Example usage for org.apache.spark.unsafe.memory MemoryBlock getBaseObject

Introduction

In this page you can find the example usage for org.apache.spark.unsafe.memory MemoryBlock getBaseObject.

Prototype

public final Object getBaseObject() 

Source Link

Usage

From source file:edu.ucla.cs.wis.bigdatalog.spark.storage.map.BytesToBytesMapMemoryManager.java

License:Apache License

/**
 * Get the page associated with an address encoded by
 * {@link org.apache.spark.memory.TaskMemoryManager#encodePageNumberAndOffset(MemoryBlock, long)}
 *///  www.  j av a2 s. co m
public Object getPage(long pagePlusOffsetAddress) {
    final int pageNumber = decodePageNumber(pagePlusOffsetAddress);
    assert (pageNumber >= 0 && pageNumber < PAGE_TABLE_SIZE);
    final MemoryBlock page = pageTable[pageNumber];
    assert (page != null);
    assert (page.getBaseObject() != null);
    return page.getBaseObject();
}

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