com.facebook.presto.spi.type

Class VarcharType

java.lang.Object

com.facebook.presto.spi.type.AbstractType

com.facebook.presto.spi.type.AbstractVariableWidthType

com.facebook.presto.spi.type.VarcharType

All Implemented Interfaces:

Type, VariableWidthType

public class VarcharType
extends AbstractVariableWidthType

Field Summary

Fields

Modifier and Type	Field and Description
static VarcharType	VARCHAR

Constructor Summary

Constructors

Constructor and Description
VarcharType()

Method Summary

Methods

Modifier and Type	Method and Description
void	appendTo(Block block, int position, BlockBuilder blockBuilder) Append the value at position in block to blockBuilder.
int	compareTo(Block leftBlock, int leftPosition, Block rightBlock, int rightPosition) Compare the values in the specified block at the specified positions equal.
BlockBuilder	createBlockBuilder(BlockBuilderStatus blockBuilderStatus) Creates a block builder for this type.
boolean	equalTo(Block leftBlock, int leftPosition, Block rightBlock, int rightPosition) Are the values in the specified blocks at the specified positions equal?
Object	getObjectValue(ConnectorSession session, Block block, int position) Gets an object representation of the type value in the block position.
io.airlift.slice.Slice	getSlice(Block block, int position) Gets the value at the block position as a Slice.
int	hash(Block block, int position) Calculates the hash code of the value at the specified position in the specified block.
boolean	isComparable() True if the type supports equalTo and hash.
boolean	isOrderable() True if the type supports compareTo.
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.
void	writeString(BlockBuilder blockBuilder, String value)

Methods inherited from class com.facebook.presto.spi.type.AbstractType

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

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.facebook.presto.spi.type.Type

getBoolean, getDisplayName, getDouble, getJavaType, getLong, getTypeParameters, getTypeSignature, writeBoolean, writeDouble, writeLong

Field Detail

VARCHAR

public static final VarcharType VARCHAR

Constructor Detail

VarcharType

public VarcharType()

Method Detail

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

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.

equalTo

public boolean equalTo(Block leftBlock,
              int leftPosition,
              Block rightBlock,
              int rightPosition)

Description copied from interface: Type

Are the values in the specified blocks at the specified positions equal?

Specified by:

equalTo in interface Type

Overrides:

equalTo in class AbstractType

hash

public int hash(Block block,
       int position)

Description copied from interface: Type

Calculates the hash code of the value at the specified position in the specified block.

Specified by:

hash in interface Type

Overrides:

hash in class AbstractType

compareTo

public int compareTo(Block leftBlock,
            int leftPosition,
            Block rightBlock,
            int rightPosition)

Description copied from interface: Type

Compare the values in the specified block at the specified positions equal.

Specified by:

compareTo in interface Type

Overrides:

compareTo in class AbstractType

appendTo

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

Description copied from interface: Type

Append the value at position in block to blockBuilder.

getSlice

public 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

writeString

public void writeString(BlockBuilder blockBuilder,
               String value)

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

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

Overrides:

createBlockBuilder in class AbstractVariableWidthType