org.jsefa.rbf

Class RbfDeserializerImpl

java.lang.Object

org.jsefa.rbf.RbfDeserializerImpl

All Implemented Interfaces:

Deserializer, RbfDeserializer

Direct Known Subclasses:

CsvDeserializerImpl, FlrDeserializerImpl

public abstract class RbfDeserializerImpl
extends Object
implements RbfDeserializer

Abstract implementation of RbfDeserializer for RBF types.

Author:

Norman Lahme-Huetig

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	RbfDeserializerImpl(RbfConfiguration<?> config, Map<String,RbfEntryPoint> entryPointsByPrefixes) Constructs a new AbstractRbfDeserializer.
protected	RbfDeserializerImpl(RbfConfiguration<?> config, RbfEntryPoint entryPoint) Constructs a new AbstractRbfDeserializer.

Method Summary

Methods

Modifier and Type	Method and Description
void	close(boolean closeReader) Closes the deserialization stream.
InputPosition	getInputPosition() Returns information about the current position within the input stream.
protected abstract RbfLowLevelDeserializer	getLowLevelDeserializer() Returns the low level deserializer.
List<Line>	getStoredLines() Returns a list of lines stored during deserialization.
boolean	hasNext() Returns true if another object can be deserialized from the stream.
<T> T	next() Deserializes an object from the stream.
void	open(Reader reader) Opens a new deserialization stream based on the given reader.
protected abstract String	readPrefix() Reads the prefix of the current record from the stream.
protected abstract Object	readSimpleValue(SimpleTypeMapping<?> typeMapping) Reads a simple value from the stream using the given type mapping.

Methods inherited from class java.lang.Object

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

Constructor Detail

RbfDeserializerImpl

protected RbfDeserializerImpl(RbfConfiguration<?> config,
                   Map<String,RbfEntryPoint> entryPointsByPrefixes)

Constructs a new AbstractRbfDeserializer.

Parameters:

config - the configuration

entryPointsByPrefixes - a map which maps prefixes to entry points

RbfDeserializerImpl

protected RbfDeserializerImpl(RbfConfiguration<?> config,
                   RbfEntryPoint entryPoint)

Constructs a new AbstractRbfDeserializer.

Parameters:

config - the configuration

entryPoint - the entry point

Method Detail

open

public final void open(Reader reader)

Opens a new deserialization stream based on the given reader.

Specified by:

open in interface Deserializer

Parameters:

reader - the reader to base the stream on.

hasNext

public final boolean hasNext()

Returns true if another object can be deserialized from the stream.

Specified by:

hasNext in interface Deserializer

Returns:

true, if another object can be deserialized from the stream, otherwise false.

next

public final <T> T next()

Deserializes an object from the stream.

Specified by:

next in interface Deserializer

Type Parameters:

T - the expected type of the object

Returns:

the deserialized object.

close

public final void close(boolean closeReader)

Closes the deserialization stream. The underlying reader will be closed only if closeReader is true.

Specified by:

close in interface Deserializer

Parameters:

closeReader - if true, the underlying reader will be closed, too.

getInputPosition

public final InputPosition getInputPosition()

Returns information about the current position within the input stream.

Specified by:

getInputPosition in interface Deserializer

Returns:

the input position or null if no position information is available

getStoredLines

public List<Line> getStoredLines()

Returns a list of lines stored during deserialization.

Specified by:

getStoredLines in interface RbfDeserializer

Returns:

a list of lines

See Also:

LineFilter

readSimpleValue

protected abstract Object readSimpleValue(SimpleTypeMapping<?> typeMapping)

Reads a simple value from the stream using the given type mapping.

Parameters:

typeMapping - the type mapping

Returns:

a simple value

readPrefix

protected abstract String readPrefix()

Reads the prefix of the current record from the stream.

Returns:

a prefix

getLowLevelDeserializer

protected abstract RbfLowLevelDeserializer getLowLevelDeserializer()

Returns the low level deserializer.

Returns:

the low level deserializer.