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org.apache.derby.iapi.services.context
Class ContextManager  

java.lang.Object
  org.apache.derby.iapi.services.context.ContextManager

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public class ContextManager

extends java.lang.Object

The ContextManager collects contexts as they are created. It maintains stacks of contexts by named ids, so that the top context of a given type can be returned. It also maintains a global stack so that contexts can be traversed in the order they were created.

The first implementation of the context manager assumes there is only one thread to worry about and that the user(s) of the class only create one instance of ContextManager.

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Field Summary
(package private)  int	activeCount
(package private)  java.lang.Thread	activeThread
(package private)  java.util.Stack	cmStack
private  java.util.Hashtable	ctxTable
private  org.apache.derby.iapi.services.stream.HeaderPrintWriter	errorStream
private  ErrorStringBuilder	errorStringBuilder
private  org.apache.derby.iapi.services.i18n.LocaleFinder	finder
private  java.util.Stack	holder
private  int	logSeverityLevel
private  java.util.Locale	messageLocale
(package private)  ContextService	owningCsf
private  boolean	shutdown

 

Constructor Summary
(package private)	ContextManager(ContextService csf, org.apache.derby.iapi.services.stream.HeaderPrintWriter stream)           constructor specifying the hash table size and load factor for the hashed-by-id context stacks.

 

Method Summary
private  void	checkInterrupt()           Check to see if we have been interrupted.
boolean	cleanupOnError(java.lang.Throwable error)
private  void	flushErrorString()           Flush the built up error string to whereever it is supposed to go, and reset the error string
Context	getContext(java.lang.String contextId)
java.util.Locale	getMessageLocale()
void	popContext()
(package private)  void	popContext(Context theContext)
void	pushContext(Context newContext)
private  boolean	reportError(java.lang.Throwable t)
(package private)  boolean	setInterrupted(Context c)
void	setLocaleFinder(org.apache.derby.iapi.services.i18n.LocaleFinder finder)           Set the locale for this context.
void	setMessageLocale(java.lang.String localeID)

 

Methods inherited from class java.lang.Object

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

 

Field Detail

holder

private final java.util.Stack holder

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messageLocale

private java.util.Locale messageLocale

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ctxTable

private final java.util.Hashtable ctxTable

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owningCsf

final ContextService owningCsf

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logSeverityLevel

private int logSeverityLevel

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errorStream

private org.apache.derby.iapi.services.stream.HeaderPrintWriter errorStream

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errorStringBuilder

private ErrorStringBuilder errorStringBuilder

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shutdown

private boolean shutdown

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finder

private org.apache.derby.iapi.services.i18n.LocaleFinder finder

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cmStack

final java.util.Stack cmStack

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activeThread

java.lang.Thread activeThread

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activeCount

int activeCount

Constructor Detail

ContextManager

ContextManager(ContextService csf,
               org.apache.derby.iapi.services.stream.HeaderPrintWriter stream)

constructor specifying the hash table size and load factor for the hashed-by-id context stacks.

Method Detail

pushContext

public void pushContext(Context newContext)

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getContext

public Context getContext(java.lang.String contextId)

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popContext

public void popContext()

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popContext

void popContext(Context theContext)

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cleanupOnError

public boolean cleanupOnError(java.lang.Throwable error)

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setInterrupted

boolean setInterrupted(Context c)

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checkInterrupt

private void checkInterrupt()

Check to see if we have been interrupted. If we have then a ShutdownException will be thrown. This will be either the one passed to interrupt or a generic one if some outside source interrupted the thread.

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setLocaleFinder

public void setLocaleFinder(org.apache.derby.iapi.services.i18n.LocaleFinder finder)

Set the locale for this context.

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setMessageLocale

public void setMessageLocale(java.lang.String localeID)
                      throws org.apache.derby.iapi.error.StandardException

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getMessageLocale

public java.util.Locale getMessageLocale()

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flushErrorString

private void flushErrorString()

Flush the built up error string to whereever it is supposed to go, and reset the error string

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reportError

private boolean reportError(java.lang.Throwable t)

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> org >> apache >> derby >> iapi >> services >> [ context overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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