edu.ksu.cis.projects.bogor.module.state
Class DefaultThreadStore

java.lang.Object
  edu.ksu.cis.projects.bogor.module.state.DefaultThreadStore

All Implemented Interfaces:

Disposable, Serializable

public class DefaultThreadStore
extends Object
implements Disposable, Serializable

A class that is used as a thread store.

Version:

CVS $Revision: 1.8 $ $Date: 2004/12/18 22:36:34 $

Author:

Robby

See Also:

Serialized Form

Field Summary

protected IValueArray	localValues Holds the local values of this thread store.
protected ArrayList<IValueArray>	valueStack Holds the stack of local values of this thread store ArrayList<IValueArray>.

Constructor Summary

protected	DefaultThreadStore() Private constructor for cloning purposes.
protected	DefaultThreadStore(IValueArray localValues) Default constructor.

Method Summary

DefaultThreadStore	clone(Map<Object,Object> cloneMap) Deep clone this thread store.
void	dispose() Remove references.
void	enterFunction(IValueArray localValues) Enters a function.
IValueArray	exitFunction() Exits a function for particular thread.
int	getLocalCount() Gets the number of locals.
IValue	getLocalValue(int localIndex) Gets a local's value.
IValueArray	getLocalValues() Gets the local values of this thread store.
IValueArray[]	getLocalValuesStack() Gets local values stack.
int	getStackHeight() Gets local values stack height.
void	setLocalValue(int localIndex, IValue value) Gets a local's value.
void	validate(IBogorConfiguration bc)

Methods inherited from class java.lang.Object

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

Field Detail

valueStack

protected ArrayList<IValueArray> valueStack

Holds the stack of local values of this thread store ArrayList<IValueArray>. Non-null.

localValues

protected IValueArray localValues

Holds the local values of this thread store. Non-null.

Constructor Detail

DefaultThreadStore

protected DefaultThreadStore(IValueArray localValues)

Default constructor.

DefaultThreadStore

protected DefaultThreadStore()

Private constructor for cloning purposes.

Method Detail

getLocalCount

public int getLocalCount()

Gets the number of locals.

Returns:

The number of locals.

setLocalValue

public void setLocalValue(int localIndex,
                          IValue value)

Gets a local's value.

Parameters:

localIndex - The index of the local. Must be at least zero and at most less than the number of locals.

value - The local's value.

See Also:

FSMSymbolTable.getLocalIndexTable()

getLocalValue

public IValue getLocalValue(int localIndex)

Gets a local's value.

Parameters:

localIndex - The index of the local. Must be at least zero and at most less than the number of locals.

Returns:

The local's value. Non-null.

See Also:

FSMSymbolTable.getLocalIndexTable()

getLocalValues

public IValueArray getLocalValues()

Gets the local values of this thread store.

Returns:

The local values of this thread store. Non-null. Each element is non-null.

getLocalValuesStack

public IValueArray[] getLocalValuesStack()

Gets local values stack.

Returns:

The local values stack. Non-null. Each element is non-null. Top most (current) local values is at index zero.

getStackHeight

public int getStackHeight()

Gets local values stack height.

Returns:

The local values stack height. At least one.

clone

public DefaultThreadStore clone(Map<Object,Object> cloneMap)

Deep clone this thread store.

Parameters:

cloneMap - Original values (IValue) to their clones ( IValue) mapping. The clone map to solve circular references in values.

Returns:

The clone of this thread store. Non-null.

dispose

public void dispose()

Description copied from interface: Disposable

Remove references. Once called, avoid using this object.

Specified by:

dispose in interface Disposable

enterFunction

public void enterFunction(IValueArray localValues)

Enters a function. The current thread local values are pushed to a stack. Sets the local values to the new ones.

Parameters:

localValues - The local values of the function to be entered. Must be non-null. Each element must be non-null.

exitFunction

public IValueArray exitFunction()

Exits a function for particular thread. The stack must not be empty. Sets the local values from top of the stack.

Returns:

The local values of the exited function. Non-null. Each element is non-null.

validate

public void validate(IBogorConfiguration bc)