Package org.apache.hadoop.hbase.types
Class OrderedBytesBase<T>
java.lang.Object
org.apache.hadoop.hbase.types.OrderedBytesBase<T>
- All Implemented Interfaces:
DataType<T>
- Direct Known Subclasses:
OrderedBlob
,OrderedBlobVar
,OrderedFloat32
,OrderedFloat64
,OrderedInt16
,OrderedInt32
,OrderedInt64
,OrderedInt8
,OrderedNumeric
,OrderedString
Base class for data types backed by the
OrderedBytes
encoding implementations.-
Field Summary
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Constructor Summary
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Method Summary
Modifier and TypeMethodDescriptiongetOrder()
Retrieve the sortOrder
imposed by this data type, or null when natural ordering is not preserved.boolean
Indicates whether this instance supports encoding null values.boolean
Indicates whether this instance writes encodedbyte[]
's which preserve the natural sort order of the unencoded value.boolean
Indicates whether this instance is able to skip over it's encoded value.int
skip
(PositionedByteRange src) Skipsrc
's position forward over one encoded value.Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Methods inherited from interface org.apache.hadoop.hbase.types.DataType
decode, encode, encodedClass, encodedLength
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Field Details
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order
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Constructor Details
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OrderedBytesBase
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Method Details
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isOrderPreserving
Description copied from interface:DataType
Indicates whether this instance writes encodedbyte[]
's which preserve the natural sort order of the unencoded value.- Specified by:
isOrderPreserving
in interfaceDataType<T>
- Returns:
true
when natural order is preserved,false
otherwise.
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getOrder
Description copied from interface:DataType
Retrieve the sortOrder
imposed by this data type, or null when natural ordering is not preserved. Value is either ascending or descending. Default is assumed to beOrder.ASCENDING
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isNullable
Description copied from interface:DataType
Indicates whether this instance supports encoding null values. This depends on the implementation details of the encoding format. AllDataType
s that support null should treat null as comparing less than any non-null value for default sort ordering purposes.- Specified by:
isNullable
in interfaceDataType<T>
- Returns:
true
when null is supported,false
otherwise.
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isSkippable
Description copied from interface:DataType
Indicates whether this instance is able to skip over it's encoded value.DataType
s that are not skippable can only be used as the right-most field of aStruct
.- Specified by:
isSkippable
in interfaceDataType<T>
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skip
Description copied from interface:DataType
Skipsrc
's position forward over one encoded value.
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