Context (Catalina Internal API Documentation)

org.apache.catalina
Interface Context

All Superinterfaces:

Container

All Known Implementing Classes:

StandardContext

public interface Context

extends Container

A Context is a Container that represents a servlet context, and therefore an individual web applicaiton, in the Catalina servlet engine. It is therefore useful in almost every deploymentof Catalina (even if a Connector attached to a web server (such as Apache) uses the web server's facilities to identify the appropriate Wrapper to handle this request. It also provides a convenient mechanism to use Interceptors that see every request processed by this particular web application.

The parent Container attached to a Context is generally a Host, but may be some other implementation, or may be omitted if it is not necessary.

The child containers attached to a Context are generally implementations of Wrapper (representing individual servlet definitions).

Version:

$Revision: 1.17.2.1 $ $Date: 2001/10/12 23:49:01 $

Author:

Craig R. McClanahan

Field Summary

Fields inherited from interface org.apache.catalina.Container

ADD_CHILD_EVENT, ADD_MAPPER_EVENT, ADD_VALVE_EVENT, REMOVE_CHILD_EVENT, REMOVE_MAPPER_EVENT, REMOVE_VALVE_EVENT

Method Summary

void	addApplicationListener(java.lang.String listener) Add a new Listener class name to the set of Listeners configured for this application.
void	addApplicationParameter(ApplicationParameter parameter) Add a new application parameter for this application.
void	addConstraint(SecurityConstraint constraint) Add a security constraint to the set for this web application.
void	addEjb(ContextEjb ejb) Add an EJB resource reference for this web application.
void	addEnvironment(ContextEnvironment environment) Add an environment entry for this web application.
void	addErrorPage(ErrorPage errorPage) Add an error page for the specified error or Java exception.
void	addFilterDef(FilterDef filterDef) Add a filter definition to this Context.
void	addFilterMap(FilterMap filterMap) Add a filter mapping to this Context.
void	addInstanceListener(java.lang.String listener) Add the classname of an InstanceListener to be added to each Wrapper appended to this Context.
void	addLocalEjb(ContextLocalEjb ejb) Add a local EJB resource reference for this web application.
void	addMimeMapping(java.lang.String extension, java.lang.String mimeType) Add a new MIME mapping, replacing any existing mapping for the specified extension.
void	addParameter(java.lang.String name, java.lang.String value) Add a new context initialization parameter, replacing any existing value for the specified name.
void	addResource(ContextResource resource) Add a resource reference for this web application.
void	addResourceEnvRef(java.lang.String name, java.lang.String type) Add a resource environment reference for this web application.
void	addRoleMapping(java.lang.String role, java.lang.String link) Add a security role reference for this web application.
void	addSecurityRole(java.lang.String role) Add a new security role for this web application.
void	addServletMapping(java.lang.String pattern, java.lang.String name) Add a new servlet mapping, replacing any existing mapping for the specified pattern.
void	addTaglib(java.lang.String uri, java.lang.String location) Add a JSP tag library for the specified URI.
void	addWelcomeFile(java.lang.String name) Add a new welcome file to the set recognized by this Context.
void	addWrapperLifecycle(java.lang.String listener) Add the classname of a LifecycleListener to be added to each Wrapper appended to this Context.
void	addWrapperListener(java.lang.String listener) Add the classname of a ContainerListener to be added to each Wrapper appended to this Context.
Wrapper	createWrapper() Factory method to create and return a new Wrapper instance, of the Java implementation class appropriate for this Context implementation.
java.lang.String[]	findApplicationListeners() Return the set of application listener class names configured for this application.
ApplicationParameter[]	findApplicationParameters() Return the set of application parameters for this application.
SecurityConstraint[]	findConstraints() Return the set of security constraints for this web application.
ContextEjb	findEjb(java.lang.String name) Return the EJB resource reference with the specified name, if any; otherwise, return null.
ContextEjb[]	findEjbs() Return the defined EJB resource references for this application.
ContextEnvironment	findEnvironment(java.lang.String name) Return the environment entry with the specified name, if any; otherwise, return null.
ContextEnvironment[]	findEnvironments() Return the set of defined environment entries for this web application.
ErrorPage	findErrorPage(int errorCode) Return the error page entry for the specified HTTP error code, if any; otherwise return null.
ErrorPage	findErrorPage(java.lang.String exceptionType) Return the error page entry for the specified Java exception type, if any; otherwise return null.
ErrorPage[]	findErrorPages() Return the set of defined error pages for all specified error codes and exception types.
FilterDef	findFilterDef(java.lang.String filterName) Return the filter definition for the specified filter name, if any; otherwise return null.
FilterDef[]	findFilterDefs() Return the set of defined filters for this Context.
FilterMap[]	findFilterMaps() Return the set of filter mappings for this Context.
java.lang.String[]	findInstanceListeners() Return the set of InstanceListener classes that will be added to newly created Wrappers automatically.
ContextLocalEjb	findLocalEjb(java.lang.String name) Return the local EJB resource reference with the specified name, if any; otherwise, return null.
ContextLocalEjb[]	findLocalEjbs() Return the defined local EJB resource references for this application.
java.lang.String	findMimeMapping(java.lang.String extension) Return the MIME type to which the specified extension is mapped, if any; otherwise return null.
java.lang.String[]	findMimeMappings() Return the extensions for which MIME mappings are defined.
java.lang.String	findParameter(java.lang.String name) Return the value for the specified context initialization parameter name, if any; otherwise return null.
java.lang.String[]	findParameters() Return the names of all defined context initialization parameters for this Context.
ContextResource	findResource(java.lang.String name) Return the resource reference with the specified name, if any; otherwise return null.
java.lang.String	findResourceEnvRef(java.lang.String name) Return the resource environment reference type for the specified name, if any; otherwise return null.
java.lang.String[]	findResourceEnvRefs() Return the set of resource environment reference names for this web application.
ContextResource[]	findResources() Return the defined resource references for this application.
java.lang.String	findRoleMapping(java.lang.String role) For the given security role (as used by an application), return the corresponding role name (as defined by the underlying Realm) if there is one.
boolean	findSecurityRole(java.lang.String role) Return true if the specified security role is defined for this application; otherwise return false.
java.lang.String[]	findSecurityRoles() Return the security roles defined for this application.
java.lang.String	findServletMapping(java.lang.String pattern) Return the servlet name mapped by the specified pattern (if any); otherwise return null.
java.lang.String[]	findServletMappings() Return the patterns of all defined servlet mappings for this Context.
java.lang.String	findStatusPage(int status) Return the context-relative URI of the error page for the specified HTTP status code, if any; otherwise return null.
int[]	findStatusPages() Return the set of HTTP status codes for which error pages have been specified.
java.lang.String	findTaglib(java.lang.String uri) Return the tag library descriptor location for the specified taglib URI, if any; otherwise, return null.
java.lang.String[]	findTaglibs() Return the URIs of all tag libraries for which a tag library descriptor location has been specified.
boolean	findWelcomeFile(java.lang.String name) Return true if the specified welcome file is defined for this Context; otherwise return false.
java.lang.String[]	findWelcomeFiles() Return the set of welcome files defined for this Context.
java.lang.String[]	findWrapperLifecycles() Return the set of LifecycleListener classes that will be added to newly created Wrappers automatically.
java.lang.String[]	findWrapperListeners() Return the set of ContainerListener classes that will be added to newly created Wrappers automatically.
java.lang.Object[]	getApplicationListeners() Return the set of initialized application listener objects, in the order they were specified in the web application deployment descriptor, for this application.
boolean	getAvailable() Return the application available flag for this Context.
CharsetMapper	getCharsetMapper() Return the Locale to character set mapper for this Context.
boolean	getConfigured() Return the "correctly configured" flag for this Context.
boolean	getCookies() Return the "use cookies for session ids" flag.
boolean	getCrossContext() Return the "allow crossing servlet contexts" flag.
java.lang.String	getDisplayName() Return the display name of this web application.
boolean	getDistributable() Return the distributable flag for this web application.
java.lang.String	getDocBase() Return the document root for this Context.
LoginConfig	getLoginConfig() Return the login configuration descriptor for this web application.
boolean	getOverride() Return the override flag for this web application.
java.lang.String	getPath() Return the context path for this web application.
boolean	getPrivileged() Return the privileged flag for this web application.
java.lang.String	getPublicId() Return the public identifier of the deployment descriptor DTD that is currently being parsed.
boolean	getReloadable() Return the reloadable flag for this web application.
javax.servlet.ServletContext	getServletContext() Return the servlet context for which this Context is a facade.
int	getSessionTimeout() Return the default session timeout (in minutes) for this web application.
java.lang.String	getWrapperClass() Return the Java class name of the Wrapper implementation used for servlets registered in this Context.
void	reload() Reload this web application, if reloading is supported.
void	removeApplicationListener(java.lang.String listener) Remove the specified application listener class from the set of listeners for this application.
void	removeApplicationParameter(java.lang.String name) Remove the application parameter with the specified name from the set for this application.
void	removeConstraint(SecurityConstraint constraint) Remove the specified security constraint from this web application.
void	removeEjb(java.lang.String name) Remove any EJB resource reference with the specified name.
void	removeEnvironment(java.lang.String name) Remove any environment entry with the specified name.
void	removeErrorPage(ErrorPage errorPage) Remove the error page for the specified error code or Java language exception, if it exists; otherwise, no action is taken.
void	removeFilterDef(FilterDef filterDef) Remove the specified filter definition from this Context, if it exists; otherwise, no action is taken.
void	removeFilterMap(FilterMap filterMap) Remove a filter mapping from this Context.
void	removeInstanceListener(java.lang.String listener) Remove a class name from the set of InstanceListener classes that will be added to newly created Wrappers.
void	removeLocalEjb(java.lang.String name) Remove any local EJB resource reference with the specified name.
void	removeMimeMapping(java.lang.String extension) Remove the MIME mapping for the specified extension, if it exists; otherwise, no action is taken.
void	removeParameter(java.lang.String name) Remove the context initialization parameter with the specified name, if it exists; otherwise, no action is taken.
void	removeResource(java.lang.String name) Remove any resource reference with the specified name.
void	removeResourceEnvRef(java.lang.String name) Remove any resource environment reference with the specified name.
void	removeRoleMapping(java.lang.String role) Remove any security role reference for the specified name
void	removeSecurityRole(java.lang.String role) Remove any security role with the specified name.
void	removeServletMapping(java.lang.String pattern) Remove any servlet mapping for the specified pattern, if it exists; otherwise, no action is taken.
void	removeTaglib(java.lang.String uri) Remove the tag library location forthe specified tag library URI.
void	removeWelcomeFile(java.lang.String name) Remove the specified welcome file name from the list recognized by this Context.
void	removeWrapperLifecycle(java.lang.String listener) Remove a class name from the set of LifecycleListener classes that will be added to newly created Wrappers.
void	removeWrapperListener(java.lang.String listener) Remove a class name from the set of ContainerListener classes that will be added to newly created Wrappers.
void	setApplicationListeners(java.lang.Object[] listeners) Store the set of initialized application listener objects, in the order they were specified in the web application deployment descriptor, for this application.
void	setAvailable(boolean available) Set the application available flag for this Context.
void	setCharsetMapper(CharsetMapper mapper) Set the Locale to character set mapper for this Context.
void	setConfigured(boolean configured) Set the "correctly configured" flag for this Context.
void	setCookies(boolean cookies) Set the "use cookies for session ids" flag.
void	setCrossContext(boolean crossContext) Set the "allow crossing servlet contexts" flag.
void	setDisplayName(java.lang.String displayName) Set the display name of this web application.
void	setDistributable(boolean distributable) Set the distributable flag for this web application.
void	setDocBase(java.lang.String docBase) Set the document root for this Context.
void	setLoginConfig(LoginConfig config) Set the login configuration descriptor for this web application.
void	setOverride(boolean override) Set the override flag for this web application.
void	setPath(java.lang.String path) Set the context path for this web application.
void	setPrivileged(boolean privileged) Set the privileged flag for this web application.
void	setPublicId(java.lang.String publicId) Set the public identifier of the deployment descriptor DTD that is currently being parsed.
void	setReloadable(boolean reloadable) Set the reloadable flag for this web application.
void	setSessionTimeout(int timeout) Set the default session timeout (in minutes) for this web application.
void	setWrapperClass(java.lang.String wrapperClass) Set the Java class name of the Wrapper implementation used for servlets registered in this Context.

Methods inherited from interface org.apache.catalina.Container

addChild, addContainerListener, addMapper, addPropertyChangeListener, findChild, findChildren, findMapper, findMappers, getCluster, getInfo, getLoader, getLogger, getManager, getName, getParent, getParentClassLoader, getRealm, getResources, invoke, map, removeChild, removeContainerListener, removeMapper, removePropertyChangeListener, setCluster, setLoader, setLogger, setManager, setName, setParent, setParentClassLoader, setRealm, setResources

Method Detail

getApplicationListeners

public java.lang.Object[] getApplicationListeners()

Return the set of initialized application listener objects, in the order they were specified in the web application deployment descriptor, for this application.

Throws:

java.lang.IllegalStateException - if this method is called before this application has started, or after it has been stopped

setApplicationListeners

public void setApplicationListeners(java.lang.Object[] listeners)

Store the set of initialized application listener objects, in the order they were specified in the web application deployment descriptor, for this application.

Parameters:

listeners - The set of instantiated listener objects.

getAvailable

public boolean getAvailable()

Return the application available flag for this Context.

setAvailable

public void setAvailable(boolean available)

Set the application available flag for this Context.

Parameters:

available - The new application available flag

getCharsetMapper

public CharsetMapper getCharsetMapper()

Return the Locale to character set mapper for this Context.

setCharsetMapper

public void setCharsetMapper(CharsetMapper mapper)

Set the Locale to character set mapper for this Context.

Parameters:

mapper - The new mapper

getConfigured

public boolean getConfigured()

Return the "correctly configured" flag for this Context.

setConfigured

public void setConfigured(boolean configured)

Set the "correctly configured" flag for this Context. This can be set to false by startup listeners that detect a fatal configuration error to avoid the application from being made available.

Parameters:

configured - The new correctly configured flag

getCookies

public boolean getCookies()

Return the "use cookies for session ids" flag.

setCookies

public void setCookies(boolean cookies)

Set the "use cookies for session ids" flag.

Parameters:

cookies - The new flag

getCrossContext

public boolean getCrossContext()

Return the "allow crossing servlet contexts" flag.

setCrossContext

public void setCrossContext(boolean crossContext)

Set the "allow crossing servlet contexts" flag.

Parameters:

crossContext - The new cross contexts flag

getDisplayName

public java.lang.String getDisplayName()

Return the display name of this web application.

setDisplayName

public void setDisplayName(java.lang.String displayName)

Set the display name of this web application.

Parameters:

displayName - The new display name

getDistributable

public boolean getDistributable()

Return the distributable flag for this web application.

setDistributable

public void setDistributable(boolean distributable)

Set the distributable flag for this web application.

Parameters:

distributable - The new distributable flag

getDocBase

public java.lang.String getDocBase()

Return the document root for this Context. This can be an absolute pathname, a relative pathname, or a URL.

setDocBase

public void setDocBase(java.lang.String docBase)

Set the document root for this Context. This can be an absolute pathname, a relative pathname, or a URL.

Parameters:

docBase - The new document root

getLoginConfig

public LoginConfig getLoginConfig()

Return the login configuration descriptor for this web application.

setLoginConfig

public void setLoginConfig(LoginConfig config)

Set the login configuration descriptor for this web application.

Parameters:

config - The new login configuration

getPath

public java.lang.String getPath()

Return the context path for this web application.

setPath

public void setPath(java.lang.String path)

Set the context path for this web application.

Parameters:

path - The new context path

getPublicId

public java.lang.String getPublicId()

Return the public identifier of the deployment descriptor DTD that is currently being parsed.

setPublicId

public void setPublicId(java.lang.String publicId)

Set the public identifier of the deployment descriptor DTD that is currently being parsed.

Parameters:

publicId - The public identifier

getReloadable

public boolean getReloadable()

Return the reloadable flag for this web application.

setReloadable

public void setReloadable(boolean reloadable)

Set the reloadable flag for this web application.

Parameters:

reloadable - The new reloadable flag

getOverride

public boolean getOverride()

Return the override flag for this web application.

setOverride

public void setOverride(boolean override)

Set the override flag for this web application.

Parameters:

override - The new override flag

getPrivileged

public boolean getPrivileged()

Return the privileged flag for this web application.

setPrivileged

public void setPrivileged(boolean privileged)

Set the privileged flag for this web application.

Parameters:

privileged - The new privileged flag

getServletContext

public javax.servlet.ServletContext getServletContext()

Return the servlet context for which this Context is a facade.

getSessionTimeout

public int getSessionTimeout()

Return the default session timeout (in minutes) for this web application.

setSessionTimeout

public void setSessionTimeout(int timeout)

Set the default session timeout (in minutes) for this web application.

Parameters:

timeout - The new default session timeout

getWrapperClass

public java.lang.String getWrapperClass()

Return the Java class name of the Wrapper implementation used for servlets registered in this Context.

setWrapperClass

public void setWrapperClass(java.lang.String wrapperClass)

Set the Java class name of the Wrapper implementation used for servlets registered in this Context.

Parameters:

wrapperClass - The new wrapper class

addApplicationListener

public void addApplicationListener(java.lang.String listener)

Add a new Listener class name to the set of Listeners configured for this application.

Parameters:

listener - Java class name of a listener class

addApplicationParameter

public void addApplicationParameter(ApplicationParameter parameter)

Add a new application parameter for this application.

Parameters:

parameter - The new application parameter

addConstraint

public void addConstraint(SecurityConstraint constraint)

Add a security constraint to the set for this web application.

addEjb

public void addEjb(ContextEjb ejb)

Add an EJB resource reference for this web application.

Parameters:

ejb - New EJB resource reference

addEnvironment

public void addEnvironment(ContextEnvironment environment)

Add an environment entry for this web application.

Parameters:

environment - New environment entry

addErrorPage

public void addErrorPage(ErrorPage errorPage)

Add an error page for the specified error or Java exception.

Parameters:

errorPage - The error page definition to be added

addFilterDef

public void addFilterDef(FilterDef filterDef)

Add a filter definition to this Context.

Parameters:

filterDef - The filter definition to be added

addFilterMap

public void addFilterMap(FilterMap filterMap)

Add a filter mapping to this Context.

Parameters:

filterMap - The filter mapping to be added

addInstanceListener

public void addInstanceListener(java.lang.String listener)

Add the classname of an InstanceListener to be added to each Wrapper appended to this Context.

Parameters:

listener - Java class name of an InstanceListener class

addLocalEjb

public void addLocalEjb(ContextLocalEjb ejb)

Add a local EJB resource reference for this web application.

Parameters:

ejb - New local EJB resource reference

addMimeMapping

public void addMimeMapping(java.lang.String extension,
                           java.lang.String mimeType)

Add a new MIME mapping, replacing any existing mapping for the specified extension.

Parameters:

extension - Filename extension being mapped

mimeType - Corresponding MIME type

addParameter

public void addParameter(java.lang.String name,
                         java.lang.String value)

Add a new context initialization parameter, replacing any existing value for the specified name.

Parameters:

name - Name of the new parameter

value - Value of the new parameter

addResource

public void addResource(ContextResource resource)

Add a resource reference for this web application.

Parameters:

resource - New resource reference

addResourceEnvRef

public void addResourceEnvRef(java.lang.String name,
                              java.lang.String type)

Add a resource environment reference for this web application.

Parameters:

name - The resource environment reference name

type - The resource environment reference type

addRoleMapping

public void addRoleMapping(java.lang.String role,
                           java.lang.String link)

Add a security role reference for this web application.

Parameters:

role - Security role used in the application

link - Actual security role to check for

addSecurityRole

public void addSecurityRole(java.lang.String role)

Add a new security role for this web application.

Parameters:

role - New security role

addServletMapping

public void addServletMapping(java.lang.String pattern,
                              java.lang.String name)

Add a new servlet mapping, replacing any existing mapping for the specified pattern.

Parameters:

pattern - URL pattern to be mapped

name - Name of the corresponding servlet to execute

addTaglib

public void addTaglib(java.lang.String uri,
                      java.lang.String location)

Add a JSP tag library for the specified URI.

Parameters:

uri - URI, relative to the web.xml file, of this tag library

location - Location of the tag library descriptor

addWelcomeFile

public void addWelcomeFile(java.lang.String name)

Add a new welcome file to the set recognized by this Context.

Parameters:

name - New welcome file name

addWrapperLifecycle

public void addWrapperLifecycle(java.lang.String listener)

Add the classname of a LifecycleListener to be added to each Wrapper appended to this Context.

Parameters:

listener - Java class name of a LifecycleListener class

addWrapperListener

public void addWrapperListener(java.lang.String listener)

Add the classname of a ContainerListener to be added to each Wrapper appended to this Context.

Parameters:

listener - Java class name of a ContainerListener class

createWrapper

public Wrapper createWrapper()

Factory method to create and return a new Wrapper instance, of the Java implementation class appropriate for this Context implementation. The constructor of the instantiated Wrapper will have been called, but no properties will have been set.

findApplicationListeners

public java.lang.String[] findApplicationListeners()

Return the set of application listener class names configured for this application.

findApplicationParameters

public ApplicationParameter[] findApplicationParameters()

Return the set of application parameters for this application.

findConstraints

public SecurityConstraint[] findConstraints()

Return the set of security constraints for this web application. If there are none, a zero-length array is returned.

findEjb

public ContextEjb findEjb(java.lang.String name)

Return the EJB resource reference with the specified name, if any; otherwise, return null.

Parameters:

name - Name of the desired EJB resource reference

findEjbs

public ContextEjb[] findEjbs()

Return the defined EJB resource references for this application. If there are none, a zero-length array is returned.

findEnvironment

public ContextEnvironment findEnvironment(java.lang.String name)

Return the environment entry with the specified name, if any; otherwise, return null.

Parameters:

name - Name of the desired environment entry

findEnvironments

public ContextEnvironment[] findEnvironments()

Return the set of defined environment entries for this web application. If none have been defined, a zero-length array is returned.

findErrorPage

public ErrorPage findErrorPage(int errorCode)

Return the error page entry for the specified HTTP error code, if any; otherwise return null.

Parameters:

errorCode - Error code to look up

findErrorPage

public ErrorPage findErrorPage(java.lang.String exceptionType)

Return the error page entry for the specified Java exception type, if any; otherwise return null.

Parameters:

exceptionType - Exception type to look up

findErrorPages

public ErrorPage[] findErrorPages()

Return the set of defined error pages for all specified error codes and exception types.

findFilterDef

public FilterDef findFilterDef(java.lang.String filterName)

Return the filter definition for the specified filter name, if any; otherwise return null.

Parameters:

filterName - Filter name to look up

findFilterDefs

public FilterDef[] findFilterDefs()

Return the set of defined filters for this Context.

findFilterMaps

public FilterMap[] findFilterMaps()

Return the set of filter mappings for this Context.

findInstanceListeners

public java.lang.String[] findInstanceListeners()

Return the set of InstanceListener classes that will be added to newly created Wrappers automatically.

findLocalEjb

public ContextLocalEjb findLocalEjb(java.lang.String name)

Return the local EJB resource reference with the specified name, if any; otherwise, return null.

Parameters:

name - Name of the desired EJB resource reference

findLocalEjbs

public ContextLocalEjb[] findLocalEjbs()

Return the defined local EJB resource references for this application. If there are none, a zero-length array is returned.

findMimeMapping

public java.lang.String findMimeMapping(java.lang.String extension)

Return the MIME type to which the specified extension is mapped, if any; otherwise return null.

Parameters:

extension - Extension to map to a MIME type

findMimeMappings

public java.lang.String[] findMimeMappings()

Return the extensions for which MIME mappings are defined. If there are none, a zero-length array is returned.

findParameter

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

Return the value for the specified context initialization parameter name, if any; otherwise return null.

Parameters:

name - Name of the parameter to return

findParameters

public java.lang.String[] findParameters()

Return the names of all defined context initialization parameters for this Context. If no parameters are defined, a zero-length array is returned.

findResource

public ContextResource findResource(java.lang.String name)

Return the resource reference with the specified name, if any; otherwise return null.

Parameters:

name - Name of the desired resource reference

findResourceEnvRef

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

Return the resource environment reference type for the specified name, if any; otherwise return null.

Parameters:

name - Name of the desired resource environment reference

findResourceEnvRefs

public java.lang.String[] findResourceEnvRefs()

Return the set of resource environment reference names for this web application. If none have been specified, a zero-length array is returned.

findResources

public ContextResource[] findResources()

Return the defined resource references for this application. If none have been defined, a zero-length array is returned.

findRoleMapping

public java.lang.String findRoleMapping(java.lang.String role)

For the given security role (as used by an application), return the corresponding role name (as defined by the underlying Realm) if there is one. Otherwise, return the specified role unchanged.

Parameters:

role - Security role to map

findSecurityRole

public boolean findSecurityRole(java.lang.String role)

Return true if the specified security role is defined for this application; otherwise return false.

Parameters:

role - Security role to verify

findSecurityRoles

public java.lang.String[] findSecurityRoles()

Return the security roles defined for this application. If none have been defined, a zero-length array is returned.

findServletMapping

public java.lang.String findServletMapping(java.lang.String pattern)

Return the servlet name mapped by the specified pattern (if any); otherwise return null.

Parameters:

pattern - Pattern for which a mapping is requested

findServletMappings

public java.lang.String[] findServletMappings()

Return the patterns of all defined servlet mappings for this Context. If no mappings are defined, a zero-length array is returned.

findStatusPage

public java.lang.String findStatusPage(int status)

Return the context-relative URI of the error page for the specified HTTP status code, if any; otherwise return null.

Parameters:

status - HTTP status code to look up

findStatusPages

public int[] findStatusPages()

Return the set of HTTP status codes for which error pages have been specified. If none are specified, a zero-length array is returned.

findTaglib

public java.lang.String findTaglib(java.lang.String uri)

Return the tag library descriptor location for the specified taglib URI, if any; otherwise, return null.

Parameters:

uri - URI, relative to the web.xml file

findTaglibs

public java.lang.String[] findTaglibs()

Return the URIs of all tag libraries for which a tag library descriptor location has been specified. If none are specified, a zero-length array is returned.

findWelcomeFile

public boolean findWelcomeFile(java.lang.String name)

Return true if the specified welcome file is defined for this Context; otherwise return false.

Parameters:

name - Welcome file to verify

findWelcomeFiles

public java.lang.String[] findWelcomeFiles()

Return the set of welcome files defined for this Context. If none are defined, a zero-length array is returned.

findWrapperLifecycles

public java.lang.String[] findWrapperLifecycles()

Return the set of LifecycleListener classes that will be added to newly created Wrappers automatically.

findWrapperListeners

public java.lang.String[] findWrapperListeners()

Return the set of ContainerListener classes that will be added to newly created Wrappers automatically.

reload

public void reload()

Reload this web application, if reloading is supported.

Throws:

java.lang.IllegalStateException - if the reloadable property is set to false.

removeApplicationListener

public void removeApplicationListener(java.lang.String listener)

Remove the specified application listener class from the set of listeners for this application.

Parameters:

listener - Java class name of the listener to be removed

removeApplicationParameter

public void removeApplicationParameter(java.lang.String name)

Remove the application parameter with the specified name from the set for this application.

Parameters:

name - Name of the application parameter to remove

removeConstraint

public void removeConstraint(SecurityConstraint constraint)

Remove the specified security constraint from this web application.

Parameters:

constraint - Constraint to be removed

removeEjb

public void removeEjb(java.lang.String name)

Remove any EJB resource reference with the specified name.

Parameters:

name - Name of the EJB resource reference to remove

removeEnvironment

public void removeEnvironment(java.lang.String name)

Remove any environment entry with the specified name.

Parameters:

name - Name of the environment entry to remove

removeErrorPage

public void removeErrorPage(ErrorPage errorPage)

Remove the error page for the specified error code or Java language exception, if it exists; otherwise, no action is taken.

Parameters:

errorPage - The error page definition to be removed

removeFilterDef

public void removeFilterDef(FilterDef filterDef)

Remove the specified filter definition from this Context, if it exists; otherwise, no action is taken.

Parameters:

filterDef - Filter definition to be removed

removeFilterMap

public void removeFilterMap(FilterMap filterMap)

Remove a filter mapping from this Context.

Parameters:

filterMap - The filter mapping to be removed

removeInstanceListener

public void removeInstanceListener(java.lang.String listener)

Remove a class name from the set of InstanceListener classes that will be added to newly created Wrappers.

Parameters:

listener - Class name of an InstanceListener class to be removed

removeLocalEjb

public void removeLocalEjb(java.lang.String name)

Remove any local EJB resource reference with the specified name.

Parameters:

name - Name of the EJB resource reference to remove

removeMimeMapping

public void removeMimeMapping(java.lang.String extension)

Remove the MIME mapping for the specified extension, if it exists; otherwise, no action is taken.

Parameters:

extension - Extension to remove the mapping for

removeParameter

public void removeParameter(java.lang.String name)

Remove the context initialization parameter with the specified name, if it exists; otherwise, no action is taken.

Parameters:

name - Name of the parameter to remove

removeResource

public void removeResource(java.lang.String name)

Remove any resource reference with the specified name.

Parameters:

name - Name of the resource reference to remove

removeResourceEnvRef

public void removeResourceEnvRef(java.lang.String name)

Remove any resource environment reference with the specified name.

Parameters:

name - Name of the resource environment reference to remove

removeRoleMapping

public void removeRoleMapping(java.lang.String role)

Remove any security role reference for the specified name

Parameters:

role - Security role (as used in the application) to remove

removeSecurityRole

public void removeSecurityRole(java.lang.String role)

Remove any security role with the specified name.

Parameters:

role - Security role to remove

removeServletMapping

public void removeServletMapping(java.lang.String pattern)

Remove any servlet mapping for the specified pattern, if it exists; otherwise, no action is taken.

Parameters:

pattern - URL pattern of the mapping to remove

removeTaglib

public void removeTaglib(java.lang.String uri)

Remove the tag library location forthe specified tag library URI.

Parameters:

uri - URI, relative to the web.xml file

removeWelcomeFile

public void removeWelcomeFile(java.lang.String name)

Remove the specified welcome file name from the list recognized by this Context.

Parameters:

name - Name of the welcome file to be removed

removeWrapperLifecycle

public void removeWrapperLifecycle(java.lang.String listener)

Remove a class name from the set of LifecycleListener classes that will be added to newly created Wrappers.

Parameters:

listener - Class name of a LifecycleListener class to be removed

removeWrapperListener

public void removeWrapperListener(java.lang.String listener)

Remove a class name from the set of ContainerListener classes that will be added to newly created Wrappers.

Parameters:

listener - Class name of a ContainerListener class to be removed