public class Float4Vector extends BaseFixedWidthVector
修飾子とタイプ | フィールドと説明 |
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static byte |
TYPE_WIDTH |
field, validityAllocationSizeInBytes, validityBuffer, valueAllocationSizeInBytes, valueBuffer, valueCount
allocator, INITIAL_VALUE_ALLOCATION, MAX_ALLOCATION_SIZE, MAX_ALLOCATION_SIZE_PROPERTY, name
コンストラクタと説明 |
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Float4Vector(String name,
BufferAllocator allocator)
Instantiate a Float4Vector.
|
Float4Vector(String name,
FieldType fieldType,
BufferAllocator allocator)
Instantiate a Float4Vector.
|
修飾子とタイプ | メソッドと説明 |
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void |
copyFrom(int fromIndex,
int thisIndex,
Float4Vector from)
Copy a cell value from a particular index in source vector to a particular
position in this vector
|
void |
copyFromSafe(int fromIndex,
int thisIndex,
Float4Vector from)
Same as
copyFrom(int, int, Float4Vector) except that
it handles the case when the capacity of the vector needs to be expanded
before copy. |
static float |
get(ArrowBuf buffer,
int index)
Given a data buffer, get the value stored at a particular position
in the vector.
|
float |
get(int index)
Get the element at the given index from the vector.
|
void |
get(int index,
NullableFloat4Holder holder)
Get the element at the given index from the vector and
sets the state in holder.
|
Types.MinorType |
getMinorType()
Get minor type for this vector.
|
Float |
getObject(int index)
Same as
get(int) . |
FieldReader |
getReader()
Get a reader that supports reading values from this vector
|
TransferPair |
getTransferPair(String ref,
BufferAllocator allocator)
Construct a TransferPair comprising of this and and a target vector of
the same type.
|
TransferPair |
makeTransferPair(ValueVector to)
Construct a TransferPair with a desired target vector of the same type.
|
void |
set(int index,
float value)
Set the element at the given index to the given value.
|
void |
set(int index,
Float4Holder holder)
Set the element at the given index to the value set in data holder.
|
void |
set(int index,
int isSet,
float value)
Store the given value at a particular position in the vector. isSet indicates
whether the value is NULL or not.
|
void |
set(int index,
NullableFloat4Holder holder)
Set the element at the given index to the value set in data holder.
|
void |
setNull(int index)
Set the element at the given index to null.
|
void |
setSafe(int index,
float value)
Same as
set(int, float) except that it handles the
case when index is greater than or equal to existing
value capacity BaseFixedWidthVector.getValueCapacity() . |
void |
setSafe(int index,
Float4Holder holder)
Same as
set(int, Float4Holder) except that it handles the
case when index is greater than or equal to existing
value capacity BaseFixedWidthVector.getValueCapacity() . |
void |
setSafe(int index,
int isSet,
float value)
Same as
set(int, int, float) except that it handles the case
when index is greater than or equal to current value capacity of the
vector. |
void |
setSafe(int index,
NullableFloat4Holder holder)
Same as
set(int, NullableFloat4Holder) except that it handles the
case when index is greater than or equal to existing
value capacity BaseFixedWidthVector.getValueCapacity() . |
allocateNew, allocateNew, allocateNewSafe, clear, close, decrementAllocationMonitor, getBuffers, getBufferSize, getBufferSizeFor, getChildrenFromFields, getDataBuffer, getDataBufferAddress, getField, getFieldBuffers, getFieldInnerVectors, getNullCount, getOffsetBuffer, getOffsetBufferAddress, getTransferPair, getTransferPair, getValidityBuffer, getValidityBufferAddress, getValueCapacity, getValueCount, handleSafe, incrementAllocationMonitor, initializeChildrenFromFields, isNull, isSafe, isSet, loadFieldBuffers, reAlloc, reset, set, set, setIndexDefined, setInitialCapacity, setSafe, setSafe, setValueCount, splitAndTransferTo, transferTo, zeroVector
checkBufRefs, compareTypes, getAllocator, getValidityBufferSizeFromCount, iterator, releaseBuffer, toString
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
getAllocator
forEach, iterator, spliterator
public static final byte TYPE_WIDTH
public Float4Vector(String name, BufferAllocator allocator)
name
- name of the vectorallocator
- allocator for memory management.public Float4Vector(String name, FieldType fieldType, BufferAllocator allocator)
name
- name of the vectorfieldType
- type of Field materialized by this vectorallocator
- allocator for memory management.public FieldReader getReader()
public Types.MinorType getMinorType()
Types.MinorType
public float get(int index) throws IllegalStateException
index
- position of elementIllegalStateException
public void get(int index, NullableFloat4Holder holder)
index
- position of elementpublic Float getObject(int index)
get(int)
.index
- position of elementpublic void copyFrom(int fromIndex, int thisIndex, Float4Vector from)
fromIndex
- position to copy from in source vectorthisIndex
- position to copy to in this vectorfrom
- source vectorpublic void copyFromSafe(int fromIndex, int thisIndex, Float4Vector from)
copyFrom(int, int, Float4Vector)
except that
it handles the case when the capacity of the vector needs to be expanded
before copy.fromIndex
- position to copy from in source vectorthisIndex
- position to copy to in this vectorfrom
- source vectorpublic void set(int index, float value)
index
- position of elementvalue
- value of elementpublic void set(int index, NullableFloat4Holder holder) throws IllegalArgumentException
index
- position of elementholder
- nullable data holder for value of elementIllegalArgumentException
public void set(int index, Float4Holder holder)
index
- position of elementholder
- data holder for value of elementpublic void setSafe(int index, float value)
set(int, float)
except that it handles the
case when index is greater than or equal to existing
value capacity BaseFixedWidthVector.getValueCapacity()
.index
- position of elementvalue
- value of elementpublic void setSafe(int index, NullableFloat4Holder holder) throws IllegalArgumentException
set(int, NullableFloat4Holder)
except that it handles the
case when index is greater than or equal to existing
value capacity BaseFixedWidthVector.getValueCapacity()
.index
- position of elementholder
- nullable data holder for value of elementIllegalArgumentException
public void setSafe(int index, Float4Holder holder)
set(int, Float4Holder)
except that it handles the
case when index is greater than or equal to existing
value capacity BaseFixedWidthVector.getValueCapacity()
.index
- position of elementholder
- data holder for value of elementpublic void setNull(int index)
index
- position of elementpublic void set(int index, int isSet, float value)
index
- position of the new valueisSet
- 0 for NULL value, 1 otherwisevalue
- element valuepublic void setSafe(int index, int isSet, float value)
set(int, int, float)
except that it handles the case
when index is greater than or equal to current value capacity of the
vector.index
- position of the new valueisSet
- 0 for NULL value, 1 otherwisevalue
- element valuepublic static float get(ArrowBuf buffer, int index)
buffer
- data bufferindex
- position of the element.public TransferPair getTransferPair(String ref, BufferAllocator allocator)
getTransferPair
インタフェース内 ValueVector
getTransferPair
クラス内 BaseFixedWidthVector
ref
- name of the target vectorallocator
- allocator for the target vectorTransferPair
public TransferPair makeTransferPair(ValueVector to)
to
- target vectorTransferPair
Copyright © 2018 The Apache Software Foundation. All rights reserved.