org.apache.catalina.startup
Class Tomcat.ExistingStandardWrapper

java.lang.Object
  org.apache.catalina.util.LifecycleBase
      org.apache.catalina.util.LifecycleMBeanBase
          org.apache.catalina.core.ContainerBase
              org.apache.catalina.core.StandardWrapper
                  org.apache.catalina.startup.Tomcat.ExistingStandardWrapper

All Implemented Interfaces:

MBeanRegistration, NotificationBroadcaster, NotificationEmitter, ServletConfig, Container, Lifecycle, Wrapper

Enclosing class:

Tomcat

public static class Tomcat.ExistingStandardWrapper
extends StandardWrapper

Helper class for wrapping existing servlets. This disables servlet lifecycle and normal reloading, but also reduces overhead and provide more direct control over the servlet.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.catalina.core.ContainerBase

ContainerBase.ContainerBackgroundProcessor, ContainerBase.NoopAccessLog, ContainerBase.PrivilegedAddChild

Field Summary

Fields inherited from class org.apache.catalina.core.StandardWrapper

asyncSupported, available, broadcaster, classLoadTime, classType, classTypeUsedInService, countAllocated, DEFAULT_SERVLET_METHODS, enabled, facade, info, instance, instanceInitialized, instancePool, instanceSupport, isJspServlet, jspMonitorON, loadOnStartup, loadTime, mappings, maxInstances, multipartConfigElement, nInstances, notificationInfo, parameters, references, runAs, sequenceNumber, servletClass, singleThreadModel, swallowOutput, swValve, unloadDelay, unloading

Fields inherited from class org.apache.catalina.core.ContainerBase

accessLog, backgroundProcessorDelay, children, cluster, listeners, loader, logger, logName, manager, name, parent, parentClassLoader, pipeline, realm, resources, sm, startChildren, support

Fields inherited from class org.apache.catalina.util.LifecycleMBeanBase

mserver

Fields inherited from interface org.apache.catalina.Wrapper

ADD_MAPPING_EVENT, REMOVE_MAPPING_EVENT

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

Fields inherited from interface org.apache.catalina.Lifecycle

AFTER_INIT_EVENT, AFTER_START_EVENT, AFTER_STOP_EVENT, BEFORE_INIT_EVENT, BEFORE_START_EVENT, BEFORE_STOP_EVENT, CONFIGURE_START_EVENT, CONFIGURE_STOP_EVENT, DESTROY_EVENT, PERIODIC_EVENT, START_EVENT, STOP_EVENT

Constructor Summary

Tomcat.ExistingStandardWrapper(Servlet existing)

Method Summary

long	getAvailable() Return the available date/time for this servlet, in milliseconds since the epoch.
boolean	isUnavailable() Is this servlet currently unavailable?
Servlet	loadServlet() Load and initialize an instance of this servlet, if there is not already at least one initialized instance.

Methods inherited from class org.apache.catalina.core.StandardWrapper

addChild, addDefaultMapper, addInitParameter, addInstanceListener, addMapping, addNotificationListener, addSecurityReference, allocate, backgroundProcess, deallocate, findInitParameter, findInitParameters, findMappingObject, findMappings, findSecurityReference, findSecurityReferences, getAllDeclaredMethods, getClassLoadTime, getCountAllocated, getErrorCount, getInfo, getInitParameter, getInitParameterNames, getInstanceSupport, getLoadOnStartup, getLoadOnStartupString, getLoadTime, getMaxInstances, getMaxTime, getMinTime, getMultipartConfigElement, getNotificationInfo, getObjectNameKeyProperties, getProcessingTime, getRequestCount, getRootCause, getRunAs, getServlet, getServletClass, getServletContext, getServletMethods, getServletName, incrementErrorCount, isAsyncSupported, isContainerProvidedServlet, isEnabled, isEventProvider, isSingleThreadModel, isStateManageable, isStatisticsProvider, load, removeInitParameter, removeInstanceListener, removeMapping, removeNotificationListener, removeNotificationListener, removeSecurityReference, setAsyncSupported, setAvailable, setEnabled, setErrorCount, setLoadOnStartup, setLoadOnStartupString, setLoadTime, setMaxInstances, setMaxTime, setMinTime, setMultipartConfigElement, setParent, setProcessingTime, setRequestCount, setRunAs, setServlet, setServletClass, setServletName, startInternal, stopInternal, toString, unavailable, unload

Methods inherited from class org.apache.catalina.core.ContainerBase

addContainerListener, addPropertyChangeListener, addValve, destroyInternal, findChild, findChildren, findContainerListeners, fireContainerEvent, getAccessLog, getBackgroundProcessorDelay, getChildren, getCluster, getDomainInternal, getLoader, getLogger, getManager, getMappingObject, getName, getParent, getParentClassLoader, getPipeline, getRealm, getResources, getStartChildren, invoke, logAccess, logName, removeChild, removeContainerListener, removePropertyChangeListener, setBackgroundProcessorDelay, setCluster, setLoader, setManager, setName, setParentClassLoader, setRealm, setResources, setStartChildren, threadStart, threadStop

Methods inherited from class org.apache.catalina.util.LifecycleMBeanBase

getDomain, getObjectName, initInternal, postDeregister, postRegister, preDeregister, preRegister, register, setDomain, unregister

Methods inherited from class org.apache.catalina.util.LifecycleBase

addLifecycleListener, destroy, findLifecycleListeners, fireLifecycleEvent, getState, getStateName, init, removeLifecycleListener, setState, setState, start, stop

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.catalina.Container

addContainerListener, addPropertyChangeListener, findChild, findChildren, findContainerListeners, fireContainerEvent, getAccessLog, getBackgroundProcessorDelay, getCluster, getLoader, getLogger, getManager, getMappingObject, getName, getObjectName, getParent, getParentClassLoader, getPipeline, getRealm, getResources, invoke, logAccess, removeChild, removeContainerListener, removePropertyChangeListener, setBackgroundProcessorDelay, setCluster, setLoader, setManager, setName, setParentClassLoader, setRealm, setResources

Methods inherited from interface org.apache.catalina.Lifecycle

addLifecycleListener, destroy, findLifecycleListeners, getState, getStateName, init, removeLifecycleListener, start, stop

Constructor Detail

Tomcat.ExistingStandardWrapper

public Tomcat.ExistingStandardWrapper(Servlet existing)

Method Detail

loadServlet

public Servlet loadServlet()
                    throws ServletException

Description copied from class: StandardWrapper

Load and initialize an instance of this servlet, if there is not already at least one initialized instance. This can be used, for example, to load servlets that are marked in the deployment descriptor to be loaded at server startup time.

Overrides:

loadServlet in class StandardWrapper

Throws:

ServletException

getAvailable

public long getAvailable()

Description copied from class: StandardWrapper

Return the available date/time for this servlet, in milliseconds since the epoch. If this date/time is Long.MAX_VALUE, it is considered to mean that unavailability is permanent and any request for this servlet will return an SC_NOT_FOUND error. If this date/time is in the future, any request for this servlet will return an SC_SERVICE_UNAVAILABLE error. If it is zero, the servlet is currently available.

Specified by:

getAvailable in interface Wrapper

Overrides:

getAvailable in class StandardWrapper

isUnavailable

public boolean isUnavailable()

Description copied from class: StandardWrapper

Is this servlet currently unavailable?

Specified by:

isUnavailable in interface Wrapper

Overrides:

isUnavailable in class StandardWrapper