com.facebook.presto.common.type

Class BooleanType

java.lang.Object

com.facebook.presto.common.type.AbstractType

com.facebook.presto.common.type.AbstractPrimitiveType

com.facebook.presto.common.type.BooleanType

All Implemented Interfaces:

FixedWidthType, Type

public final class BooleanType
extends AbstractPrimitiveType
implements FixedWidthType

Field Summary

Fields

Modifier and Type	Field and Description
static BooleanType	BOOLEAN

Method Summary

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, int expectedEntries) Creates the preferred block builder for this type.
BlockBuilder	createBlockBuilder(BlockBuilderStatus blockBuilderStatus, int expectedEntries, int expectedBytesPerEntry) Creates the preferred block builder for this type.
static Block	createBlockForSingleNonNullValue(boolean value)
BlockBuilder	createFixedSizeBlockBuilder(int positionCount) Creates a block builder for this type sized to hold the specified number of positions.
boolean	equals(Object other)
boolean	equalTo(Block leftBlock, int leftPosition, Block rightBlock, int rightPosition) Are the values in the specified blocks at the specified positions equal?
boolean	getBoolean(Block block, int position) Gets the value at the block position as a boolean.
boolean	getBooleanUnchecked(UncheckedBlock block, int internalPosition) Gets the value at the block internalPosition - offsetBase as a boolean without boundary checks.
int	getFixedSize() Gets the size of a value of this type is bytes.
Object	getObjectValue(SqlFunctionProperties properties, Block block, int position) Gets an object representation of the type value in the block position.
long	hash(Block block, int position) Calculates the hash code of the value at the specified position in the specified block.
int	hashCode()
boolean	isComparable() True if the type supports equalTo and hash.
boolean	isOrderable() True if the type supports compareTo.
static Block	wrapByteArrayAsBooleanBlockWithoutNulls(byte[] booleansAsBytes) This method signifies a contract to callers that as an optimization, they can encode BooleanType blocks as a byte[] directly and potentially bypass the BlockBuilder / BooleanType abstraction in the name of efficiency.
void	writeBoolean(BlockBuilder blockBuilder, boolean value) Writes the boolean value into the BlockBuilder.

Methods inherited from class com.facebook.presto.common.type.AbstractPrimitiveType

getTypeSignature

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

getBlockUnchecked, getDisplayName, getDouble, getDoubleUnchecked, getJavaType, getLong, getLongUnchecked, getObject, getSlice, getSliceUnchecked, getTypeParameters, toString, writeDouble, writeLong, writeObject, writeSlice, writeSlice

Methods inherited from class java.lang.Object

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

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

getBlockUnchecked, getDisplayName, getDouble, getDoubleUnchecked, getJavaType, getLong, getLongUnchecked, getObject, getSlice, getSliceUnchecked, getTypeParameters, getTypeSignature, writeDouble, writeLong, writeObject, writeSlice, writeSlice

Field Detail

BOOLEAN

public static final BooleanType BOOLEAN

Method Detail

wrapByteArrayAsBooleanBlockWithoutNulls

public static Block wrapByteArrayAsBooleanBlockWithoutNulls(byte[] booleansAsBytes)

This method signifies a contract to callers that as an optimization, they can encode BooleanType blocks as a byte[] directly and potentially bypass the BlockBuilder / BooleanType abstraction in the name of efficiency. If in the future BooleanType encoding changes such that ByteArrayBlock is not always a valid or efficient representation, then this method must be removed and any usages changed

createBlockForSingleNonNullValue

public static Block createBlockForSingleNonNullValue(boolean value)

getFixedSize

public int getFixedSize()

Description copied from interface: FixedWidthType

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

Specified by:

getFixedSize in interface FixedWidthType

createBlockBuilder

public BlockBuilder createBlockBuilder(BlockBuilderStatus blockBuilderStatus,
                                       int expectedEntries,
                                       int expectedBytesPerEntry)

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

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

getObjectValue

public Object getObjectValue(SqlFunctionProperties properties,
                             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

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?

This method assumes input is not null.

Specified by:

equalTo in interface Type

Overrides:

equalTo in class AbstractType

hash

public long 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.

Specified by:

appendTo in interface Type

getBoolean

public boolean getBoolean(Block block,
                          int position)

Description copied from interface: Type

Gets the value at the block position as a boolean.

Specified by:

getBoolean in interface Type

Overrides:

getBoolean in class AbstractType

getBooleanUnchecked

public boolean getBooleanUnchecked(UncheckedBlock block,
                                   int internalPosition)

Description copied from interface: Type

Gets the value at the block internalPosition - offsetBase as a boolean without boundary checks.

Specified by:

getBooleanUnchecked in interface Type

Overrides:

getBooleanUnchecked in class AbstractType

writeBoolean

public void writeBoolean(BlockBuilder blockBuilder,
                         boolean value)

Description copied from interface: Type

Writes the boolean value into the BlockBuilder.

Specified by:

writeBoolean in interface Type

Overrides:

writeBoolean in class AbstractType

equals

public boolean equals(Object other)

Overrides:

equals in class AbstractType

hashCode

public int hashCode()

Overrides:

hashCode in class AbstractType