Package com.gluonhq.connect.provider

Class InputStreamListDataReader<E>

java.lang.Object

com.gluonhq.connect.provider.InputStreamListDataReader<E>

Type Parameters:

E - the type of the objects contained in the list to read

All Implemented Interfaces:

ListDataReader<E>

public class InputStreamListDataReader<E>
extends java.lang.Object
implements ListDataReader<E>

A helper class that represents a ListDataReader that reads objects by reading from a specific InputDataSource and converts the read data with a specific InputStreamIterableInputConverter.

Constructor Summary

Constructors

Constructor	Description
InputStreamListDataReader(InputDataSource dataSource, InputStreamIterableInputConverter<E> converter)	Construct an instance that will use the specified data source to read data from and convert it to a list of objects with the specified converter.

Method Summary

Modifier and Type	Method	Description
java.util.Iterator<E>	iterator()	Returns an iterator that is able to iterate over the read objects from the list.
GluonObservableList<E>	newGluonObservableList()	Provide an instance of a GluonObservableList.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

InputStreamListDataReader

public InputStreamListDataReader(InputDataSource dataSource,
                                 InputStreamIterableInputConverter<E> converter)

Construct an instance that will use the specified data source to read data from and convert it to a list of objects with the specified converter. The InputStream of the InputDataSource will be set on the Converter before calling its iterator method.

Parameters:

dataSource - the data source where the data will be read from

converter - the converter that is used for converting the data into a list of object

Method Detail

newGluonObservableList

public GluonObservableList<E> newGluonObservableList()

Description copied from interface: ListDataReader

Provide an instance of a GluonObservableList. This method will be called by DataProvider.retrieveList(ListDataReader) to get a GluonObservableList that can be populated. Most implementations will just return an instance of GluonObservableList itself. Note that it is perfectly valid to return existing instances of GluonObservableList.

Specified by:

newGluonObservableList in interface ListDataReader<E>

Returns:

an instance of GluonObservableList

iterator

public java.util.Iterator<E> iterator()
                               throws java.io.IOException

Returns an iterator that is able to iterate over the read objects from the list. This implementation uses the specified converter to convert the data that is read from the specified data source into a list of objects. The InputStream of the specified data source will be set on the converter, before calling the iterator method on the converter.

Specified by:

iterator in interface ListDataReader<E>

Returns:

an iterator that is able to read over the objects from the list

Throws:

java.io.IOException - when something went wrong during the process of reading the objects