Module com.carrotsearch.hppc

Package com.carrotsearch.hppc

Interface ArraySizingStrategy

All Superinterfaces:

Accountable

All Known Implementing Classes:

BoundedProportionalArraySizingStrategy

public interface ArraySizingStrategy
extends Accountable

Resizing (growth) strategy for array-backed buffers.

Method Summary

Modifier and Type	Method	Description
int	grow(int currentBufferLength, int elementsCount, int expectedAdditions)

Methods inherited from interface com.carrotsearch.hppc.Accountable

ramBytesAllocated, ramBytesUsed

Method Details

grow

int grow(int currentBufferLength,
 int elementsCount,
 int expectedAdditions)
  throws BufferAllocationException

Parameters:

currentBufferLength - Current size of the array (buffer). This number should comply with the strategy's policies (it is a result of initial rounding or further growCalls). It can also be zero, indicating the growth from an empty buffer.

elementsCount - Number of elements stored in the buffer.

expectedAdditions - Expected number of additions (resize hint).

Returns:

Must return a new size at least as big as to hold elementsCount + expectedAdditions.

Throws:

BufferAllocationException - If the sizing strategy cannot grow the buffer (for example due to constraints or memory limits).