org.moeaframework.algorithm.pisa
Class State

java.lang.Object
  org.moeaframework.algorithm.pisa.State

public class State
extends Object

Reads and writes PISA state files.

Constructor Summary

State(File file)
Constructs a state indicator backed by the specified file.

Method Summary

int	get() Reads the state.
void	set(int state) Sets the state.
void	waitFor(int state) Blocks until the state becomes the specified value.
int	waitWhile(int state) Blocks while the state remains at the specified value, returning the new state value when it changes.

Methods inherited from class java.lang.Object

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

Constructor Detail

State

public State(File file)

Constructs a state indicator backed by the specified file.

Parameters:

file - the state file

Method Detail

get

public int get()
        throws IOException

Reads the state.

Returns:

the state

Throws:

IOException - if an I/O error occurred

set

public void set(int state)
         throws IOException,
                InterruptedException

Sets the state.

Parameters:

state - the state

Throws:

IOException - if an I/O error occurred

InterruptedException - if Thread.sleep(long) was interrupted

waitFor

public void waitFor(int state)
             throws IOException,
                    InterruptedException

Blocks until the state becomes the specified value.

Parameters:

state - the state to wait for

Throws:

IOException - if an I/O error occurred

InterruptedException - if Thread.sleep(long) was interrupted

waitWhile

public int waitWhile(int state)
              throws IOException,
                     InterruptedException

Blocks while the state remains at the specified value, returning the new state value when it changes.

Parameters:

state - the state to wait on

Returns:

the new state

Throws:

IOException - if an I/O error occurred

InterruptedException - if Thread.sleep(long) was interrupted