Package org.infinispan.protostream

Class MessageContext<E extends MessageContext<E>>

java.lang.Object

org.infinispan.protostream.MessageContext<E>

Direct Known Subclasses:

ProtoStreamReaderImpl.ReadMessageContext, ProtoStreamWriterImpl.WriteMessageContext

public class MessageContext<E extends MessageContext<E>>
extends Object

A nested message processing context.

Since:

1.0

Field Summary

Fields

Modifier and Type	Field	Description
private final FieldDescriptor	fieldDescriptor	If this is a nested context this is the outer field being processed.
private String	fieldPath	Dot separated path of the field.
private int	maxSeenFieldNumber
private final Descriptor	messageDescriptor	The descriptor of the current message.
private final E	parentContext	The context of the outer message or null if this is a top level message.
private final BitSet	seenFields

Constructor Summary

Constructors

Constructor	Description
MessageContext(E parentContext, FieldDescriptor fieldDescriptor, Descriptor messageDescriptor)

Method Summary

Modifier and Type	Method	Description
FieldDescriptor	getField()	Gets the nested field.
FieldDescriptor	getFieldByName(String fieldName)
String	getFieldPath()	Gets the full path of the nested field.
int	getMaxSeenFieldNumber()
Descriptor	getMessageDescriptor()
E	getParentContext()
boolean	isFieldMarked(int fieldNumber)
boolean	markField(int fieldNumber)	Mark a field as seen.

Methods inherited from class java.lang.Object

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

Field Details

parentContext

private final E extends MessageContext<E> parentContext

The context of the outer message or null if this is a top level message.

fieldDescriptor

private final FieldDescriptor fieldDescriptor

If this is a nested context this is the outer field being processed. This is null for the root context.

fieldPath

private String fieldPath

Dot separated path of the field.

messageDescriptor

private final Descriptor messageDescriptor

The descriptor of the current message.

seenFields

private final BitSet seenFields

maxSeenFieldNumber

private int maxSeenFieldNumber

Constructor Details

MessageContext

public MessageContext(E parentContext,
 FieldDescriptor fieldDescriptor,
 Descriptor messageDescriptor)

Method Details

getParentContext

public E getParentContext()

getField

public FieldDescriptor getField()

Gets the nested field.

Returns:

the descriptor of the nested field or null if this is the root context

getFieldPath

public String getFieldPath()

Gets the full path of the nested field.

Returns:

the full path of the nested field or null if this is the root context

getMessageDescriptor

public Descriptor getMessageDescriptor()

getFieldByName

public FieldDescriptor getFieldByName(String fieldName)
                               throws IOException

Throws:

IOException

isFieldMarked

public boolean isFieldMarked(int fieldNumber)

markField

public boolean markField(int fieldNumber)

Mark a field as seen.

Parameters:

fieldNumber - the field number

Returns:

true if it was added, false if it was already there

getMaxSeenFieldNumber

public int getMaxSeenFieldNumber()