fuego.papi
Class InstanceInfo

java.lang.Object
  fuego.papi.InstanceId
      fuego.papi.InstanceInfo

All Implemented Interfaces:

Serializable, Comparable

public abstract class InstanceInfo
extends InstanceId
implements Serializable

See Also:

Serialized Form

Field Summary

Fields inherited from class fuego.papi.InstanceId

NAME_SEPARATOR, ORGANIZATION_SEPARATOR

Constructor Summary

InstanceInfo()

Method Summary

abstract Activity	getActivity() Deprecated. use ProcessServiceSession.processGet(String) and then call Process.getActivity(String) instead.
abstract Time	getActivityDeadline() Returns the deadline to complete the current activity
abstract String	getActivityId() Returns the activity identification of this instance
abstract String	getActivityName() Returns the activity name of this instance
abstract int	getAuthor() Return the instance creator.
abstract String	getAuthorId() Return the instance author id. null means no Participant, "ENGINE" means automatic/engine participant
Time	getCreationTime() Instance creation time.
abstract Time	getDeadline() Returns the deadline for this instance in its current activity
abstract String	getDescription() Returns the instance description.
abstract Object	getExternalVariable(String variableId) Returns the value of any external variable by id.
abstract Object	getExternalVariable(String variableId, Locale locale) Returns the value of any external variable by id for a given locale.
abstract String	getId() Return the instance identification.
abstract InstanceActivityPair	getInstanceActivityPair() This method creates and returns an InstanceActivityPair which is needed in order to perform any operation with this instance.
abstract int	getInternalState()
long	getKey() Private method.
static long	getKey(String instanceId)
abstract Object	getNormalVariable(String variableId) Returns the value of any normal variable by id.
abstract int	getNumberOfThreads() Returns the number of threads (copies) this instance has.
abstract int	getParentThreadIn() Returns the parent instance thread identification number
abstract String	getParticipantId() Returns the participant selecting this instance.
abstract int	getParticipantIn() Returns the participant identification number of this instance
abstract int	getPendingTaskIn() Gets the pending task number of the task that must be re-run.
abstract int	getPriority() Returns the instance's priority
abstract Process	getProcess() Deprecated. use ProcessServiceSession.processGet(String) or ProcessServiceSession.processGet(int) instead
abstract Time	getProcessDeadline() Returns the instance process deadline.
abstract String	getProcessId() Rerturns the process Id of this instance.
abstract Time	getReceptionTime() Time when this process instance reached the current activity
abstract String	getRoleId() Returns the role identification of this instance
abstract int	getRoleIn() Returns the role identification number of this instance
abstract InstanceStamp	getStamp() Deprecated. Do not use this method. Use getInstanceActivityPair() instead.
static InstanceStamp	getStamp(String stampId) Deprecated. Use InstanceActivityPair.valueOf(String) instead.
static InstanceStamp	getStamp(String instanceId, String activityName) Deprecated. Use InstanceActivityPair.valueOf(String, String) instead.
abstract InstanceStamp	getStampForActivity(String activityName) Deprecated. Use getInstanceActivityPair() instead.
abstract int	getStatus() Returns the instance status
abstract String	getStatusDescription(Locale locale) Returns the instance status desciption
abstract Task	getTask(int taskNumber) Returns the metadata task for the specific task index
abstract Task	getTask(String taskId) Returns the metadata task for the specific task id
abstract int	getTaskCount() This method returns the quantity of tasks for this instance.
abstract int	getTaskIn(int taskNumber) Returns the task identification number for the task number.
abstract int	getTaskInternalStatus(int taskNumber) Returns an integer describing the current state of this process instance item.
abstract String	getTaskLastExecutionParticipant(int taskNumber) Return the last participant UID that execute the specific task.
abstract Time	getTaskLastExecutionTime(int taskNumber) Return the last time execution of the specific task.
abstract String	getTaskParticipantId(int taskNumber) Rerturns the participant selecting the task.
abstract int	getTaskRetryCounter(int taskNumber) Returns the retryCounter for the passed task
abstract Task[]	getTasks() Returns the metadata task for the task in this instace
abstract String	getTaskStatusDescription(int taskNumber, Locale locale) Returns the task status desciption
abstract Object	getVar(String variableId) Deprecated. use getVariable(String) instead
abstract Object	getVar(String variableId, Locale locale) Deprecated. use getVariable(String, java.util.Locale) instead
abstract Object	getVariable(String variableId) Returns the value of any variable by id.
abstract Object	getVariable(String variableId, Locale locale) Returns the value of any variable by id for a given locale.
abstract boolean	hasPendingTasks() This methods returns true if the process instance has mandatory items that still need to be runned.
abstract boolean	hasRepeatableTasks() This methods returns true if the process instance has any repeatable item.
abstract void	invalidateTask(int taskNumber) This method invalidates the specific task index
abstract boolean	isAborted() Returns whether or not the process instance is aborted
abstract boolean	isActivityCompleted() Returns whether or not the process instance has the activity completed
abstract boolean	isCompleted() Returns whether or not the process instance is completed
abstract boolean	isException() Returns whether or not the process instance is an exception
abstract boolean	isExecuting() Returns if this instance is executing or not.
abstract boolean	isGrabbed() Returns whether or not the process instance is grabbed
abstract boolean	isPending() Returns whether or not the process instance is pending
abstract boolean	isRunning() Returns whether or not the process instance is running
abstract boolean	isSelected() Returns if this instance is selected or not.
boolean	isSelectedBy(String participantId) Returns if this instance was selected by the given participant.
abstract boolean	isSuspended() Returns whether or not the process instance is suspended
abstract boolean	isTaskCompleted(int taskNumber) Returns whether or not this process instance item is already completed
abstract boolean	isTaskRunning(int taskNumber) Returns whether or not the process instance item is being executed
abstract boolean	isTaskSelected(int taskNumber) Returns whether or not this process instance item is currently selected Note: Repeatable items can be selected even if they have already been completed
abstract boolean	isTaskValid(int taskNumber) Returns if the specific task index is valid or not in this instance
static String	makeGlobalId(String organization, String processId, int instanceIn, int threadIn) Builds the id in the way instanceId+ORGANIZATION_SEPARATOR+organization. If it is needed to build an instanceId, use makeId() instead. To get the Organization use getOrganization, to obtain the instanceId alone use getInstanceId.
static String	makeId(String processId, int instanceIn, int threadIn) Build the instance id based on the different values. instanceId = "PrcessId/InstanceIn/ThreadIn"
static long	makeKey(int instanceIn, int threadIn)
String	toString() Returns a string representation of the object.

Methods inherited from class fuego.papi.InstanceId

compare, compareTo, equals, equals, getInstanceId, getInstanceId, getInstanceIn, getInstanceIn, getLocalInstanceId, getLocalProcessId, getOrganization, getProcessId, getProcessIn, getThreadIn, getThreadIn, hashCode, isProcessId, isValidInstanceId, makeGlobalId, makeId, makeId

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

InstanceInfo

public InstanceInfo()

Method Detail

getActivity

@Deprecated
public abstract Activity getActivity()

Deprecated. use ProcessServiceSession.processGet(String)
and then call Process.getActivity(String) instead.

Return the activity for this instance

Returns:

Activity

See Also:

Activity

isActivityCompleted

public abstract boolean isActivityCompleted()

Returns whether or not the process instance has the activity completed

Returns:

true if the process instance has the activity completed

getActivityDeadline

public abstract Time getActivityDeadline()

Returns the deadline to complete the current activity

Returns:

a Time object representing the deadline to complete the current activity

getActivityId

public abstract String getActivityId()

Returns the activity identification of this instance

Returns:

the activity identification of this instance.

getActivityName

public abstract String getActivityName()

Returns the activity name of this instance

Returns:

the activity name of this instance.

getAuthor

public abstract int getAuthor()

Return the instance creator. -1 means no Participant 0 means automatic/engine participant

Returns:

participant identification

getAuthorId

public abstract String getAuthorId()

Return the instance author id.
null means no Participant, "ENGINE" means automatic/engine participant

Returns:

the instance author id.

isCompleted

public abstract boolean isCompleted()

Returns whether or not the process instance is completed

Returns:

true if the process instance is completed

getDeadline

public abstract Time getDeadline()

Returns the deadline for this instance in its current activity

Returns:

deadline for instance in current activity

getDescription

public abstract String getDescription()

Returns the instance description.

Returns:

the instance description.

isException

public abstract boolean isException()

Returns whether or not the process instance is an exception

Returns:

true if the process instance is an exception

isExecuting

public abstract boolean isExecuting()

Returns if this instance is executing or not.

Returns:

true if this instance is executing.

isGrabbed

public abstract boolean isGrabbed()

Returns whether or not the process instance is grabbed

Returns:

true if the process instance is grabbed

getId

public abstract String getId()

Return the instance identification. instanceId = "PrcessId/I nstanceIn/ThreadIn"

Returns:

instanceId

See Also:

makeId(java.lang.String,int,int)

getInternalState

public abstract int getInternalState()

getNumberOfThreads

public abstract int getNumberOfThreads()

Returns the number of threads (copies) this instance has.

Returns:

the number of threads (copies) this instance has.

getParentThreadIn

public abstract int getParentThreadIn()

Returns the parent instance thread identification number

Returns:

the parent instance thread identification number.

getParticipantId

public abstract String getParticipantId()

Returns the participant selecting this instance.

Returns:

Participant UID or null if not selected.

getParticipantIn

public abstract int getParticipantIn()

Returns the participant identification number of this instance

Returns:

Return the participant in or 0 if the instance is not selected.

isPending

public abstract boolean isPending()

Returns whether or not the process instance is pending

Returns:

true if the process instance is pending

getPendingTaskIn

public abstract int getPendingTaskIn()

Gets the pending task number of the task that must be re-run. This is only used when this instance is in an automatic activity.

Returns:

the pending task number of the task that must be run.

getPriority

public abstract int getPriority()

Returns the instance's priority

Returns:

the instance's priority

getProcess

@Deprecated
public abstract Process getProcess()

Deprecated. use ProcessServiceSession.processGet(String)
or ProcessServiceSession.processGet(int) instead

Returns the process of this instance.
WARNING: Do not invoke this method without previously initializate the ProcessService.

Returns:

the process of this instance.

getProcessDeadline

public abstract Time getProcessDeadline()

Returns the instance process deadline.

Returns:

time process deadline.

getProcessId

public abstract String getProcessId()

Rerturns the process Id of this instance.
WARNING: Do not invoke this method without previously initializate the ProcessService.

Returns:

the process Id of this instance

getReceptionTime

public abstract Time getReceptionTime()

Time when this process instance reached the current activity

Returns:

time when this process instance reached the current activity

getRoleId

public abstract String getRoleId()

Returns the role identification of this instance

Returns:

the role identification of this instance

getRoleIn

public abstract int getRoleIn()

Returns the role identification number of this instance

Returns:

the role identification number of this instance

isRunning

public abstract boolean isRunning()

Returns whether or not the process instance is running

Returns:

true if the process instance is running||activity_completed||exception

isSelected

public abstract boolean isSelected()

Returns if this instance is selected or not.

Returns:

true if this instance is selected

getStamp

@Deprecated
public abstract InstanceStamp getStamp()

Deprecated. Do not use this method. Use getInstanceActivityPair() instead.

This method creates and returns an object (InstanceStamp) which is needed in order to perform any operation with this instance. This stamp will carry the instance information, and the activity where this instance is suposed to be. This method set the stamp with with the instanceInfo current activity.

Returns:

InstanceStamp The stamp containing just the info needed by the engine.

getInstanceActivityPair

public abstract InstanceActivityPair getInstanceActivityPair()

This method creates and returns an InstanceActivityPair which is needed in order to perform any operation with this instance. This object will carry the instance information, and the activity where this instance is suposed to be.

Returns:

InstanceActivityPair The object containing the info needed by the engine to perform an execution over this instance.

getTaskCount

public abstract int getTaskCount()

This method returns the quantity of tasks for this instance.

Returns:

the quantity of tasks.

Throws:

InstanceOutOfSyncException - if the instance is out of sync with the engine. This could happen if you set the property 'Do not load tasks when a filter is executed'.

getTaskIn

public abstract int getTaskIn(int taskNumber)

Returns the task identification number for the task number.

Parameters:

taskNumber - Task Number to obtein the Task Identification Number.

Returns:

Task Identification Number

Throws:

InstanceOutOfSyncException - if the instance is out of sync with the engine. This could happen if you set the property 'Do not load tasks when a filter is executed'.

getTaskInternalStatus

public abstract int getTaskInternalStatus(int taskNumber)

Returns an integer describing the current state of this process instance item. Note, the returned value is not filtered as to get only one state at a time

Parameters:

taskNumber - Task Number to obtain the Task state..

Returns:

an int describing the current state of the process instance item

Throws:

InstanceOutOfSyncException - if the instance is out of sync with the engine. This could happen if you set the property 'Do not load tasks when a filter is executed'.

See Also:

InstanceItemState

getTaskLastExecutionParticipant

public abstract String getTaskLastExecutionParticipant(int taskNumber)

Return the last participant UID that execute the specific task.

Parameters:

taskNumber - Task Number to obtein the participant Id

Returns:

Participant UID or null if not executed

Throws:

InstanceOutOfSyncException - if the instance is out of sync with the engine. This could happen if you set the property 'Do not load tasks when a filter is executed'.

getTaskLastExecutionTime

public abstract Time getTaskLastExecutionTime(int taskNumber)

Return the last time execution of the specific task.

Parameters:

taskNumber - Task Number to obtein the Time

Returns:

Time or null if not executed

Throws:

InstanceOutOfSyncException - if the instance is out of sync with the engine. This could happen if you set the property 'Do not load tasks when a filter is executed'.

getTaskParticipantId

public abstract String getTaskParticipantId(int taskNumber)

Rerturns the participant selecting the task.

Parameters:

taskNumber - Task Number to obtein the participant Id

Returns:

Participant UID or null if not selected

Throws:

InstanceOutOfSyncException - if the instance is out of sync with the engine. This could happen if you set the property 'Do not load tasks when a filter is executed'.

getTaskRetryCounter

public abstract int getTaskRetryCounter(int taskNumber)

Returns the retryCounter for the passed task

Parameters:

taskNumber - Task number to obtain the retry counter.

Returns:

number of retries for the passed task.

Throws:

InstanceOutOfSyncException - if the instance is out of sync with the engine. This could happen if you set the property 'Do not load tasks when a filter is executed'.

isTaskRunning

public abstract boolean isTaskRunning(int taskNumber)

Returns whether or not the process instance item is being executed

Parameters:

taskNumber - Task Index.

Returns:

true if the process instance item is being executed

Throws:

InstanceOutOfSyncException - if the instance is out of sync with the engine. This could happen if you set the property 'Do not load tasks when a filter is executed'.

isTaskSelected

public abstract boolean isTaskSelected(int taskNumber)

Returns whether or not this process instance item is currently selected Note: Repeatable items can be selected even if they have already been completed

Parameters:

taskNumber - Task index.

Returns:

true if this process instance item is currently selected

Throws:

InstanceOutOfSyncException - if the instance is out of sync with the engine. This could happen if you set the property 'Do not load tasks when a filter is executed'.

getTaskStatusDescription

public abstract String getTaskStatusDescription(int taskNumber,
                                                Locale locale)

Returns the task status desciption

Parameters:

taskNumber - The task number.

locale - The locale for the description of the status.

Returns:

String The localized status. description.

Throws:

InstanceOutOfSyncException - if the instance is out of sync with the engine. This could happen if you set the property 'Do not load tasks when a filter is executed'.

isTaskValid

public abstract boolean isTaskValid(int taskNumber)

Returns if the specific task index is valid or not in this instance

Parameters:

taskNumber - Task index.

Returns:

true if the task is valid.

Throws:

InstanceOutOfSyncException - if the instance is out of sync with the engine. This could happen if you set the property 'Do not load tasks when a filter is executed'.

getTasks

public abstract Task[] getTasks()

Returns the metadata task for the task in this instace

Returns:

Task array

See Also:

Task

getVar

@Deprecated
public abstract Object getVar(String variableId,
                                         Locale locale)

Deprecated. use getVariable(String, java.util.Locale) instead

Returns the value of any variable by id for a given locale. Remember that the type of the variable is specified in the VarDefinition object, which can be obtained from the DirectoryServiceSession or the Process.

Parameters:

variableId - The id of the variable whose value is required.

locale - The locale to use for those variables which can be localized. List of localizable variables: @see VarDefinition#ACTIVITY_ID

Returns:

Object The LOCALIZED value of the variable identificated by the id argument. If the variable was not found (because it does not exists in the process) a fuego.lang.Void object will be returned.

getVariable

public abstract Object getVariable(String variableId,
                                   Locale locale)

Returns the value of any variable by id for a given locale. Remember that the type of the variable is specified in the VarDefinition object, which can be obtained from the DirectoryServiceSession or the Process.

Parameters:

variableId - The id of the variable whose value is required.

locale - The locale to use for those variables which can be localized. List of localizable variables: @see VarDefinition#ACTIVITY_ID

Returns:

Object The LOCALIZED value of the variable identificated by the id argument. If the variable was not found (because it does not exists in the process) a fuego.lang.Void object will be returned.

getExternalVariable

public abstract Object getExternalVariable(String variableId,
                                           Locale locale)
                                    throws InvalidVariableIdException

Returns the value of any external variable by id for a given locale. Remember that the type of the variable is specified in the VarDefinition object, which can be obtained from the ProcessServiceSession or the Process.

Parameters:

variableId - The id of the external variable whose value is required.

locale - The locale to use for those variables which can be localized. List of localizable variables: @see VarDefinition#ACTIVITY_ID

Returns:

Object The LOCALIZED value of the external variable identificated by the id argument.

Throws:

InvalidVariableIdException - if the external variable id not exist.

getVar

@Deprecated
public abstract Object getVar(String variableId)

Deprecated. use getVariable(String) instead

Returns the value of any variable by id. Remember that the type of the variable is specified in the VarDefinition object, which can be obtained from the ProcessServiceSession or the Process. IMPORTANT: Some variables, such as @see VarDefinition#ACTIVITY_ID, can be localized, but through this method you will get always it default value. In order to get them localized, use this method @see InstanceInfo#getVar(String, Locale)

Parameters:

variableId - The id of the variable whose value is required

Returns:

Object The NOT LOCALIZED value of the variable identificated by the id argument. If the variable was not found (because it does not exists in the process) a fuego.lang.Void object will be returned.

getVariable

public abstract Object getVariable(String variableId)

Returns the value of any variable by id. Remember that the type of the variable is specified in the VarDefinition object, which can be obtained from the ProcessServiceSession or the Process. IMPORTANT: Some variables, such as @see VarDefinition#ACTIVITY_ID, can be localized, but through this method you will get always it default value. In order to get them localized, use this method @see InstanceInfo#getVar(String, Locale)

Parameters:

variableId - The id of the variable whose value is required

Returns:

Object The NOT LOCALIZED value of the variable identificated by the id argument. If the variable was not found (because it does not exists in the process) a fuego.lang.Void object will be returned.

getExternalVariable

public abstract Object getExternalVariable(String variableId)
                                    throws InvalidVariableIdException

Returns the value of any external variable by id. Remember that the type of the variable is specified in the VarDefinition object, which can be obtained from the ProcessServiceSession or the Process. IMPORTANT: Some variables, such as @see VarDefinition#ACTIVITY_ID, can be localized, but through this method you will get always it default value. In order to get them localized, use this method @see InstanceInfo#getVar(String, Locale)

Parameters:

variableId - The id of the variable whose value is required

Returns:

Object The NOT LOCALIZED value of the external variable identificated by the id argument.

Throws:

InvalidVariableIdException - if the external variable id not exist.

getNormalVariable

public abstract Object getNormalVariable(String variableId)
                                  throws InvalidVariableIdException

Returns the value of any normal variable by id.

Parameters:

variableId - The id of the normal variable whose value is required

Returns:

Object The value of the variable identificated by the id argument.

Throws:

InvalidVariableIdException - if the normal variable id not exist.

hasPendingTasks

public abstract boolean hasPendingTasks()

This methods returns true if the process instance has mandatory items that still need to be runned.

Returns:

True if there is any pending task in this instance.

hasRepeatableTasks

public abstract boolean hasRepeatableTasks()

This methods returns true if the process instance has any repeatable item.

Returns:

boolean True if there is any repeatable item in this instance.

isAborted

public abstract boolean isAborted()

Returns whether or not the process instance is aborted

Returns:

true if the process instance is aborted

getStampForActivity

@Deprecated
public abstract InstanceStamp getStampForActivity(String activityName)

Deprecated. Use getInstanceActivityPair() instead.

This method creates and returns an object (InstanceStamp) which is needed in order to perform any operation with this instance. This stamp will carry the instance information, and the activity where this instance is suposed to be.

Parameters:

activityName - The name of the activity where this instance is suposed to be.

Returns:

InstanceStamp The stamp containing just the info needed by the engine.

getStatus

public abstract int getStatus()

Returns the instance status

Returns:

instance's status as defined by fuego.papi.ProcessInstanceState.

See Also:

ProcessInstanceState

getStatusDescription

public abstract String getStatusDescription(Locale locale)

Returns the instance status desciption

Parameters:

locale - The locale for the description of the status.

Returns:

String The localized status. description.

isSuspended

public abstract boolean isSuspended()

Returns whether or not the process instance is suspended

Returns:

true if the process instance is suspended

getTask

public abstract Task getTask(int taskNumber)

Returns the metadata task for the specific task index

Parameters:

taskNumber - Task index for obtein the metadata.

Returns:

Task

See Also:

Task

getTask

public abstract Task getTask(String taskId)

Returns the metadata task for the specific task id

Parameters:

taskId - Task identification

Returns:

Task

See Also:

Task

isTaskCompleted

public abstract boolean isTaskCompleted(int taskNumber)

Returns whether or not this process instance item is already completed

Parameters:

taskNumber - number of the task to check.

Returns:

true if the process instance item is already completed

Throws:

InstanceOutOfSyncException - if the instance is out of sync with the engine. This could happen if you set the property 'Do not load tasks when a filter is executed'.

invalidateTask

public abstract void invalidateTask(int taskNumber)

This method invalidates the specific task index

Parameters:

taskNumber - Task index in the task array

Throws:

InstanceOutOfSyncException - if the instance is out of sync with the engine. This could happen if you set the property 'Do not load tasks when a filter is executed'.

makeGlobalId

public static String makeGlobalId(String organization,
                                  String processId,
                                  int instanceIn,
                                  int threadIn)

Builds the id in the way instanceId+ORGANIZATION_SEPARATOR+organization.
If it is needed to build an instanceId, use makeId() instead.
To get the Organization use getOrganization, to obtain the instanceId alone use getInstanceId.

Parameters:

organization - the organization of the process.

processId - the process id where the instance was created.

instanceIn - the instance number.

threadIn - the thread (copy) number of the instance.

Returns:

the id which identify the instance.

See Also:

makeId(java.lang.String,int,int)

makeId

public static String makeId(String processId,
                            int instanceIn,
                            int threadIn)

Build the instance id based on the different values.
instanceId = "PrcessId/InstanceIn/ThreadIn"

Parameters:

processId - the process id where the instance was created.

instanceIn - the instance number.

threadIn - the thread (copy) number of the instance.

Returns:

the id which identify the instance.

See Also:

getId()

getStamp

@Deprecated
public static InstanceStamp getStamp(String instanceId,
                                                String activityName)

Deprecated. Use InstanceActivityPair.valueOf(String, String) instead.

This method creates and returns an object (InstanceStamp) which is needed in order to perform any operation with this instance. This stamp will carry the instance information, and the activity where this instance is suposed to be.

Parameters:

instanceId - The is of the instance that will be inside the stamp.

activityName - The name of the activity where this instance is suposed to be.

Returns:

InstanceStamp The stamp containing just the info needed by the engine.

getStamp

@Deprecated
public static InstanceStamp getStamp(String stampId)

Deprecated. Use InstanceActivityPair.valueOf(String) instead.

This method creates and returns an object (InstanceStamp) which is needed in order to perform any operation with this instance. This stamp will carry the instance information, and the activity where this instance is suposed to be.

Parameters:

stampId - The identificator of the stamp (instanceId/activityName).

Returns:

InstanceStamp The stamp containing just the info needed by the engine.

getKey

public static long getKey(String instanceId)

makeKey

public static long makeKey(int instanceIn,
                           int threadIn)

getCreationTime

public Time getCreationTime()

Instance creation time.

Returns:

creation time

isSelectedBy

public boolean isSelectedBy(String participantId)

Returns if this instance was selected by the given participant.

Parameters:

participantId - Participant Id to check.

Returns:

true is the participant has selected the instance. Package method

getKey

public long getKey()

Private method.

Returns:

key

toString

public String toString()

Returns a string representation of the object. In general, the toString method returns a string that "textually represents" this object. The result should be a concise but informative representation that is easy for a person to read.

Overrides:

toString in class InstanceId