Class AttributeStreamBase

java.lang.Object
com.esri.core.geometry.AttributeStreamBase
Direct Known Subclasses:
AttributeStreamOfDbl, AttributeStreamOfFloat, AttributeStreamOfInt16, AttributeStreamOfInt32, AttributeStreamOfInt64, AttributeStreamOfInt8
abstract class AttributeStreamBase extends Object
Base class for AttributeStream instances.

  • Field Details

    • m_bLockedInSize

      protected boolean m_bLockedInSize

    • m_bReadonly

      protected boolean m_bReadonly

  • Constructor Details

    • AttributeStreamBase

      public AttributeStreamBase()

  • Method Details

    • virtualSize

      public abstract int virtualSize()
      Returns the number of elements in the stream.

    • estimateMemorySize

      public abstract long estimateMemorySize()
      Returns an estimate of this object size in bytes.
      Returns:
      Returns an estimate of this object size in bytes.

    • getPersistence

      public abstract int getPersistence()
      Returns the Persistence type of the stream.

    • readAsDbl

      public abstract double readAsDbl(int offset)
      Reads given element and returns it as double.

    • writeAsDbl

      public abstract void writeAsDbl(int offset, double d)
      Writes given element as double. The double is cast to the internal representation (truncated when int).

    • readAsInt

      public abstract int readAsInt(int offset)
      Reads given element and returns it as int (truncated if double).

    • writeAsInt

      public abstract void writeAsInt(int offset, int d)
      Writes given element as int. The int is cast to the internal representation.

    • readAsInt64

      public abstract long readAsInt64(int offset)
      Reads given element and returns it as int (truncated if double).

    • writeAsInt64

      public abstract void writeAsInt64(int offset, long d)
      Writes given element as int. The int is cast to the internal representation.

    • resize

      public abstract void resize(int newSize, double defaultValue)
      Resizes the AttributeStream to the new size.

    • resize

      public abstract void resize(int newSize)
      Resizes the AttributeStream to the new size.

    • resizePreserveCapacity

      public abstract void resizePreserveCapacity(int newSize)
      Resizes the AttributeStream to the new size. Does not change the capacity of the stream.

    • clear

      void clear(boolean bFreeMemory)
      Same as resize(0)

    • addRange

      public abstract void addRange(AttributeStreamBase src, int srcStart, int count, boolean bForward, int stride)
      Adds a range of elements from the source stream. The streams must be of the same type.
      Parameters:
      src - The source stream to read elements from.
      srcStart - The index of the element in the source stream to start reading from.
      count - The number of elements to add.
      bForward - True if adding the elements in order of the incoming source stream. False if adding the elements in reverse.
      stride - The number of elements to be grouped together if adding the elements in reverse.

    • insertRange

      public abstract void insertRange(int start, AttributeStreamBase src, int srcStart, int count, boolean bForward, int stride, int validSize)
      Inserts a range of elements from the source stream. The streams must be of the same type.
      Parameters:
      start - The index where to start the insert.
      src - The source stream to read elements from.
      srcStart - The index of the element in the source stream to start reading from.
      count - The number of elements to read from the source stream.
      validSize - The number of valid elements in this stream.

    • insertRange

      public abstract void insertRange(int start, double value, int count, int validSize)
      Inserts a range of elements of the given value.
      Parameters:
      start - The index where to start the insert.
      value - The value to be inserted.
      count - The number of elements to be inserted.
      validSize - The number of valid elements in this stream.

    • insertAttributes

      public abstract void insertAttributes(int start, Point pt, int semantics, int validSize)
      Inserts the attributes of a given semantics from a Point geometry.
      Parameters:
      start - The index where to start the insert.
      pt - The Point geometry holding the attributes to be inserted.
      semantics - The attribute semantics that are being inserted.
      validSize - The number of valid elements in this stream.

    • setRange

      public abstract void setRange(double value, int start, int count)
      Sets a range of values to given value.
      Parameters:
      value - The value to set stream elements to.
      start - The index of the element to start writing to.
      count - The number of elements to set.

    • writeRange

      public abstract void writeRange(int startElement, int count, AttributeStreamBase src, int sourceStart, boolean bForward, int stride)
      Adds a range of elements from the source byte buffer. This stream is resized automatically to accomodate required number of elements.
      Parameters:
      startElement - the index of the element in this stream to start setting elements from.
      count - The number of AttributeStream elements to read.
      src - The source ByteBuffer to read elements from.
      sourceStart - The offset from the start of the ByteBuffer in bytes.
      bForward - When False, the source is written in reversed order.
      stride - Used for reversed writing only to indicate the unit of writing. elements inside a stride are not reversed. Only the strides are reversed.

    • writeRange

      public abstract void writeRange(int startElement, int count, ByteBuffer src, int offsetBytes, boolean bForward)
      Adds a range of elements from the source byte buffer. The stream is resized automatically to accomodate required number of elements.
      Parameters:
      startElement - the index of the element in this stream to start setting elements from.
      count - The number of AttributeStream elements to read.
      src - The source ByteBuffer to read elements from.
      offsetBytes - The offset from the start of the ByteBuffer in bytes.

    • readRange

      public abstract void readRange(int srcStart, int count, ByteBuffer dst, int dstOffsetBytes, boolean bForward)
      Write a range of elements to the source byte buffer.
      Parameters:
      srcStart - The element index to start writing from.
      count - The number of AttributeStream elements to write.
      dst - The destination ByteBuffer. The buffer must be large enough or it will throw.
      dstOffsetBytes - The offset in the destination ByteBuffer to start write elements from.

    • eraseRange

      public abstract void eraseRange(int index, int count, int validSize)
      Erases a range from the buffer and defragments the result.
      Parameters:
      index - The index in this stream where the erasing starts.
      count - The number of elements to be erased.
      validSize - The number of valid elements in this stream.

    • reverseRange

      public abstract void reverseRange(int index, int count, int stride)
      Reverses a range from the buffer.
      Parameters:
      index - The index in this stream where the reversing starts.
      count - The number of elements to be reversed.
      stride - The number of elements to be grouped together when doing the reverse.

    • createByteStream

      public static AttributeStreamBase createByteStream(int size)
      Creates a new attribute stream for storing bytes.
      Parameters:
      size - The number of elements in the stream.

    • createByteStream

      public static AttributeStreamBase createByteStream(int size, byte defaultValue)
      Creates a new attribute stream for storing bytes.
      Parameters:
      size - The number of elements in the stream.
      defaultValue - The default value to fill the stream with.

    • createDoubleStream

      public static AttributeStreamBase createDoubleStream(int size)
      Creates a new attribute stream for storing doubles.
      Parameters:
      size - The number of elements in the stream.

    • createDoubleStream

      public static AttributeStreamBase createDoubleStream(int size, double defaultValue)
      Creates a new attribute stream for storing doubles.
      Parameters:
      size - The number of elements in the stream.
      defaultValue - The default value to fill the stream with.

    • restrictedClone

      public abstract AttributeStreamBase restrictedClone(int maxsize)
      Creats a copy of the stream that contains upto maxsize elements.

    • setReadonly

      public void setReadonly()
      Makes the stream to be readonly. Any operation that changes the content or size of the stream will throw.

    • isReadonly

      public boolean isReadonly()

    • lockSize

      public void lockSize()
      Lock the size of the stream. Any operation that changes the size of the stream will throw.

    • isLockedSize

      public boolean isLockedSize()

    • createAttributeStreamWithPersistence

      public static AttributeStreamBase createAttributeStreamWithPersistence(int persistence, int size)
      Creates a new attribute stream of given persistence type and size.
      Parameters:
      persistence - The persistence type of the stream (see VertexDescription).
      size - The number of elements (floats, doubles, or 32 bit integers) of the given type in the stream.

    • createAttributeStreamWithPersistence

      public static AttributeStreamBase createAttributeStreamWithPersistence(int persistence, int size, double defaultValue)
      Creates a new attribute stream of given persistence type and size.
      Parameters:
      persistence - The persistence type of the stream (see VertexDescription).
      size - The number of elements (floats, doubles, or 32 bit integers) of the given type in the stream.
      defaultValue - The default value to fill the stream with.

    • createAttributeStreamWithSemantics

      public static AttributeStreamBase createAttributeStreamWithSemantics(int semantics, int vertexCount)
      Creates a new attribute stream for the given semantics and vertex count.
      Parameters:
      semantics - The semantics of the attribute (see VertexDescription).
      vertexCount - The number of vertices in the geometry. The actual number of elements in the stream is vertexCount * ncomponents.

    • createIndexStream

      public static AttributeStreamBase createIndexStream(int size)
      Creates a new attribute stream for storing vertex indices.
      Parameters:
      size - The number of elements in the stream.

    • createIndexStream

      public static AttributeStreamBase createIndexStream(int size, int defaultValue)
      Creates a new attribute stream for storing vertex indices.
      Parameters:
      size - The number of elements in the stream.
      defaultValue - The default value to fill the stream with.

    • calculateHashImpl

      public abstract int calculateHashImpl(int hashCode, int start, int end)

    • equals

      public abstract boolean equals(AttributeStreamBase other, int start, int end)