Package org.bsc.langgraph4j

Class GraphRunnerException

java.lang.Object

java.lang.Throwable

java.lang.Exception

org.bsc.langgraph4j.GraphRunnerException

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

GraphInterruptException

public class GraphRunnerException
extends Exception

Exception thrown when there is an error during the execution of a graph runner.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
GraphRunnerException(RunnableConfig config, String errorMessage)
GraphRunnerException(RunnableConfig config, Throwable cause)

Method Summary

Modifier and Type	Method	Description
RunnableConfig	config()
Optional<String>	nodeId()	Returns the identifier of the node that was being executed when the error occurred.
static <T extends GraphRunnerException> Optional<T>	of(Throwable throwable)

Methods inherited from class java.lang.Throwable

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

Methods inherited from class java.lang.Object

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

Constructor Details

GraphRunnerException

public GraphRunnerException(RunnableConfig config,
 String errorMessage)

GraphRunnerException

public GraphRunnerException(RunnableConfig config,
 Throwable cause)

Method Details

of

public static <T extends GraphRunnerException>
Optional<T> of(Throwable throwable)

config

public RunnableConfig config()

nodeId

public Optional<String> nodeId()

Returns the identifier of the node that was being executed when the error occurred.

The value is resolved from the RunnableConfig carried by this exception (metadata key RunnableConfig.NODE_ID). Unlike RunnableConfig.nodeId(), which throws when no node id is present, this accessor returns an empty Optional when the failure happens outside the scope of a specific node (for example, during entry-point resolution), so it is safe to call while handling a failure.

Returns:

an Optional containing the failing node id, or empty if it cannot be determined

Since:

1.9.0