Package org.apache.beam.sdk.io.fs
Class MetadataCoderV2
- java.lang.Object
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- org.apache.beam.sdk.coders.Coder<T>
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- org.apache.beam.sdk.coders.StructuredCoder<T>
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- org.apache.beam.sdk.coders.AtomicCoder<MatchResult.Metadata>
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- org.apache.beam.sdk.io.fs.MetadataCoderV2
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- All Implemented Interfaces:
java.io.Serializable
@Experimental(FILESYSTEM) public class MetadataCoderV2 extends AtomicCoder<MatchResult.Metadata>
- See Also:
- Serialized Form
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Nested Class Summary
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Nested classes/interfaces inherited from class org.apache.beam.sdk.coders.Coder
Coder.Context, Coder.NonDeterministicException
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description boolean
consistentWithEquals()
MatchResult.Metadata
decode(java.io.InputStream is)
Decodes a value of typeT
from the given input stream in the given context.void
encode(MatchResult.Metadata value, java.io.OutputStream os)
Encodes the given value of typeT
onto the given output stream.static MetadataCoderV2
of()
Returns the singletonMetadataCoderV2
instance.-
Methods inherited from class org.apache.beam.sdk.coders.AtomicCoder
equals, getCoderArguments, getComponents, hashCode, verifyDeterministic
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Methods inherited from class org.apache.beam.sdk.coders.StructuredCoder
toString
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Methods inherited from class org.apache.beam.sdk.coders.Coder
decode, encode, getEncodedElementByteSize, getEncodedTypeDescriptor, isRegisterByteSizeObserverCheap, registerByteSizeObserver, structuralValue, verifyDeterministic, verifyDeterministic
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Method Detail
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of
public static MetadataCoderV2 of()
Returns the singletonMetadataCoderV2
instance.
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encode
public void encode(MatchResult.Metadata value, java.io.OutputStream os) throws java.io.IOException
Description copied from class:Coder
Encodes the given value of typeT
onto the given output stream.- Specified by:
encode
in classCoder<MatchResult.Metadata>
- Throws:
java.io.IOException
- if writing to theOutputStream
fails for some reasonCoderException
- if the value could not be encoded for some reason
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decode
public MatchResult.Metadata decode(java.io.InputStream is) throws java.io.IOException
Description copied from class:Coder
Decodes a value of typeT
from the given input stream in the given context. Returns the decoded value.- Specified by:
decode
in classCoder<MatchResult.Metadata>
- Throws:
java.io.IOException
- if reading from theInputStream
fails for some reasonCoderException
- if the value could not be decoded for some reason
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consistentWithEquals
public boolean consistentWithEquals()
Description copied from class:Coder
Returnstrue
if thisCoder
is injective with respect toObject.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 fornull
.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.
- Overrides:
consistentWithEquals
in classCoder<MatchResult.Metadata>
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