com.aquenos.epics.jackie.common.value

Interface ChannelAccessAlarmLong

All Superinterfaces:

ChannelAccessAlarmValue<java.lang.Integer>, ChannelAccessGettableValue<java.lang.Integer>, ChannelAccessLong, ChannelAccessValue<java.lang.Integer>, java.lang.Cloneable, java.lang.Iterable<java.lang.Integer>

All Known Subinterfaces:

ChannelAccessAlarmOnlyLong, ChannelAccessControlsLong, ChannelAccessGraphicsLong, ChannelAccessGraphicsOnlyLong, ChannelAccessTimeLong

public interface ChannelAccessAlarmLong
extends ChannelAccessLong, ChannelAccessAlarmValue<java.lang.Integer>

Channel Access value that stores integer numbers and provides information about the alarm status. For historical reasons, this type is called long in the Channel Access protocol. However, it is represented by ints.

This interface should not be implemented by user-defined classes. Code that wants to create an instance implementing this interface should use the methods provided by ChannelAccessValueFactory instead.

Author:

Sebatian Marsching

Method Summary

Modifier and Type	Method and Description
ChannelAccessAlarmLong	asReadOnlyValue() Returns a read-only version of this value.
ChannelAccessAlarmLong	clone() Creates and returns a copy of this object.

Methods inherited from interface com.aquenos.epics.jackie.common.value.ChannelAccessLong

getValue, setValue

Methods inherited from interface com.aquenos.epics.jackie.common.value.ChannelAccessAlarmValue

getAlarmSeverity, getAlarmStatus, setAlarmSeverity, setAlarmStatus

Methods inherited from interface com.aquenos.epics.jackie.common.value.ChannelAccessValue

equals, getGenericValueElement, getType, getValueSize, hashCode, isReadOnly, iterator, toString

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Method Detail

asReadOnlyValue

ChannelAccessAlarmLong asReadOnlyValue()

Returns a read-only version of this value. If the value is read-only, this value is returned. Otherwise, a wrapped version of this value, that does not allow modifications is returned.

Please note that the read-only value is not a copy of this value, but just a wrapper around it. This means, that modifications of the wrapped value will result in modifications of the read-only value. Therefore it is bad practice to modify a value that has been used as the base for a read-only value, because code that still has a reference to the read-only value might not expect this change and thus fail unexpectedly.

Specified by:

asReadOnlyValue in interface ChannelAccessAlarmValue<java.lang.Integer>

Specified by:

asReadOnlyValue in interface ChannelAccessGettableValue<java.lang.Integer>

Specified by:

asReadOnlyValue in interface ChannelAccessLong

Specified by:

asReadOnlyValue in interface ChannelAccessValue<java.lang.Integer>

Returns:

read-only version of this value (never null).

clone

ChannelAccessAlarmLong clone()

Creates and returns a copy of this object. The object returned is completely independent from this object. This means that modifications to this object will not affect the returned object and vice-versa.

The object returned is guaranteed to be completely identical to this object, including its type. This means that x.clone().equals(x) and x.clone().getClass() == x.getClass() are always true.

The returned value is guaranteed to allow write access, even if this value is read-only. This means that cloning a read-only value is a good way to get a writable copy.

Specified by:

clone in interface ChannelAccessAlarmValue<java.lang.Integer>

Specified by:

clone in interface ChannelAccessGettableValue<java.lang.Integer>

Specified by:

clone in interface ChannelAccessLong

Specified by:

clone in interface ChannelAccessValue<java.lang.Integer>

Returns:

a clone of this instance.