Packages

final class StagedPools extends StorageProvider

A group of StoragePool, organized in stages.

Example

val pool = StagedPools().directStage(100, 5, true)    // 1st stage
                        .directStage(1000, 10, false) // 2nd stage
                        .defaultAllocateHeap()        // default handler
                        .build()

val storage = pool.getStorage(512)
val buffer = new CircularBuffer(storage)

This code creates a new group of staged pools and uses it to create a CircularBuffer with a capacity of at least 512 bytes.

When getStorage(capacity) is called:

  • If capacity <= 100, a storage from the 1st stage is returned. Up to 5 storages are kept in the pool, but more storages can be created as needed (isMoreAllocationAllowed=true).
  • If capacity <= 1000, a storage from the 2nd stage is returned. Up to 10 storages are kept in the pool. If 10 storages from this stage are already being used, and more storages are requested, an exception is thrown.
  • If capacity > 1000, the default handler is called. In this case, defaultAllocateHeap allocates a new heap buffer of the requested capacity.
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  10. def getPool(minCapacity: Int): Option[StoragePool]
  11. def getStorage(minCapacity: Int): BytesStorage

    returns

    a storage with a capacity of at least minCapacity

    Definition Classes
    StagedPools → StorageProvider
  12. def hashCode(): Int
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Inherited from StorageProvider

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