Class AlarmEventPropertyExpression
- java.lang.Object
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- com.inductiveautomation.factorypmi.application.components.alarm.AlarmEventPropertyExpression
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- All Implemented Interfaces:
Expression
public class AlarmEventPropertyExpression extends java.lang.Object implements Expression
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Constructor Summary
Constructors Constructor Description AlarmEventPropertyExpression(Property<?> property, AlarmEventParseContext.SelectedAlarmEventModel model)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
connect(CommonContext context, InteractionListener updateListener)
Gives the expression a chance to connect itself to things, if necessary.void
disconnect()
Tells the expression to disconnect from anything it was connected to.QualifiedValue
execute()
Compute and return the value of this expressionExpression[]
getChildren()
The children (if any) that this expression is dependent on for its executionjava.lang.String
getOpName()
Return a human-readable name for the operation that this expression performsjava.lang.Class<?>
getType()
Return the type that this expression will returnvoid
shutdown()
Tells the expression to shutdown any polling operations.void
startup()
Tells the expression to startup any polling operations.
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Constructor Detail
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AlarmEventPropertyExpression
public AlarmEventPropertyExpression(Property<?> property, AlarmEventParseContext.SelectedAlarmEventModel model)
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Method Detail
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execute
@Nonnull public QualifiedValue execute() throws ExpressionException
Description copied from interface:Expression
Compute and return the value of this expression- Specified by:
execute
in interfaceExpression
- Throws:
ExpressionException
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getType
public java.lang.Class<?> getType()
Description copied from interface:Expression
Return the type that this expression will return- Specified by:
getType
in interfaceExpression
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getOpName
public java.lang.String getOpName()
Description copied from interface:Expression
Return a human-readable name for the operation that this expression performs- Specified by:
getOpName
in interfaceExpression
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getChildren
public Expression[] getChildren()
Description copied from interface:Expression
The children (if any) that this expression is dependent on for its execution- Specified by:
getChildren
in interfaceExpression
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connect
public void connect(CommonContext context, InteractionListener updateListener)
Description copied from interface:Expression
Gives the expression a chance to connect itself to things, if necessary. Most expressions do not have any connections. An expression should notify the updateListener if they change.- Specified by:
connect
in interfaceExpression
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disconnect
public void disconnect()
Description copied from interface:Expression
Tells the expression to disconnect from anything it was connected to.- Specified by:
disconnect
in interfaceExpression
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startup
public void startup()
Description copied from interface:Expression
Tells the expression to startup any polling operations. Expressions that use this can remember the updateListener from connect() to feed update notification to.- Specified by:
startup
in interfaceExpression
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shutdown
public void shutdown()
Description copied from interface:Expression
Tells the expression to shutdown any polling operations.- Specified by:
shutdown
in interfaceExpression
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