Package org.datavec.api.writable
Class NullWritable
- java.lang.Object
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- org.datavec.api.writable.NullWritable
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- All Implemented Interfaces:
Serializable
,Comparable
,WritableComparable
,Writable
public class NullWritable extends Object implements WritableComparable
- See Also:
- Serialized Form
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Field Summary
Fields Modifier and Type Field Description static NullWritable
INSTANCE
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Constructor Summary
Constructors Constructor Description NullWritable()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description int
compareTo(Object o)
boolean
equals(Object o)
WritableType
getType()
Get the type of the writable.void
readFields(DataInput in)
Deserialize the fields of this object fromin
.double
toDouble()
Convert Writable to double.float
toFloat()
Convert Writable to float.int
toInt()
Convert Writable to int.long
toLong()
Convert Writable to long.String
toString()
void
write(DataOutput out)
Serialize the fields of this object toout
.void
writeType(DataOutput out)
Write the type (a single short value) to the DataOutput.
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Field Detail
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INSTANCE
public static final NullWritable INSTANCE
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Method Detail
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compareTo
public int compareTo(Object o)
- Specified by:
compareTo
in interfaceComparable
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write
public void write(DataOutput out) throws IOException
Description copied from interface:Writable
Serialize the fields of this object toout
.- Specified by:
write
in interfaceWritable
- Parameters:
out
-DataOuput
to serialize this object into.- Throws:
IOException
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readFields
public void readFields(DataInput in) throws IOException
Description copied from interface:Writable
Deserialize the fields of this object fromin
.For efficiency, implementations should attempt to re-use storage in the existing object where possible.
- Specified by:
readFields
in interfaceWritable
- Parameters:
in
-DataInput
to deseriablize this object from.- Throws:
IOException
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writeType
public void writeType(DataOutput out) throws IOException
Description copied from interface:Writable
Write the type (a single short value) to the DataOutput. SeeWritableFactory
for details.- Specified by:
writeType
in interfaceWritable
- Parameters:
out
- DataOutput to write to- Throws:
IOException
- For errors during writing
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toDouble
public double toDouble()
Description copied from interface:Writable
Convert Writable to double. Whether this is supported depends on the specific writable.
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toFloat
public float toFloat()
Description copied from interface:Writable
Convert Writable to float. Whether this is supported depends on the specific writable.
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toInt
public int toInt()
Description copied from interface:Writable
Convert Writable to int. Whether this is supported depends on the specific writable.
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toLong
public long toLong()
Description copied from interface:Writable
Convert Writable to long. Whether this is supported depends on the specific writable.
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getType
public WritableType getType()
Description copied from interface:Writable
Get the type of the writable.
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