org.omg.dds.sub

Interface DataReader.Selector<T>

Type Parameters:

T - The concrete type of the data to be read.

All Superinterfaces:

DDSObject

Enclosing interface:

DataReader<TYPE>

public static interface DataReader.Selector<T>
extends DDSObject

Selector class encapsulates different ways of selecting samples from a DataReader. Selector can be used with DataReader.read(Selector) and DataReader.take(Selector) or it can be used stand-alone as it provides read() and take() functions. DataReader.select() creates a Selector that is bound to the DataReader. A Selector may encapsulate any combination of InstanceHandle, Subscriber.DataState, a query filter. It can be used to bound the maximum number of samples retrieved.

Method Summary

Methods

Modifier and Type	Method and Description
DataReader.Selector<T>	Content(String queryExpression, List<String> queryParameters)
DataReader.Selector<T>	dataState(Subscriber.DataState state)
ReadCondition<T>	getCondition()
Subscriber.DataState	getDataState()
InstanceHandle	getInstance()
int	getMaxSamples()
String	getQueryExpression()
List<String>	getQueryParameters()
DataReader.Selector<T>	instance(InstanceHandle handle)
DataReader.Selector<T>	maxSamples(int max)
DataReader.Selector<T>	nextInstance(boolean retrieveNextInstance)
Sample.Iterator<T>	read()
List<Sample<T>>	read(List<Sample<T>> samples)
boolean	retrieveNextInstance()
Sample.Iterator<T>	take()
List<Sample<T>>	take(List<Sample<T>> samples)

Methods inherited from interface org.omg.dds.core.DDSObject

getEnvironment

Method Detail

instance

DataReader.Selector<T> instance(InstanceHandle handle)

nextInstance

DataReader.Selector<T> nextInstance(boolean retrieveNextInstance)

dataState

DataReader.Selector<T> dataState(Subscriber.DataState state)

Content

DataReader.Selector<T> Content(String queryExpression,
                             List<String> queryParameters)

maxSamples

DataReader.Selector<T> maxSamples(int max)

getInstance

InstanceHandle getInstance()

retrieveNextInstance

boolean retrieveNextInstance()

getDataState

Subscriber.DataState getDataState()

getQueryExpression

String getQueryExpression()

getQueryParameters

List<String> getQueryParameters()

getMaxSamples

int getMaxSamples()

getCondition

ReadCondition<T> getCondition()

read

Sample.Iterator<T> read()

read

List<Sample<T>> read(List<Sample<T>> samples)

take

Sample.Iterator<T> take()

take

List<Sample<T>> take(List<Sample<T>> samples)