com.pervasive.datarush.graphs

Class DROperatorException

java.lang.Object

java.lang.Throwable

java.lang.Exception

java.lang.RuntimeException

com.pervasive.datarush.DRException

com.pervasive.datarush.graphs.DROperatorException

All Implemented Interfaces:

Serializable

public class DROperatorException
extends DRException

Wrapper for errors occurring during the execution of a dataflow graph. Each error is recorded along with the path to the dataflow process which threw it.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
DROperatorException(GraphPath path, Throwable cause) Creates a wrapper for the specified error associated with the given node.
DROperatorException(String name) Constructs an execution exception for a dataflow.

Method Summary

Modifier and Type	Method and Description
void	add(String instanceName, Throwable cause) Add a cause exception from the specified instance.
Map<String,Throwable>	getCauseMap() Get a java.util.Map of cause exceptions, keyed by name.
Map<String,List<Throwable>>	getCausesMap() Get a java.util.Map of cause exceptions, keyed by name.
List<String>	getPathList() Get a java.util.List of the names where an exception occurred, in the order in which the exceptions were added to this composite exception.
void	merge(DROperatorException ex) Combine another composite exception with this one.
void	printStackTrace() Prints this exception's stack trace, and the stack trace of all the causing exceptions, to the standard error stream.
void	printStackTrace(PrintStream printStream) Prints this exception's stack trace, and the stack trace of all the causing exceptions, to the specified PrintStream.
void	printStackTrace(PrintWriter printWriter) Prints this exception's stack trace, and the stack trace of all the causing exceptions, to the specified PrintWriter.
String	toString() Prints this exception's stack trace and cause map.

Methods inherited from class java.lang.Throwable

addSuppressed, fillInStackTrace, getCause, getLocalizedMessage, getMessage, getStackTrace, getSuppressed, initCause, setStackTrace

Methods inherited from class java.lang.Object

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

Constructor Detail

DROperatorException

public DROperatorException(GraphPath path,
                           Throwable cause)

Creates a wrapper for the specified error associated with the given node.

Parameters:

path - the unique path identifying the node in the composed graph

cause - the error which occurred

DROperatorException

public DROperatorException(String name)

Constructs an execution exception for a dataflow.

Parameters:

name - Name of the source of the exception

Method Detail

add

public void add(String instanceName,
                Throwable cause)

Add a cause exception from the specified instance.

Parameters:

instanceName - Name of the instances where the exception occurred

cause - Exception causing this composite exception

merge

public void merge(DROperatorException ex)

Combine another composite exception with this one. All exceptions in the source exception will be added to this one.

Parameters:

ex - Composite exception to merge

getCauseMap

public Map<String,Throwable> getCauseMap()

Get a java.util.Map of cause exceptions, keyed by name. Note that this map contains the first exception for each path. If the full list of exceptions is desired, use getCausesMap().

Returns:

Map of all exceptions causing this composite exception

getCausesMap

public Map<String,List<Throwable>> getCausesMap()

Get a java.util.Map of cause exceptions, keyed by name.

Returns:

Map of all exceptions causing this composite exception

getPathList

public List<String> getPathList()

Get a java.util.List of the names where an exception occurred, in the order in which the exceptions were added to this composite exception.

Returns:

List of the names where an exception occurred

See Also:

add(String, Throwable)

printStackTrace

public void printStackTrace()

Prints this exception's stack trace, and the stack trace of all the causing exceptions, to the standard error stream.

Overrides:

printStackTrace in class Throwable

printStackTrace

public void printStackTrace(PrintStream printStream)

Prints this exception's stack trace, and the stack trace of all the causing exceptions, to the specified PrintStream.

Overrides:

printStackTrace in class Throwable

printStackTrace

public void printStackTrace(PrintWriter printWriter)

Prints this exception's stack trace, and the stack trace of all the causing exceptions, to the specified PrintWriter.

Overrides:

printStackTrace in class Throwable

toString

public String toString()

Prints this exception's stack trace and cause map.

Overrides:

toString in class Throwable