org.epics.pvmanager.expression

Interface WriteExpression<W>

Type Parameters:

W - the write payload

All Superinterfaces:

WriteExpressionList<W>

All Known Subinterfaces:

DesiredRateReadWriteExpression<R,W>, SourceRateReadWriteExpression<R,W>

All Known Implementing Classes:

ChannelExpression, DesiredRateReadWriteExpressionImpl, ReadWriteMap, SourceRateReadWriteExpressionImpl, WriteExpressionImpl, WriteMap

public interface WriteExpression<W>
extends WriteExpressionList<W>

An expression to write.

Don't implement objects with this interface, use WriteExpressionImpl.

Author:

carcassi

Method Summary

Methods

Modifier and Type	Method and Description
void	fillWriteRecipe(PVWriterDirector director, WriteRecipeBuilder builder) Prepares the recipe to connect the channels needed by this expression.
String	getName() Name of this expression.
WriteExpressionImpl<W>	getWriteExpressionImpl() The implementation of this expression.
WriteFunction<W>	getWriteFunction() The function that implements this expression.

Methods inherited from interface org.epics.pvmanager.expression.WriteExpressionList

and, getWriteExpressions

Method Detail

getName

String getName()

Name of this expression.

Returns:

the expression name

getWriteFunction

WriteFunction<W> getWriteFunction()

The function that implements this expression.

Returns:

the expression function

fillWriteRecipe

void fillWriteRecipe(PVWriterDirector director,
                   WriteRecipeBuilder builder)

Prepares the recipe to connect the channels needed by this expression.

A dynamic expression, one for which the child expressions can change, can keep a reference to the director to connect/disconnect new child expressions.

Parameters:

director - the director for the reader

builder - the recipe to fill

getWriteExpressionImpl

WriteExpressionImpl<W> getWriteExpressionImpl()

The implementation of this expression.

Returns:

the implementation