org.apache.reef.tang.exceptions

Class InjectionException

java.lang.Object

java.lang.Throwable

java.lang.Exception

org.apache.reef.tang.exceptions.InjectionException

All Implemented Interfaces:

Serializable

public class InjectionException
extends Exception

Thrown when an injection fails. Injections commonly fail for two reasons. The first is that the InjectionPlan that Tang produced is ambiguous or infeasible. The second is that a constructor invoked by Tang itself threw an exception.

A third, less common issue arises when constructors obtain a handle to the Tang Injector that created them, and then attempt to modify its state. Doing so is illegal, and results in a runtime exception that Tang converts into an InjectionException. Code involved in such exceptions is typically attempting to perform cyclic object injections, and should use an InjectionFuture instead.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
InjectionException(String msg)
InjectionException(String msg, Throwable cause)

Method Summary

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

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

InjectionException

public InjectionException(String msg,
                  Throwable cause)

InjectionException

public InjectionException(String msg)