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Java Source Code / Java Documentation » Library » Apache commons chain 1.1 src » org.apache.commons.chain.impl

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

org.apache.commons.chain.impl .ChainBase

All known Subclasses:   org.apache.commons.chain.config .TestChain,
ChainBase
public class ChainBase implements Chain(Code)

Convenience base class for Chain implementations.

author:
   Craig R. McClanahan
version:
   $Revision: 411876 $ $Date: 2006-06-05 19:02:19 +0100 (Mon, 05 Jun 2006) $

Field Summary
protected Command[] commands

protected boolean frozen


Constructor Summary
public ChainBase()

public ChainBase(Command command)

public ChainBase(Command[] commands)

public ChainBase(Collection commands)


Method Summary
public void addCommand(Command command)
     See the Chain JavaDoc.
public boolean execute(Context context)
     See the Chain JavaDoc.
Command[] getCommands()

Return an array of the configured Command s for this Chain .

Field Detail
commands
protected Command[] commands(Code)

The list of Command s configured for this Chain , in the order in which they may delegate processing to the remainder of the Chain .

frozen
protected boolean frozen(Code)

Flag indicating whether the configuration of our commands list has been frozen by a call to the execute() method.

Constructor Detail
ChainBase
public ChainBase()(Code)

Construct a Chain with no configured Command s.

ChainBase
public ChainBase(Command command)(Code)

Construct a Chain configured with the specified Command .

Parameters:
  command - The Command to be configured
exception:
  IllegalArgumentException - if commandis null

ChainBase
public ChainBase(Command[] commands)(Code)

Construct a Chain configured with the specified Command s.

Parameters:
  commands - The Commands to be configured
exception:
  IllegalArgumentException - if commands,or one of the individual Command elements,is null

ChainBase
public ChainBase(Collection commands)(Code)

Construct a Chain configured with the specified Command s.

Parameters:
  commands - The Commands to be configured
exception:
  IllegalArgumentException - if commands,or one of the individual Command elements,is null

Method Detail
addCommand
public void addCommand(Command command)(Code)
See the Chain JavaDoc.
Parameters:
  command - The Command to be added
exception:
  IllegalArgumentException - if commandis null
exception:
  IllegalStateException - if no further configuration is allowed

execute
public boolean execute(Context context) throws Exception(Code)
See the Chain JavaDoc.
Parameters:
  context - The Context to be processed by thisChain
throws:
  Exception - if thrown by one of the Commandsin this Chain but not handled by a postprocess()method of a Filter
throws:
  IllegalArgumentException - if contextis null true if the processing of this Contexthas been completed, or false if the processingof this Context should be delegated to a subsequentCommand in an enclosing Chain

getCommands
Command[] getCommands()(Code)

Return an array of the configured Command s for this Chain . This method is package private, and is used only for the unit tests.

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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