com.facebook.presto.spi.type

Class HyperLogLogType

java.lang.Object

com.facebook.presto.spi.type.HyperLogLogType

All Implemented Interfaces:

Type, VariableWidthType

public class HyperLogLogType
extends Object
implements VariableWidthType

Field Summary

Fields

Modifier and Type	Field and Description
static BlockEncodingFactory<?>	BLOCK_ENCODING_FACTORY
static HyperLogLogType	HYPER_LOG_LOG

Constructor Summary

Constructors

Constructor and Description
HyperLogLogType()

Method Summary

Methods

Modifier and Type	Method and Description
void	appendTo(io.airlift.slice.Slice slice, int offset, BlockBuilder blockBuilder) Append the value at offset in slice to blockBuilder.
void	appendTo(io.airlift.slice.Slice slice, int offset, io.airlift.slice.SliceOutput sliceOutput) Append the value at offset in slice to sliceOutput.
int	compareTo(io.airlift.slice.Slice leftSlice, int leftOffset, io.airlift.slice.Slice rightSlice, int rightOffset) Compare the values in the specified slices at the specified offsets equal.
BlockBuilder	createBlockBuilder(BlockBuilderStatus blockBuilderStatus) Creates a block builder for this type.
boolean	equals(Object o)
boolean	equalTo(io.airlift.slice.Slice leftSlice, int leftOffset, BlockCursor rightCursor) Is the value at the specified offset in the specified slice equal value at the specified cursor?
boolean	equalTo(io.airlift.slice.Slice leftSlice, int leftOffset, io.airlift.slice.Slice rightSlice, int rightOffset) Are the values in the specified slices at the specified offsets equal?
static HyperLogLogType	getInstance()
Class<?>	getJavaType() Gets the Java class type used to represent this value on the stack during expression execution.
int	getLength(io.airlift.slice.Slice slice, int offset) Gets the length of the value at the specified offset in the specified slice.
String	getName() Gets the name of this type which must be case insensitive globally unique.
Object	getObjectValue(ConnectorSession session, io.airlift.slice.Slice slice, int offset) Gets an object representation of the type encoded in the specified slice at the specified offset.
io.airlift.slice.Slice	getSlice(io.airlift.slice.Slice slice, int offset) Gets the value at the specified offset in the specified slice as a Slice.
int	hash(io.airlift.slice.Slice slice, int offset) Calculates the hash code of the value at the specified offset in the specified slice.
int	hashCode()
String	toString()
int	writeSlice(io.airlift.slice.SliceOutput sliceOutput, io.airlift.slice.Slice value, int offset, int length) Writes the Slice value into the specified slice output.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

HYPER_LOG_LOG

public static final HyperLogLogType HYPER_LOG_LOG

BLOCK_ENCODING_FACTORY

public static final BlockEncodingFactory<?> BLOCK_ENCODING_FACTORY

Constructor Detail

HyperLogLogType

public HyperLogLogType()

Method Detail

getInstance

public static HyperLogLogType getInstance()

getName

public String getName()

Description copied from interface: Type

Gets the name of this type which must be case insensitive globally unique. The name of a user defined type must be a legal identifier in Presto.

Specified by:

getName in interface Type

getJavaType

public Class<?> getJavaType()

Description copied from interface: Type

Gets the Java class type used to represent this value on the stack during expression execution. This value is used to determine which method should be called on Cursor, RecordSet or RandomAccessBlock to fetch a value of this type. Currently, this must be boolean, long, double, or Slice.

Specified by:

getJavaType in interface Type

getLength

public int getLength(io.airlift.slice.Slice slice,
            int offset)

Description copied from interface: VariableWidthType

Gets the length of the value at the specified offset in the specified slice.

Specified by:

getLength in interface VariableWidthType

getSlice

public io.airlift.slice.Slice getSlice(io.airlift.slice.Slice slice,
                              int offset)

Description copied from interface: VariableWidthType

Gets the value at the specified offset in the specified slice as a Slice.

Specified by:

getSlice in interface VariableWidthType

writeSlice

public int writeSlice(io.airlift.slice.SliceOutput sliceOutput,
             io.airlift.slice.Slice value,
             int offset,
             int length)

Description copied from interface: VariableWidthType

Writes the Slice value into the specified slice output.

Specified by:

writeSlice in interface VariableWidthType

equalTo

public boolean equalTo(io.airlift.slice.Slice leftSlice,
              int leftOffset,
              io.airlift.slice.Slice rightSlice,
              int rightOffset)

Description copied from interface: VariableWidthType

Are the values in the specified slices at the specified offsets equal?

Specified by:

equalTo in interface VariableWidthType

equalTo

public boolean equalTo(io.airlift.slice.Slice leftSlice,
              int leftOffset,
              BlockCursor rightCursor)

Description copied from interface: VariableWidthType

Is the value at the specified offset in the specified slice equal value at the specified cursor?

Specified by:

equalTo in interface VariableWidthType

hash

public int hash(io.airlift.slice.Slice slice,
       int offset)

Description copied from interface: VariableWidthType

Calculates the hash code of the value at the specified offset in the specified slice.

Specified by:

hash in interface VariableWidthType

compareTo

public int compareTo(io.airlift.slice.Slice leftSlice,
            int leftOffset,
            io.airlift.slice.Slice rightSlice,
            int rightOffset)

Description copied from interface: VariableWidthType

Compare the values in the specified slices at the specified offsets equal.

Specified by:

compareTo in interface VariableWidthType

appendTo

public void appendTo(io.airlift.slice.Slice slice,
            int offset,
            BlockBuilder blockBuilder)

Description copied from interface: VariableWidthType

Append the value at offset in slice to blockBuilder.

Specified by:

appendTo in interface VariableWidthType

appendTo

public void appendTo(io.airlift.slice.Slice slice,
            int offset,
            io.airlift.slice.SliceOutput sliceOutput)

Description copied from interface: VariableWidthType

Append the value at offset in slice to sliceOutput.

Specified by:

appendTo in interface VariableWidthType

getObjectValue

public Object getObjectValue(ConnectorSession session,
                    io.airlift.slice.Slice slice,
                    int offset)

Description copied from interface: VariableWidthType

Gets an object representation of the type encoded in the specified slice at the specified offset. This is the value returned to the user via the REST endpoint and therefore must be JSON serializable.

Specified by:

getObjectValue in interface VariableWidthType

createBlockBuilder

public BlockBuilder createBlockBuilder(BlockBuilderStatus blockBuilderStatus)

Description copied from interface: Type

Creates a block builder for this type. This is the builder used to store values after an expression projection within the query.

Specified by:

createBlockBuilder in interface Type

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object