Package org.apache.flink.table.runtime.operators.aggregate

Class BytesHashMapSpillMemorySegmentPool

java.lang.Object
org.apache.flink.table.runtime.operators.aggregate.BytesHashMapSpillMemorySegmentPool
All Implemented Interfaces:
org.apache.flink.core.memory.MemorySegmentSource, MemorySegmentPool
public class BytesHashMapSpillMemorySegmentPool extends Object implements MemorySegmentPool
MemorySegmentPool for BytesHashMap to fall back to sort agg. nextSegment() not remove segment from segments, just get from segments.

  • Constructor Details

    • BytesHashMapSpillMemorySegmentPool

      public BytesHashMapSpillMemorySegmentPool(List<org.apache.flink.core.memory.MemorySegment> memorySegments)

  • Method Details

    • nextSegment

      public org.apache.flink.core.memory.MemorySegment nextSegment()
      Specified by:
      nextSegment in interface org.apache.flink.core.memory.MemorySegmentSource

    • returnAll

      public void returnAll(List<org.apache.flink.core.memory.MemorySegment> memory)
      Description copied from interface: MemorySegmentPool
      Return all pages back into this pool.
      Specified by:
      returnAll in interface MemorySegmentPool
      Parameters:
      memory - the pages which want to be returned.

    • freePages

      public int freePages()
      Specified by:
      freePages in interface MemorySegmentPool
      Returns:
      Free page number.

    • pageSize

      public int pageSize()
      Description copied from interface: MemorySegmentPool
      Get the page size of each page this pool holds.
      Specified by:
      pageSize in interface MemorySegmentPool
      Returns:
      the page size