org.lsst.ccs.framework

Enum SignalLevel

java.lang.Object

java.lang.Enum<SignalLevel>

org.lsst.ccs.framework.SignalLevel

All Implemented Interfaces:

Serializable, Comparable<SignalLevel>

public enum SignalLevel
extends Enum<SignalLevel>

A list of signals that can be sent to "SignalHandler" components.

Author:

bamade

Enum Constant Summary

Enum Constants

Enum Constant and Description
HALT halts the hardware.
INTERRUPT1 weak interruption.
INTERRUPT2 stronger interruption.
RE_START normally sent to a hardware that has been stopped.
STOP request to stop the hardware, not urgent but may be linked to a delay

Method Summary

Modifier and Type	Method and Description
static SignalLevel	valueOf(String name) Returns the enum constant of this type with the specified name.
static SignalLevel[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

RE_START

public static final SignalLevel RE_START

normally sent to a hardware that has been stopped. but should be idempotent (no effect on a running hardware)

STOP

public static final SignalLevel STOP

request to stop the hardware, not urgent but may be linked to a delay

INTERRUPT1

public static final SignalLevel INTERRUPT1

weak interruption. semantics specific to each hardware.

INTERRUPT2

public static final SignalLevel INTERRUPT2

stronger interruption. semantics specific to each hardware.

HALT

public static final SignalLevel HALT

halts the hardware. Should be idempotent (no action if hardware is stopped)

Method Detail

values

public static SignalLevel[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (SignalLevel c : SignalLevel.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static SignalLevel valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null