net.logstash.logback.pattern

Interface NodeWriter<Event>

Type Parameters:

Event - - type of the event (ILoggingEvent, IAccessEvent)

All Known Subinterfaces:

AbstractJsonPatternParser.FieldWriter<Event>

All Known Implementing Classes:

AbstractJsonPatternParser.ChildrenWriter, AbstractJsonPatternParser.ComputableObjectFieldWriter, AbstractJsonPatternParser.ComputableValueWriter, AbstractJsonPatternParser.ConstantValueWriter, AbstractJsonPatternParser.DelegatingObjectFieldWriter, AbstractJsonPatternParser.ListWriter, AbstractJsonPatternParser.ObjectWriter

public interface NodeWriter<Event>

Writes a JSON pattern node into JSON generator supplied.

Author:

Dmitry Andrianov

Method Summary

Modifier and Type	Method and Description
boolean	shouldWrite(com.fasterxml.jackson.core.JsonGenerator generator, Event event) Returns true if this node should be written.
void	write(com.fasterxml.jackson.core.JsonGenerator generator, Event event) Writes this node to the given generator

Method Detail

write

void write(com.fasterxml.jackson.core.JsonGenerator generator,
           Event event)
    throws IOException

Writes this node to the given generator

Parameters:

generator - the generator to which to write the node

event - the event from which to get data to write

Throws:

IOException

shouldWrite

boolean shouldWrite(com.fasterxml.jackson.core.JsonGenerator generator,
                    Event event)

Returns true if this node should be written. If this returns true, then write(JsonGenerator, Object) should not be called. This is used to potentially omit fields containing this node (e.g. for omitting empty values)

Parameters:

generator -

event -

Returns:

true if this node should be written.