raar.process
Class RAProcess

java.lang.Object
  raar.process.RAProcess

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

RAActor, RAExternalProcess, RASensor, RASpecialProcess

public class RAProcess

extends java.lang.Object

implements java.io.Serializable

RAProcess models a process in the RA environment. Process has:

• An internal statement(set)
• An internal register
• Inputs, modelled as an RASetRegister
• Output, modelled as an RAFetchRegister

A process is usually constructed by the RACompiler which interprets and compiles the RAAR code to these four components. Processes are chained using the RAAgent class.

See Also:

Serialized Form

Field Summary

protected boolean	hasRun
protected RASetRegister	inregister
protected RAFetchRegister	outregister
protected RARegister	register
protected java.lang.String	sourceCode
protected RAStatement	statement

Constructor Summary

RAProcess(RARegister register, RAStatement statement, RASetRegister inregister, RAFetchRegister outregister)
Construct an RAProcess with register, statement(set), input and output.

Method Summary

boolean	acceptsInput(RADataType obj, java.lang.String name) Returns true if the process would accept the specified input object and name.
java.lang.Object	clone() Clone the process.
void	dumpRegisters() Give a System.out dump of the current content of all the registers (input, output, and internal).
void	execute() Executes the statement(set) in this process without updating the register and outputs first resp. afterwards!
RADataType	get(java.lang.String key) Get a specific key's value from the output register.
RADataType	getDataType(java.lang.String name) Returns the datatype for a given name.
java.util.Vector	getInputNames() Get a String vector containing the names of the keys the input register stores (in order).
java.util.Vector	getInputObjects() Get an RADataType vector containing the current content of the input register.
java.util.Vector	getOutputNames() Get a String vector containing the names of the keys the output register stores (in order).
java.util.Vector	getOutputObjects() Get an RADataType vector containing the current content of the output register.
java.lang.String	getProcessName() Get the process name.
java.lang.String	getSourceCode() Get the process source code.
boolean	isSpecial() Use this method to determine whether this process is a special one that should be executed before other processes (i.e. processes with this value on true will ALL be executed before processes with this value on false, and their outputs will be sent to connected inputs, also before the processes with this flag on false start).
void	reset() Reset process by physically erasing the data in the registers.
void	run() Run the process; first set all outputs to null.
void	set(java.lang.String key, RADataType value) Set a specific key in the input register to a specific value.
void	setProcessName(java.lang.String name) Set the process name.
void	setSourceCode(java.lang.String code) Set the process source code; subclasses may throw the exception.
boolean	suppliesOutput(RADataType obj, java.lang.String name) Returns true if the process can supply the specified output object and name.

Methods inherited from class java.lang.Object

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

Field Detail

sourceCode

protected java.lang.String sourceCode

statement

protected RAStatement statement

register

protected RARegister register

inregister

protected RASetRegister inregister

outregister

protected RAFetchRegister outregister

hasRun

protected boolean hasRun

Constructor Detail

RAProcess

public RAProcess(RARegister register,
                 RAStatement statement,
                 RASetRegister inregister,
                 RAFetchRegister outregister)

Construct an RAProcess with register, statement(set), input and output.

Method Detail

reset

public void reset()
           throws RAException

Reset process by physically erasing the data in the registers.

Throws:

RAException

setProcessName

public void setProcessName(java.lang.String name)

Set the process name.

getProcessName

public java.lang.String getProcessName()

Get the process name.

setSourceCode

public void setSourceCode(java.lang.String code)
                   throws RAException

Set the process source code; subclasses may throw the exception.

Throws:

RAException

getSourceCode

public java.lang.String getSourceCode()

Get the process source code.

execute

public void execute()
             throws RAException

Executes the statement(set) in this process without updating the register and outputs first resp. afterwards!

Throws:

RAException

run

public void run()
         throws RAException

Run the process; first set all outputs to null. Then copy the inputs from the input register to the internal register, execute the process, and copy outputs to the output register. Then set all inputs to null as well.

Throws:

RAException

dumpRegisters

public void dumpRegisters()

Give a System.out dump of the current content of all the registers (input, output, and internal).

set

public void set(java.lang.String key,
                RADataType value)
         throws RAException

Set a specific key in the input register to a specific value.

Throws:

RAException

get

public RADataType get(java.lang.String key)
               throws RAException

Get a specific key's value from the output register.

Throws:

RAException

getInputNames

public java.util.Vector getInputNames()

Get a String vector containing the names of the keys the input register stores (in order). This shows a user which inputs a process has (by name).

getInputObjects

public java.util.Vector getInputObjects()

Get an RADataType vector containing the current content of the input register. Rather than manipulating this content in a sneaky way now, you should use this feature to determine the datatypes of the content. This enables checking whether certain connections are allowed between (various) processes' out- and input.

getOutputNames

public java.util.Vector getOutputNames()

Get a String vector containing the names of the keys the output register stores (in order). This shows a user which outputs a process has (by name).

getOutputObjects

public java.util.Vector getOutputObjects()

Get an RADataType vector containing the current content of the output register. Rather than manipulating this content in a sneaky way now, you should use this feature to determine the datatypes of the content. This enables checking whether certain connections are allowed between (various) processes' out- and input.

acceptsInput

public boolean acceptsInput(RADataType obj,
                            java.lang.String name)

Returns true if the process would accept the specified input object and name.

suppliesOutput

public boolean suppliesOutput(RADataType obj,
                              java.lang.String name)

Returns true if the process can supply the specified output object and name.

getDataType

public RADataType getDataType(java.lang.String name)
                       throws RAException

Returns the datatype for a given name. Necessary for making healthy connections.

Throws:

RAException

isSpecial

public boolean isSpecial()

Use this method to determine whether this process is a special one that should be executed before other processes (i.e. processes with this value on true will ALL be executed before processes with this value on false, and their outputs will be sent to connected inputs, also before the processes with this flag on false start). This is particularly useful for SUPPRESS and INHIBIT.

This process class is a regular one that therefore will return false.

clone

public java.lang.Object clone()

Clone the process.