AbstractDataBufferWindow
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Public Methods
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final
B
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buffer()
Returns the buffer backing this window.
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final
long
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offset()
Returns the current offset of this window in the original buffer.
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final
long
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size()
Returns the size of this buffer window.
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final
DataBufferWindow<B>
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slide(long step)
Moves the window of step elements in the original buffer.
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final
DataBufferWindow<B>
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slideTo(long index)
Moves the window at the given position in the original buffer.
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Inherited Methods
From class
java.lang.Object
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boolean
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equals(Object arg0)
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final
Class<?>
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getClass()
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int
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hashCode()
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final
void
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notify()
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final
void
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notifyAll()
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String
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toString()
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final
void
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wait(long arg0, int arg1)
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final
void
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wait(long arg0)
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final
void
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wait()
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Public Methods
public
final
B
buffer
()
Returns the buffer backing this window.
Each window instance has it's own buffer providing a view onto the original
DataBuffer. The buffers are mutated when the window slides to different offsets.
For example:
IntDataBuffer buffer = DataBuffers.of(0, 1, 2, 3);
DataBufferWindow<IntDataBuffer> window = buffer.window(0, 2);
IntDataBuffer windowBuffer = window.buffer();
assertEquals(0, windowBuffer.getInt(0));
assertEquals(1, windowBuffer.getInt(1));
window.slideTo(2);
assertEquals(2, windowBuffer.getInt(0));
assertEquals(3, windowBuffer.getInt(1));
assertSame(windowBuffer, window.buffer());
public
final
long
offset
()
Returns the current offset of this window in the original buffer.
public
final
long
size
()
Returns the size of this buffer window.
public
final
DataBufferWindow<B>
slide
(long step)
Moves the window of step elements in the original buffer.
The size of the window remains the same and its offset is set to offset() + step.
If step is positive, then the window will slide forward. If it is negative, it will
slide backward.
Parameters
| step |
value to add to the current offset of this window |
public
final
DataBufferWindow<B>
slideTo
(long index)
Moves the window at the given position in the original buffer.
The size of the window remains the same and its offset is set to index, so that
accessing the value of buffer() at index x will return the value at
index + x in the original buffer.
Parameters
| index |
new offset for this window |
Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.
Last updated 2021-11-29 UTC.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2021-11-29 UTC."],[],[],null,["# AbstractDataBufferWindow\n\npublic abstract class **AbstractDataBufferWindow** \n\n### Public Methods\n\n|--------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| final B | [buffer](/jvm/api_docs/java/org/tensorflow/ndarray/impl/buffer/AbstractDataBufferWindow#buffer())() Returns the buffer backing this window. |\n| final long | [offset](/jvm/api_docs/java/org/tensorflow/ndarray/impl/buffer/AbstractDataBufferWindow#offset())() Returns the current offset of this window in the original buffer. |\n| final long | [size](/jvm/api_docs/java/org/tensorflow/ndarray/impl/buffer/AbstractDataBufferWindow#size())() Returns the size of this buffer window. |\n| final [DataBufferWindow](/jvm/api_docs/java/org/tensorflow/ndarray/buffer/DataBufferWindow)\\\u003cB\\\u003e | [slide](/jvm/api_docs/java/org/tensorflow/ndarray/impl/buffer/AbstractDataBufferWindow#slide(long))(long step) Moves the window of `step` elements in the original buffer. |\n| final [DataBufferWindow](/jvm/api_docs/java/org/tensorflow/ndarray/buffer/DataBufferWindow)\\\u003cB\\\u003e | [slideTo](/jvm/api_docs/java/org/tensorflow/ndarray/impl/buffer/AbstractDataBufferWindow#slideTo(long))(long index) Moves the window at the given position in the original buffer. |\n\n### Inherited Methods\n\nFrom class java.lang.Object \n\n|------------------|---------------------------|\n| boolean | equals(Object arg0) |\n| final Class\\\u003c?\\\u003e | getClass() |\n| int | hashCode() |\n| final void | notify() |\n| final void | notifyAll() |\n| String | toString() |\n| final void | wait(long arg0, int arg1) |\n| final void | wait(long arg0) |\n| final void | wait() |\n\nFrom interface [org.tensorflow.ndarray.buffer.DataBufferWindow](/jvm/api_docs/java/org/tensorflow/ndarray/buffer/DataBufferWindow) \n\n|-----------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| abstract B | [buffer](/jvm/api_docs/java/org/tensorflow/ndarray/buffer/DataBufferWindow#buffer())() Returns the buffer backing this window. |\n| abstract long | [offset](/jvm/api_docs/java/org/tensorflow/ndarray/buffer/DataBufferWindow#offset())() Returns the current offset of this window in the original buffer. |\n| abstract long | [size](/jvm/api_docs/java/org/tensorflow/ndarray/buffer/DataBufferWindow#size())() Returns the size of this buffer window. |\n| abstract [DataBufferWindow](/jvm/api_docs/java/org/tensorflow/ndarray/buffer/DataBufferWindow)\\\u003cB\\\u003e | [slide](/jvm/api_docs/java/org/tensorflow/ndarray/buffer/DataBufferWindow#slide(long))(long step) Moves the window of `step` elements in the original buffer. |\n| abstract [DataBufferWindow](/jvm/api_docs/java/org/tensorflow/ndarray/buffer/DataBufferWindow)\\\u003cB\\\u003e | [slideTo](/jvm/api_docs/java/org/tensorflow/ndarray/buffer/DataBufferWindow#slideTo(long))(long index) Moves the window at the given position in the original buffer. |\n\nPublic Methods\n--------------\n\n#### public final B\n**buffer**\n()\n\nReturns the buffer backing this window.\n\nEach window instance has it's own buffer providing a view onto the original\n[DataBuffer](/jvm/api_docs/java/org/tensorflow/ndarray/buffer/DataBuffer). The buffers are mutated when the window slides to different offsets.\nFor example:\n\n IntDataBuffer buffer = DataBuffers.of(0, 1, 2, 3);\n DataBufferWindow\u003cIntDataBuffer\u003e window = buffer.window(0, 2);\n\n IntDataBuffer windowBuffer = window.buffer();\n assertEquals(0, windowBuffer.getInt(0));\n assertEquals(1, windowBuffer.getInt(1));\n\n window.slideTo(2);\n assertEquals(2, windowBuffer.getInt(0));\n assertEquals(3, windowBuffer.getInt(1));\n assertSame(windowBuffer, window.buffer());\n \n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n##### Returns\n\n- this window's buffer \n\n#### public final long\n**offset**\n()\n\nReturns the current offset of this window in the original buffer. \n\n#### public final long\n**size**\n()\n\nReturns the size of this buffer window. \n\n#### public final [DataBufferWindow](/jvm/api_docs/java/org/tensorflow/ndarray/buffer/DataBufferWindow)\\\u003cB\\\u003e\n**slide**\n(long step)\n\nMoves the window of `step` elements in the original buffer.\n\nThe size of the window remains the same and its offset is set to `offset() + step`.\nIf `step` is positive, then the window will slide forward. If it is negative, it will\nslide backward.\n\n\u003cbr /\u003e\n\n##### Parameters\n\n| step | value to add to the current offset of this window |\n|------|---------------------------------------------------|\n\n##### Returns\n\n- this instance \n\n#### public final [DataBufferWindow](/jvm/api_docs/java/org/tensorflow/ndarray/buffer/DataBufferWindow)\\\u003cB\\\u003e\n**slideTo**\n(long index)\n\nMoves the window at the given position in the original buffer.\n\nThe size of the window remains the same and its offset is set to `index`, so that\naccessing the value of [buffer()](/jvm/api_docs/java/org/tensorflow/ndarray/buffer/DataBufferWindow#buffer()) at index `x` will return the value at\n`index + x` in the original buffer.\n\n\u003cbr /\u003e\n\n##### Parameters\n\n| index | new offset for this window |\n|-------|----------------------------|\n\n##### Returns\n\n- this instance"]]
