public static class GlobalWindow.Coder extends StructuredCoder<GlobalWindow>
GlobalWindow.Coder for encoding and decoding GlobalWindows.Coder.Context, Coder.NonDeterministicException| Modifier and Type | Field and Description |
|---|---|
static GlobalWindow.Coder |
INSTANCE |
| Modifier and Type | Method and Description |
|---|---|
boolean |
consistentWithEquals()
|
GlobalWindow |
decode(java.io.InputStream inStream)
Decodes a value of type
T from the given input stream in the given context. |
void |
encode(GlobalWindow window,
java.io.OutputStream outStream)
Encodes the given value of type
T onto the given output stream. |
java.util.List<Coder<?>> |
getCoderArguments()
|
void |
verifyDeterministic()
Throw
Coder.NonDeterministicException if the coding is not deterministic. |
equals, getComponents, hashCode, toStringdecode, encode, getEncodedElementByteSize, getEncodedTypeDescriptor, isRegisterByteSizeObserverCheap, registerByteSizeObserver, structuralValue, verifyDeterministic, verifyDeterministicpublic static final GlobalWindow.Coder INSTANCE
public void encode(GlobalWindow window, java.io.OutputStream outStream)
CoderT onto the given output stream.encode in class Coder<GlobalWindow>public GlobalWindow decode(java.io.InputStream inStream)
CoderT from the given input stream in the given context. Returns the
decoded value.decode in class Coder<GlobalWindow>public void verifyDeterministic()
CoderCoder.NonDeterministicException if the coding is not deterministic.
In order for a Coder to be considered deterministic, the following must be true:
Object.equals() or Comparable.compareTo(), if supported) have the same encoding.
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.
verifyDeterministic in class Coder<GlobalWindow>public boolean consistentWithEquals()
Codertrue if this Coder is injective with respect to Object.equals(java.lang.Object).
Whenever the encoded bytes of two values are equal, then the original values are equal
according to Objects.equals(). Note that this is well-defined for null.
This condition is most notably false for arrays. More generally, this condition is false
whenever equals() compares object identity, rather than performing a
semantic/structural comparison.
By default, returns false.
consistentWithEquals in class Coder<GlobalWindow>public final java.util.List<Coder<?>> getCoderArguments()
CoderCoder for a parameterized type, returns the list of Coders being
used for each of the parameters in the same order they appear within the parameterized type's
type signature. If this cannot be done, or this Coder does not encode/decode a
parameterized type, returns the empty list.getCoderArguments in class Coder<GlobalWindow>