com.gluonhq.connect.provider

Class InputStreamObjectDataReader<T>

java.lang.Object

com.gluonhq.connect.provider.InputStreamObjectDataReader<T>

Type Parameters:

T - the type of the object to read

All Implemented Interfaces:

ObjectDataReader<T>

public class InputStreamObjectDataReader<T>
extends java.lang.Object
implements ObjectDataReader<T>

A helper class that represents an ObjectDataReader that reads an object by reading from a specific InputDataSource and converting the read data with a specific InputStreamInputConverter.

Constructor Summary

Constructors

Constructor and Description
InputStreamObjectDataReader(InputDataSource dataSource, InputStreamInputConverter<T> converter) Construct an instance that will use the specified data source to read data from and convert it to an object with the specified converter.

Method Summary

Modifier and Type	Method and Description
GluonObservableObject<T>	newGluonObservableObject() Provide an instance of a GluonObservableObject.
T	readObject() Reads the object from the specified data source.

Methods inherited from class java.lang.Object

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

Constructor Detail

InputStreamObjectDataReader

public InputStreamObjectDataReader(InputDataSource dataSource,
                                   InputStreamInputConverter<T> converter)

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

Parameters:

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

converter - the converter that is used for converting the data into an object

Method Detail

newGluonObservableObject

public GluonObservableObject<T> newGluonObservableObject()

Description copied from interface: ObjectDataReader

Provide an instance of a GluonObservableObject. This method is called by DataProvider.retrieveObject(ObjectDataReader) to get a GluonObservableObject that will contain the actual object when the retrieve operation has completed successfully. Most implementations will just return an instance of GluonObservableObject itself. Note that it is perfectly valid to return existing instances of GluonObservableObject.

Specified by:

newGluonObservableObject in interface ObjectDataReader<T>

Returns:

an instance of a GluonObservableObject

readObject

public T readObject()
             throws java.io.IOException

Reads the object from the specified data source. This implementation uses the specified converter to convert the data that is read from the specified data source into an object. The InputStream of the specified data source will be set on the converter, before calling the read method on the converter.

Specified by:

readObject in interface ObjectDataReader<T>

Returns:

the read object

Throws:

java.io.IOException - when an exception occurred during the read process