Package org.apache.pulsar.client.impl.schema

Class AbstractSchema<T>

java.lang.Object

org.apache.pulsar.client.impl.schema.AbstractSchema<T>

All Implemented Interfaces:

Cloneable, Schema<T>

Direct Known Subclasses:

AbstractStructSchema, BooleanSchema, ByteBufferSchema, ByteBufSchema, ByteSchema, BytesSchema, DateSchema, DoubleSchema, FloatSchema, InstantSchema, IntSchema, KeyValueSchemaImpl, LocalDateSchema, LocalDateTimeSchema, LocalTimeSchema, LongSchema, ShortSchema, StringSchema, TimeSchema, TimestampSchema

public abstract class AbstractSchema<T>
extends Object
implements Schema<T>

Field Summary

Fields inherited from interface org.apache.pulsar.client.api.Schema

BOOL, BYTEBUFFER, BYTES, DATE, DOUBLE, FLOAT, INSTANT, INT16, INT32, INT64, INT8, LOCAL_DATE, LOCAL_DATE_TIME, LOCAL_TIME, STRING, TIME, TIMESTAMP

Constructor Summary

Constructors

Constructor	Description
AbstractSchema()

Method Summary

Modifier and Type	Method	Description
Schema<?>	atSchemaVersion(byte[] schemaVersion)	Return an instance of this schema at the given version.
Schema<T>	clone()
abstract T	decode(io.netty.buffer.ByteBuf byteBuf)	Decode a byteBuf into an object using the schema definition and deserializer implementation
T	decode(io.netty.buffer.ByteBuf byteBuf, byte[] schemaVersion)	Decode a byteBuf into an object using a given version.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.pulsar.client.api.Schema

configureSchemaInfo, decode, decode, decode, decode, encode, getNativeSchema, getSchemaInfo, requireFetchingSchemaInfo, setSchemaInfoProvider, supportSchemaVersioning, validate

Constructor Details

AbstractSchema

public AbstractSchema()

Method Details

decode

public abstract T decode(io.netty.buffer.ByteBuf byteBuf)

Decode a byteBuf into an object using the schema definition and deserializer implementation

Do not modify reader/writer index of ByteBuf so, it can be reused to access correct data.

Parameters:

byteBuf - the byte buffer to decode

Returns:

the deserialized object

decode

public T decode(io.netty.buffer.ByteBuf byteBuf,
 byte[] schemaVersion)

Decode a byteBuf into an object using a given version.

Parameters:

byteBuf - the byte array to decode

schemaVersion - the schema version to decode the object. null indicates using latest version.

Returns:

the deserialized object

clone

public Schema<T> clone()

Specified by:

clone in interface Schema<T>

Overrides:

clone in class Object

atSchemaVersion

public Schema<?> atSchemaVersion(byte[] schemaVersion)
                          throws SchemaSerializationException

Return an instance of this schema at the given version.

Parameters:

schemaVersion - the version

Returns:

the schema at that specific version

Throws:

SchemaSerializationException - in case of unknown schema version

NullPointerException - in case of null schemaVersion and supportSchemaVersioning is true