org.apache.beam.sdk.extensions.sql

Class SqlTypeCoder

java.lang.Object

org.apache.beam.sdk.coders.Coder<T>

org.apache.beam.sdk.coders.CustomCoder<java.lang.Object>

org.apache.beam.sdk.extensions.sql.SqlTypeCoder

All Implemented Interfaces:

java.io.Serializable

public abstract class SqlTypeCoder
extends CustomCoder<java.lang.Object>

Base class for coders for supported SQL types.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.beam.sdk.coders.Coder

Coder.Context, Coder.NonDeterministicException

Constructor Summary

Constructors

Constructor and Description
SqlTypeCoder()

Method Summary

Modifier and Type	Method and Description
java.lang.Object	decode(java.io.InputStream inStream) Decodes a value of type T from the given input stream in the given context.
protected abstract Coder	delegateCoder()
void	encode(java.lang.Object value, java.io.OutputStream outStream) Encodes the given value of type T onto the given output stream.
boolean	equals(java.lang.Object other)
int	hashCode()
void	verifyDeterministic() Throw Coder.NonDeterministicException if the coding is not deterministic.

Methods inherited from class org.apache.beam.sdk.coders.CustomCoder

getCoderArguments

Methods inherited from class org.apache.beam.sdk.coders.Coder

consistentWithEquals, decode, encode, getEncodedElementByteSize, getEncodedTypeDescriptor, isRegisterByteSizeObserverCheap, registerByteSizeObserver, structuralValue, verifyDeterministic, verifyDeterministic

Methods inherited from class java.lang.Object

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

Constructor Detail

SqlTypeCoder

public SqlTypeCoder()

Method Detail

encode

public void encode(java.lang.Object value,
                   java.io.OutputStream outStream)
            throws CoderException,
                   java.io.IOException

Description copied from class: Coder

Encodes the given value of type T onto the given output stream.

Specified by:

encode in class Coder<java.lang.Object>

Throws:

CoderException - if the value could not be encoded for some reason

java.io.IOException - if writing to the OutputStream fails for some reason

decode

public java.lang.Object decode(java.io.InputStream inStream)
                        throws CoderException,
                               java.io.IOException

Description copied from class: Coder

Decodes a value of type T from the given input stream in the given context. Returns the decoded value.

Specified by:

decode in class Coder<java.lang.Object>

Throws:

CoderException - if the value could not be decoded for some reason

java.io.IOException - if reading from the InputStream fails for some reason

verifyDeterministic

public void verifyDeterministic()
                         throws Coder.NonDeterministicException

Description copied from class: CustomCoder

Throw Coder.NonDeterministicException if the coding is not deterministic.

In order for a Coder to be considered deterministic, the following must be true:

• two values that compare as equal (via Object.equals() or Comparable.compareTo(), if supported) have the same encoding.
• the Coder always produces a canonical encoding, which is the same for an instance of an object even if produced on different computers at different times.

Overrides:

verifyDeterministic in class CustomCoder<java.lang.Object>

Throws:

Coder.NonDeterministicException - if this coder is not deterministic.

delegateCoder

protected abstract Coder delegateCoder()

equals

public boolean equals(java.lang.Object other)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object