Class AbstractVariableWidthType

java.lang.Object

io.trino.spi.type.AbstractType

io.trino.spi.type.AbstractVariableWidthType

All Implemented Interfaces:

Type, VariableWidthType

Direct Known Subclasses:

CharType, HyperLogLogType, P4HyperLogLogType, QuantileDigestType, VarbinaryType, VarcharType

public abstract class AbstractVariableWidthType
extends AbstractType
implements VariableWidthType

Nested Class Summary

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

Type.Range

Field Summary

Fields

Modifier and Type	Field	Description
protected static final TypeOperatorDeclaration	DEFAULT_COMPARABLE_OPERATORS
protected static final TypeOperatorDeclaration	DEFAULT_ORDERING_OPERATORS
protected static final TypeOperatorDeclaration	DEFAULT_READ_OPERATORS
protected static final int	EXPECTED_BYTES_PER_ENTRY

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractVariableWidthType(TypeSignature signature, Class<?> javaType)

Method Summary

Modifier and Type	Method	Description
void	appendTo(Block block, int position, BlockBuilder blockBuilder)	Append the value at position in block to blockBuilder.
VariableWidthBlockBuilder	createBlockBuilder(BlockBuilderStatus blockBuilderStatus, int expectedEntries)	Creates the preferred block builder for this type.
VariableWidthBlockBuilder	createBlockBuilder(BlockBuilderStatus blockBuilderStatus, int expectedEntries, int expectedBytesPerEntry)	Creates the preferred block builder for this type.
int	getFlatFixedSize()	Returns the fixed size of this type when written to a flat buffer.
int	getFlatVariableWidthSize(Block block, int position)	Returns the variable width size of the value at the specified position when written to a flat buffer.
TypeOperatorDeclaration	getTypeOperatorDeclaration(TypeOperators typeOperators)	Gets the declared type specific operators for this type.
boolean	isFlatVariableWidth()	Returns true if this type is variable width when written to a flat buffer.
int	relocateFlatVariableWidthOffsets(byte[] fixedSizeSlice, int fixedSizeOffset, byte[] variableSizeSlice, int variableSizeOffset)	Update the variable width offsets recorded in the value.

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

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

Methods inherited from class java.lang.Object

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

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

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

Field Details

EXPECTED_BYTES_PER_ENTRY

protected static final int EXPECTED_BYTES_PER_ENTRY

See Also:

• Constant Field Values

DEFAULT_READ_OPERATORS

protected static final TypeOperatorDeclaration DEFAULT_READ_OPERATORS

DEFAULT_COMPARABLE_OPERATORS

protected static final TypeOperatorDeclaration DEFAULT_COMPARABLE_OPERATORS

DEFAULT_ORDERING_OPERATORS

protected static final TypeOperatorDeclaration DEFAULT_ORDERING_OPERATORS

Constructor Details

AbstractVariableWidthType

protected AbstractVariableWidthType(TypeSignature signature,
 Class<?> javaType)

Method Details

createBlockBuilder

public VariableWidthBlockBuilder 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 VariableWidthBlockBuilder 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

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

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

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

isFlatVariableWidth

public boolean isFlatVariableWidth()

Description copied from interface: Type

Returns true if this type is variable width when written to a flat buffer.

Specified by:

isFlatVariableWidth in interface Type

getFlatVariableWidthSize

public int getFlatVariableWidthSize(Block block,
 int position)

Description copied from interface: Type

Returns the variable width size of the value at the specified position when written to a flat buffer.

Specified by:

getFlatVariableWidthSize in interface Type

relocateFlatVariableWidthOffsets

public int relocateFlatVariableWidthOffsets(byte[] fixedSizeSlice,
 int fixedSizeOffset,
 byte[] variableSizeSlice,
 int variableSizeOffset)

Description copied from interface: Type

Update the variable width offsets recorded in the value. This method is called after the value has been moved to a new location, and therefore the offsets need to be updated. Returns the length of the variable width data, so container types can update their offsets.

Specified by:

relocateFlatVariableWidthOffsets in interface Type

Returns:

the length of the variable width data