org.apache.juneau.http.exception

Class PreconditionRequired

java.lang.Object

java.lang.Throwable

java.lang.Exception

java.lang.RuntimeException

org.apache.juneau.http.exception.HttpException

org.apache.juneau.http.exception.PreconditionRequired

All Implemented Interfaces:

Serializable

@Response(code=428,
          description="Precondition Required")
public class PreconditionRequired
extends HttpException

Exception representing an HTTP 428 (Precondition Required).

The origin server requires the request to be conditional.
Intended to prevent the 'lost update' problem, where a client GETs a resource's state, modifies it, and PUTs it back to the server, when meanwhile a third party has modified the state on the server, leading to a conflict.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static int	CODE HTTP status code
static String	MESSAGE Default message

Constructor Summary

Constructors

Constructor and Description
PreconditionRequired() Constructor.
PreconditionRequired(String msg) Constructor.
PreconditionRequired(String msg, Object... args) Constructor.
PreconditionRequired(Throwable cause) Constructor.
PreconditionRequired(Throwable cause, String msg, Object... args) Constructor.

Method Summary

Methods inherited from class org.apache.juneau.http.exception.HttpException

getFullStackMessage, getRootCause, getStatus, hashCode, setStatus, toString

Methods inherited from class java.lang.Throwable

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

Methods inherited from class java.lang.Object

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

Field Detail

CODE

public static final int CODE

HTTP status code

See Also:

Constant Field Values

MESSAGE

public static final String MESSAGE

Default message

See Also:

Constant Field Values

Constructor Detail

PreconditionRequired

public PreconditionRequired(Throwable cause,
                            String msg,
                            Object... args)

Constructor.

Parameters:

cause - The cause. Can be null.

msg - The message. Can be null.

args - Optional MessageFormat-style arguments in the message.

PreconditionRequired

public PreconditionRequired(String msg)

Constructor.

Parameters:

msg - The message. Can be null.

PreconditionRequired

public PreconditionRequired()

Constructor.

PreconditionRequired

public PreconditionRequired(String msg,
                            Object... args)

Constructor.

Parameters:

msg - The message. Can be null.

args - Optional MessageFormat-style arguments in the message.

PreconditionRequired

public PreconditionRequired(Throwable cause)

Constructor.

Parameters:

cause - The cause. Can be null.