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java.lang.Objectorg.apache.hadoop.hbase.types.OrderedBytesBase<T>
@InterfaceAudience.Public @InterfaceStability.Evolving public abstract class OrderedBytesBase<T>
Base class for data types backed by the OrderedBytes encoding
implementations.
| Field Summary | |
|---|---|
protected Order |
order
|
| Constructor Summary | |
|---|---|
protected |
OrderedBytesBase(Order order)
|
| Method Summary | |
|---|---|
Order |
getOrder()
Retrieve the sort Order imposed by this data type, or null when
natural ordering is not preserved. |
boolean |
isNullable()
Indicates whether this instance supports encoding null values. |
boolean |
isOrderPreserving()
Indicates whether this instance writes encoded byte[]'s
which preserve the natural sort order of the unencoded value. |
boolean |
isSkippable()
Indicates whether this instance is able to skip over it's encoded value. |
int |
skip(PositionedByteRange src)
Skip src'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 |
| Field Detail |
|---|
protected final Order order
| Constructor Detail |
|---|
protected OrderedBytesBase(Order order)
| Method Detail |
|---|
public boolean isOrderPreserving()
DataTypebyte[]'s
which preserve the natural sort order of the unencoded value.
isOrderPreserving in interface DataType<T>true when natural order is preserved,
false otherwise.public Order getOrder()
DataTypeOrder imposed by this data type, or null when
natural ordering is not preserved. Value is either ascending or
descending. Default is assumed to be Order.ASCENDING.
getOrder in interface DataType<T>public boolean isNullable()
DataTypeDataTypes that support null should treat null as comparing
less than any non-null value for default sort ordering purposes.
isNullable in interface DataType<T>true when null is supported, false otherwise.public boolean isSkippable()
DataTypeDataTypes that are not skippable can only be used as the
right-most field of a Struct.
isSkippable in interface DataType<T>public int skip(PositionedByteRange src)
DataTypesrc's position forward over one encoded value.
skip in interface DataType<T>src - the buffer containing the encoded value.
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