org.apache.cassandra.cache

Interface IMeasurableMemory

All Known Subinterfaces:

CellName, Composite

All Known Implementing Classes:

AbstractComposite, AbstractNativeCell, BoundedComposite, CacheKey, ClockAndCount, ColumnIdentifier, CompoundComposite, CompoundDenseCellName, CompoundSparseCellName, CompoundSparseCellName.WithCollection, CounterCacheKey, DeletionInfo, DeletionTime, KeyCacheKey, NativeCell, NativeCounterCell, NativeDeletedCell, NativeExpiringCell, RangeTombstoneList, RowCacheKey, RowIndexEntry, SimpleComposite, SimpleDenseCellName, SimpleSparseCellName, SimpleSparseInternedCellName

public interface IMeasurableMemory

Method Summary

Modifier and Type	Method and Description
long	unsharedHeapSize()

Method Detail

unsharedHeapSize

long unsharedHeapSize()

Returns:

the amount of on-heap memory retained by the object that might be reclaimed if the object were reclaimed, i.e. it should try to exclude globally cached data where possible, or counting portions of arrays that are referenced by the object but used by other objects only (e.g. slabbed byte-buffers), etc.