Class UuidType

java.lang.Object

io.trino.spi.type.AbstractType

io.trino.spi.type.UuidType

All Implemented Interfaces:

FixedWidthType, Type

public class UuidType
extends AbstractType
implements FixedWidthType

UUIDs are encoded in big-endian representation (the bytes are stored in the same order as they appear when a UUID is printed in hexadecimal).

Nested Class Summary

Nested classes/interfaces inherited from interface io.trino.spi.type.Type

Type.Range

Field Summary

Fields

Modifier and Type	Field	Description
static final UuidType	UUID

Method Summary

Modifier and Type	Method	Description
void	appendTo(Block block, int position, BlockBuilder blockBuilder)	Append the value at position in block to blockBuilder.
BlockBuilder	createBlockBuilder(BlockBuilderStatus blockBuilderStatus, int expectedEntries)	Creates the preferred block builder for this type.
BlockBuilder	createFixedSizeBlockBuilder(int positionCount)	Creates a block builder for this type sized to hold the specified number of positions.
int	getFixedSize()	Gets the size of a value of this type in bytes.
int	getFlatFixedSize()	Returns the fixed size of this type when written to a flat buffer.
Object	getObjectValue(ConnectorSession session, Block block, int position)	Gets an object representation of the type value in the block position.
final io.airlift.slice.Slice	getSlice(Block block, int position)	Gets the value at the block position as a Slice.
TypeOperatorDeclaration	getTypeOperatorDeclaration(TypeOperators typeOperators)	Gets the declared type specific operators for this type.
boolean	isComparable()	True if the type supports equalTo and hash.
boolean	isOrderable()	True if the type supports compareTo.
static io.airlift.slice.Slice	javaUuidToTrinoUuid(UUID uuid)
static UUID	trinoUuidToJavaUuid(io.airlift.slice.Slice uuid)
void	writeSlice(BlockBuilder blockBuilder, io.airlift.slice.Slice value)	Writes the Slice value into the BlockBuilder.
void	writeSlice(BlockBuilder blockBuilder, io.airlift.slice.Slice value, int offset, int length)	Writes the Slice value into the BlockBuilder.

Methods inherited from class io.trino.spi.type.AbstractType

equals, getBoolean, getDisplayName, getDouble, getJavaType, getLong, getObject, getTypeParameters, getTypeSignature, getValueBlockType, hashCode, toString, writeBoolean, writeDouble, writeLong, writeObject

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.trino.spi.type.FixedWidthType

createBlockBuilder, getFlatVariableWidthSize, isFlatVariableWidth, relocateFlatVariableWidthOffsets

Methods inherited from interface io.trino.spi.type.Type

createNullBlock, getBaseName, getBoolean, getDiscreteValues, getDisplayName, getDouble, getJavaType, getLong, getNextValue, getObject, getPreviousValue, getRange, getTypeId, getTypeParameters, getTypeSignature, getValueBlockType, writeBoolean, writeDouble, writeLong, writeObject

Field Details

UUID

public static final UuidType UUID

Method Details

getFixedSize

public int getFixedSize()

Description copied from interface: FixedWidthType

Gets the size of a value of this type in bytes. All values of a FixedWidthType are the same size.

Specified by:

getFixedSize in interface FixedWidthType

createBlockBuilder

public BlockBuilder createBlockBuilder(BlockBuilderStatus blockBuilderStatus,
 int expectedEntries)

Description copied from interface: Type

Creates the preferred 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

createFixedSizeBlockBuilder

public BlockBuilder createFixedSizeBlockBuilder(int positionCount)

Description copied from interface: FixedWidthType

Creates a block builder for this type sized to hold the specified number of positions.

Specified by:

createFixedSizeBlockBuilder in interface FixedWidthType

isComparable

public boolean isComparable()

Description copied from interface: Type

True if the type supports equalTo and hash.

Specified by:

isComparable in interface Type

Overrides:

isComparable in class AbstractType

isOrderable

public boolean isOrderable()

Description copied from interface: Type

True if the type supports compareTo.

Specified by:

isOrderable in interface Type

Overrides:

isOrderable in class AbstractType

getTypeOperatorDeclaration

public TypeOperatorDeclaration getTypeOperatorDeclaration(TypeOperators typeOperators)

Description copied from interface: Type

Gets the declared type specific operators for this type.

Specified by:

getTypeOperatorDeclaration in interface Type

getObjectValue

public Object getObjectValue(ConnectorSession session,
 Block block,
 int position)

Description copied from interface: Type

Gets an object representation of the type value in the block position. This is the value returned to the user via the REST endpoint and therefore must be JSON serializable.

Specified by:

getObjectValue in interface Type

appendTo

public void appendTo(Block block,
 int position,
 BlockBuilder blockBuilder)

Description copied from interface: Type

Append the value at position in block to blockBuilder.

Specified by:

appendTo in interface Type

writeSlice

public void writeSlice(BlockBuilder blockBuilder,
 io.airlift.slice.Slice value)

Description copied from interface: Type

Writes the Slice value into the BlockBuilder.

Specified by:

writeSlice in interface Type

Overrides:

writeSlice in class AbstractType

writeSlice

public void writeSlice(BlockBuilder blockBuilder,
 io.airlift.slice.Slice value,
 int offset,
 int length)

Description copied from interface: Type

Writes the Slice value into the BlockBuilder.

Specified by:

writeSlice in interface Type

Overrides:

writeSlice in class AbstractType

getSlice

public final io.airlift.slice.Slice getSlice(Block block,
 int position)

Description copied from interface: Type

Gets the value at the block position as a Slice.

Specified by:

getSlice in interface Type

Overrides:

getSlice in class AbstractType

getFlatFixedSize

public int getFlatFixedSize()

Description copied from interface: Type

Returns the fixed size of this type when written to a flat buffer.

Specified by:

getFlatFixedSize in interface Type

javaUuidToTrinoUuid

public static io.airlift.slice.Slice javaUuidToTrinoUuid(UUID uuid)

trinoUuidToJavaUuid

public static UUID trinoUuidToJavaUuid(io.airlift.slice.Slice uuid)