com.pervasive.datarush.encoding.binary

Class AbstractTokenEncoder

java.lang.Object

com.pervasive.datarush.encoding.binary.AbstractTokenEncoder

All Implemented Interfaces:

TokenEncoder

Direct Known Subclasses:

AbstractScalarEncoder

public abstract class AbstractTokenEncoder
extends Object
implements TokenEncoder

Base class for TokenEncoders.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractTokenEncoder() Initializes a new encoder.

Method Summary

Modifier and Type	Method and Description
protected abstract void	doSourceUpdated(TokenValued source) Sets the source buffer for encoding.
void	encodeField(BinaryBuilder buffer, int index) This implementation delegates to TokenEncoder.encode(BinaryBuilder).
protected TokenValued	getSource() Returns the current source held by this encoder.
void	setSource(TokenValued source) This implementation sets the source variable and invokes the method doSourceUpdated(TokenValued).

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.pervasive.datarush.encoding.TokenEncoder

encode

Constructor Detail

AbstractTokenEncoder

protected AbstractTokenEncoder()

Initializes a new encoder.

Method Detail

setSource

public final void setSource(TokenValued source)

This implementation sets the source variable and invokes the method doSourceUpdated(TokenValued).

Specified by:

setSource in interface TokenEncoder

Parameters:

source - the value container to encode

encodeField

public void encodeField(BinaryBuilder buffer,
                        int index)

This implementation delegates to TokenEncoder.encode(BinaryBuilder). Implementations that require field-specific handling should override this method instead.

Specified by:

encodeField in interface TokenEncoder

Parameters:

buffer - the buffer to which to append the encoding

index - the index of the field to encode

getSource

protected final TokenValued getSource()

Returns the current source held by this encoder.

Returns:

the current source held by this encoder.

doSourceUpdated

protected abstract void doSourceUpdated(TokenValued source)

Sets the source buffer for encoding. Invoked when the source is initially set or updated.

Parameters:

source - the buffer from which values to encode are read