Encoder.hh File Reference

Low level support for encoding avro values. More...

#include "Config.hh"
#include <stdint.h>
#include <string>
#include <vector>
#include <memory>
#include "ValidSchema.hh"
#include "Stream.hh"

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Classes
class	avro::Encoder
	The abstract base class for all Avro encoders. More...

Namespaces
	avro
	A bunch of templates and specializations for encoding and decoding specific types.

Typedefs
typedef std::shared_ptr< Encoder >	avro::EncoderPtr
	Shared pointer to Encoder.

Functions
AVRO_DECL EncoderPtr	avro::binaryEncoder ()
	Returns an encoder that can encode binary Avro standard.
AVRO_DECL EncoderPtr	avro::validatingEncoder (const ValidSchema &schema, const EncoderPtr &base)
	Returns an encoder that validates sequence of calls to an underlying Encoder against the given schema.
AVRO_DECL EncoderPtr	avro::jsonEncoder (const ValidSchema &schema)
	Returns an encoder that encodes Avro standard for JSON.
AVRO_DECL EncoderPtr	avro::jsonPrettyEncoder (const ValidSchema &schema)
	Returns an encoder that encodes Avro standard for pretty printed JSON.

Detailed Description

Low level support for encoding avro values.

This class has two types of funtions. One type of functions support the writing of leaf values (for example, encodeLong and encodeString). These functions have analogs in Decoder.

The other type of functions support the writing of maps and arrays. These functions are arrayStart, startItem, and arrayEnd (and similar functions for maps). Some implementations of Encoder handle the buffering required to break large maps and arrays into blocks, which is necessary for applications that want to do streaming.