
Writes the specified message and exception to a servlet log file.
定義:
インタフェース javax.servlet.ServletContext 内の log
パラメータ:
message - Message to be written
throwable - Exception to be reported

removeAttribute

public void removeAttribute(java.lang.String name)
Remove the context attribute with the specified name, if any.
定義:
インタフェース javax.servlet.ServletContext 内の removeAttribute
パラメータ:
name - Name of the context attribute to be removed

setAttribute

public void setAttribute(java.lang.String name,
                         java.lang.Object value)
Bind the specified value with the specified context attribute name, replacing any existing value for that name.
定義:
インタフェース javax.servlet.ServletContext 内の setAttribute
パラメータ:
name - Attribute name to be bound
value - New attribute value to be bound

getJNDIUri

public static java.lang.String getJNDIUri(java.lang.String hostName,
                                          java.lang.String path)
Get full path, based on the host name and the context path.


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