## Uses of Class
org.eclipse.rdf4j.common.iteration.AbstractCloseableIteration

- Packages that use AbstractCloseableIteration
  Package | Description
  --- | ---
  org.eclipse.rdf4j.common.concurrent.locks | Package offering various locking scheme implementations.
  org.eclipse.rdf4j.common.iteration |
  org.eclipse.rdf4j.federated.evaluation.concurrent |
  org.eclipse.rdf4j.federated.evaluation.iterator |
  org.eclipse.rdf4j.federated.evaluation.join |
  org.eclipse.rdf4j.federated.evaluation.union |
  org.eclipse.rdf4j.query.algebra.evaluation.federation |
  org.eclipse.rdf4j.query.algebra.evaluation.iterator |
  org.eclipse.rdf4j.query.algebra.evaluation.limited.iterator |
  org.eclipse.rdf4j.query.impl |
  org.eclipse.rdf4j.query.resultio.helpers |
  org.eclipse.rdf4j.repository | The Repository API: the main API for accessing rdf databases and SPARQL endpoints.
  org.eclipse.rdf4j.repository.sparql.federation |
  org.eclipse.rdf4j.repository.sparql.query |
  org.eclipse.rdf4j.sail.base | Base functionality for Sail implementations that require multi-versioned concurrency control (MVCC).
  org.eclipse.rdf4j.sail.federation.evaluation |
  org.eclipse.rdf4j.sail.memory.model |

- - ### Uses of AbstractCloseableIteration in org.eclipse.rdf4j.common.concurrent.locks

    Subclasses of AbstractCloseableIteration in org.eclipse.rdf4j.common.concurrent.locks
    Modifier and Type | Class and Description
    --- | ---
    `class` | `LockingIteration<E,X extends Exception>` An Iteration that holds on to a lock until the Iteration is closed.

  - ### Uses of AbstractCloseableIteration in org.eclipse.rdf4j.common.iteration

    Subclasses of AbstractCloseableIteration in org.eclipse.rdf4j.common.iteration
    Modifier and Type | Class and Description
    --- | ---
    `class` | `CloseableIterationBase<E,X extends Exception>` Deprecated. since 2.0. Use `AbstractCloseableIteration` instead.
    `class` | `CloseableIteratorIteration<E,X extends Exception>` An Iteration that can convert an `Iterator` to a `CloseableIteration`.
    `class` | `ConvertingIteration<S,T,X extends Exception>` A CloseableIteration that converts an iteration over objects of type `S` (the source type) to an iteration over objects of type `T` (the target type).
    `class` | `DelayedIteration<E,X extends Exception>` An iteration that delays the creation of the underlying iteration until it is being accessed.
    `class` | `DistinctIteration<E,X extends Exception>` An Iteration that filters any duplicate elements from an underlying iterator.
    `class` | `EmptyIteration<E,X extends Exception>` An iterator that does not contain any elements.
    `class` | `ExceptionConvertingIteration<E,X extends Exception>` A CloseableIteration that converts an arbitrary iteration to an iteration with exceptions of type `X`.
    `class` | `FilterIteration<E,X extends Exception>` A CloseableIteration that wraps another Iteration, applying a filter on the objects that are returned.
    `class` | `IntersectIteration<E,X extends Exception>` An Iteration that returns the intersection of the results of two Iterations.
    `class` | `IterationWrapper<E,X extends Exception>` Abstract superclass for Iterations that wrap other Iterations.
    `class` | `LimitIteration<E,X extends Exception>` An Iteration that limits the amount of elements that it returns from an underlying Iteration to a fixed amount.
    `class` | `LookAheadIteration<E,X extends Exception>` An Iteration that looks one element ahead, if necessary, to handle calls to `LookAheadIteration.hasNext()`.
    `class` | `MinusIteration<E,X extends Exception>` An Iteration that returns the results of an Iteration (the left argument) minus the results of another Iteration (the right argument).
    `class` | `OffsetIteration<E,X extends Exception>` An Iteration that skips the first `offset` elements from an underlying Iteration.
    `class` | `QueueIteration<E,T extends Exception>` Makes working with a queue easier by adding the methods `QueueIteration.done()` and `QueueIteration.toss(Exception)` and after converting the Exception to the required type using `QueueIteration.convert(Exception)`.
    `class` | `ReducedIteration<E,X extends Exception>` Removes consecutive duplicates from the object stream.
    `class` | `SilentIteration<T,E extends Exception>` An `IterationWrapper` that silently ignores any errors that occur during processing.
    `class` | `SingletonIteration<E,X extends Exception>` An Iteration that contains exactly one element.
    `class` | `TimeLimitIteration<E,X extends Exception>`
    `class` | `UnionIteration<E,X extends Exception>` An Iteration that returns the bag union of the results of a number of Iterations.

  - ### Uses of AbstractCloseableIteration in org.eclipse.rdf4j.federated.evaluation.concurrent

    Subclasses of AbstractCloseableIteration in org.eclipse.rdf4j.federated.evaluation.concurrent
    Modifier and Type | Class and Description
    --- | ---
    `class` | `FedXQueueCursor<T>` Specialized variants of `QueueCursor` which avoids converting any exception if it is already of type`QueryEvaluationException`.
    `class` | `ParallelExecutorBase<T>` Base class for common parallel executors such as `JoinExecutorBase` and `UnionExecutorBase`.
    `class` | `ParallelServiceExecutor` Parallel executor for `FedXService` nodes, which wrap SERVICE expressions.

  - ### Uses of AbstractCloseableIteration in org.eclipse.rdf4j.federated.evaluation.iterator

    Subclasses of AbstractCloseableIteration in org.eclipse.rdf4j.federated.evaluation.iterator
    Modifier and Type | Class and Description
    --- | ---
    `class` | `BoundJoinConversionIteration` Inserts original bindings into the result.
    `class` | `BoundJoinVALUESConversionIteration` Inserts original bindings into the result.
    `class` | `CloseDependentConnectionIteration<T>` A wrapping iteration that attempts to close the dependent `RepositoryConnection` after consumption.
    `class` | `FilteringInsertBindingsIteration` Filters iteration according to specified filterExpr and inserts original bindings into filtered results.
    `class` | `FilteringIteration` Filters iteration according to specified filterExpr.
    `class` | `GraphToBindingSetConversionIteration` Converts graph results into a binding set iteration
    `class` | `GroupedCheckConversionIteration` Retrieves the original bindings for the particular result
    `class` | `IndependentJoingroupBindingsIteration` Inserts original bindings into the result.
    `class` | `IndependentJoingroupBindingsIteration2` Inserts original bindings into the result.
    `class` | `IndependentJoingroupBindingsIteration3` Inserts original bindings into the result.
    `class` | `InsertBindingsIteration` Inserts original bindings into the result.
    `class` | `PrintingIteration` Print the bindings of the inner iteration to stdout, however maintain a copy, which is accessible through this iteration.
    `class` | `QueryResultIteration` An iteration which wraps the final result and in case of exceptions aborts query evaluation for the corresponding query in fedx (potentially subqueries are still running, and jobs are scheduled).
    `class` | `RepositoryExceptionConvertingIteration<T>` Convenience iteration to convert `RepositoryResult` exceptions to `QueryEvaluationException`.
    `class` | `SingleBindingSetIteration` Represents an iteration that contains only a single binding set.
    `class` | `StatementConversionIteration` Converts Statement iteration (i.e.
    `class` | `StopRemainingExecutionsOnCloseIteration` A wrapping iteration that attempts to close all running scheduled `Future`s for the given query evaluation.

  - ### Uses of AbstractCloseableIteration in org.eclipse.rdf4j.federated.evaluation.join

    Subclasses of AbstractCloseableIteration in org.eclipse.rdf4j.federated.evaluation.join
    Modifier and Type | Class and Description
    --- | ---
    `class` | `ControlledWorkerBoundJoin` Execute the nested loop join in an asynchronous fashion, using grouped requests, i.e.
    `class` | `ControlledWorkerJoin` Execute the nested loop join in an asynchronous fashion, i.e.
    `class` | `ControlledWorkerLeftJoin` Execute the nested loop join in an asynchronous fashion, i.e.
    `class` | `HashJoin` Operator for a hash join of tuple expressions.
    `class` | `SynchronousBoundJoin` Execute the nested loop join in a synchronous fashion, using grouped requests, i.e.
    `class` | `SynchronousJoin` Execute the nested loop join in a synchronous fashion, i.e.

  - ### Uses of AbstractCloseableIteration in org.eclipse.rdf4j.federated.evaluation.union

    Subclasses of AbstractCloseableIteration in org.eclipse.rdf4j.federated.evaluation.union
    Modifier and Type | Class and Description
    --- | ---
    `class` | `ControlledWorkerUnion<T>` Execution of union tasks with `ControlledWorkerScheduler`.
    `class` | `SynchronousWorkerUnion<T>` Synchronous execution of union tasks, i.e.
    `class` | `UnionExecutorBase<T>` Base class for any parallel union executor.
    `class` | `WorkerUnionBase<T>` Base class for worker unions providing convenience functions to add tasks.

  - ### Uses of AbstractCloseableIteration in org.eclipse.rdf4j.query.algebra.evaluation.federation

    Subclasses of AbstractCloseableIteration in org.eclipse.rdf4j.query.algebra.evaluation.federation
    Modifier and Type | Class and Description
    --- | ---
    `class` | `ServiceCrossProductIteration` Deprecated.
    `class` | `ServiceJoinIterator` Iterator for efficient SERVICE evaluation (vectored).

  - ### Uses of AbstractCloseableIteration in org.eclipse.rdf4j.query.algebra.evaluation.iterator

    Subclasses of AbstractCloseableIteration in org.eclipse.rdf4j.query.algebra.evaluation.iterator
    Modifier and Type | Class and Description
    --- | ---
    `class` | `BadlyDesignedLeftJoinIterator`
    `class` | `BottomUpJoinIterator` Deprecated. replaced by HashJoinIteration
    `class` | `CompatibleBindingSetFilter` Deprecated.
    `class` | `CrossProductIteration` Iteration which forms the cross product of a list of materialized input bindings with each result obtained from the inner iteration.
    `class` | `DescribeIteration` Iteration that implements a simplified version of Symmetric Concise Bounded Description (omitting reified statements).
    `class` | `ExtensionIterator`
    `class` | `FilterIterator`
    `class` | `GroupIterator`
    `class` | `HashJoinIteration` Generic hash join implementation suitable for use by Sail implementations.
    `class` | `JoinIterator` Interleaved join iterator.
    `class` | `LeftJoinIterator`
    `class` | `MultiProjectionIterator`
    `class` | `OrderIterator` Sorts the input and optionally applies limit and distinct.
    `class` | `PathIteration`
    `class` | `ProjectionIterator`
    `class` | `QueryContextIteration` Makes a `QueryContext` available during iteration.
    `class` | `SPARQLMinusIteration<X extends Exception>` An Iteration that returns the results of an Iteration (the left argument) MINUS any results that are compatible with results of another Iteration (the right argument) or that have no shared variables.
    `class` | `ZeroLengthPathIteration`

  - ### Uses of AbstractCloseableIteration in org.eclipse.rdf4j.query.algebra.evaluation.limited.iterator

    Subclasses of AbstractCloseableIteration in org.eclipse.rdf4j.query.algebra.evaluation.limited.iterator
    Modifier and Type | Class and Description
    --- | ---
    `class` | `LimitedSizeBottomUpJoinIterator` Deprecated. replaced by LimitedSizeHashJoinIteration
    `class` | `LimitedSizeDistinctIteration`
    `class` | `LimitedSizeHashJoinIteration`
    `class` | `LimitedSizeIntersectIteration`
    `class` | `LimitedSizeOrderIteration`
    `class` | `LimitedSizePathIterator`
    `class` | `LimitedSizeSPARQLMinusIteration`
    `class` | `LimitedSizeZeroLengthPathIteration`

  - ### Uses of AbstractCloseableIteration in org.eclipse.rdf4j.query.impl

    Subclasses of AbstractCloseableIteration in org.eclipse.rdf4j.query.impl
    Modifier and Type | Class and Description
    --- | ---
    `protected class` | `AbstractParserQuery.QueryInterruptIteration`
    `class` | `BackgroundGraphResult` Provides concurrent access to statements as they are being parsed when instances of this class are run as Threads.
    `class` | `GraphQueryResultImpl` Deprecated. since 2.0. Use `IteratingGraphQueryResult` instead.
    `class` | `IteratingGraphQueryResult` An iterating implementation of the `GraphQueryResult` interface.
    `class` | `IteratingTupleQueryResult` An iterating implementation of the `TupleQueryResult` interface.
    `class` | `QueueCursor<E>` Makes working with a queue easier by adding the methods `QueueIteration.done()` and `QueueIteration.toss(Exception)` and automatically converting the exception into a QueryEvaluationException with an appropriate stack trace.
    `class` | `TupleQueryResultImpl` Deprecated. since 2.0. Use `IteratingTupleQueryResult` instead.

  - ### Uses of AbstractCloseableIteration in org.eclipse.rdf4j.query.resultio.helpers

    Subclasses of AbstractCloseableIteration in org.eclipse.rdf4j.query.resultio.helpers
    Modifier and Type | Class and Description
    --- | ---
    `class` | `BackgroundTupleResult` Provides concurrent access to tuple results as they are being parsed.

  - ### Uses of AbstractCloseableIteration in org.eclipse.rdf4j.repository

    Subclasses of AbstractCloseableIteration in org.eclipse.rdf4j.repository
    Modifier and Type | Class and Description
    --- | ---
    `class` | `RepositoryResult<T>` A RepositoryResult is a result collection of objects (for example `Statement` , `Namespace`, or `Resource` objects) that can be iterated over.

  - ### Uses of AbstractCloseableIteration in org.eclipse.rdf4j.repository.sparql.federation

    Subclasses of AbstractCloseableIteration in org.eclipse.rdf4j.repository.sparql.federation
    Modifier and Type | Class and Description
    --- | ---
    `class` | `CollectionIteration<E,X extends Exception>` An iteration to access a materialized `Collection` of BindingSets.
    `class` | `JoinExecutorBase<T>` Base class for any join parallel join executor.
    `class` | `ServiceJoinConversionIteration` Inserts original bindings into the result, uses ?__rowIdx to resolve original bindings.
    `class` | `SPARQLCrossProductIteration` Iteration which forms the cross product of a list of materialized input bindings with each result obtained from the inner iteration.

  - ### Uses of AbstractCloseableIteration in org.eclipse.rdf4j.repository.sparql.query

    Subclasses of AbstractCloseableIteration in org.eclipse.rdf4j.repository.sparql.query
    Modifier and Type | Class and Description
    --- | ---
    `class` | `InsertBindingSetCursor` Adds more bindings to each of the results.

  - ### Uses of AbstractCloseableIteration in org.eclipse.rdf4j.sail.base

    Subclasses of AbstractCloseableIteration in org.eclipse.rdf4j.sail.base
    Modifier and Type | Class and Description
    --- | ---
    `class` | `DistinctModelReducingUnionIteration` An Iteration that takes two source.

  - ### Uses of AbstractCloseableIteration in org.eclipse.rdf4j.sail.federation.evaluation

    Subclasses of AbstractCloseableIteration in org.eclipse.rdf4j.sail.federation.evaluation
    Modifier and Type | Class and Description
    --- | ---
    `class` | `AlternativeCursor<E>` If the primary cursor is empty, use the alternative cursor.
    `class` | `FilterCursor` Provides a convenient constructor for `FilterIterator` using the condition.
    `class` | `ParallelJoinCursor` Iterate the left side and evaluate the right side in separate thread, only iterate the right side in the controlling thread.
    `class` | `ParallelLeftJoinCursor` Transform the condition into a filter and the right side into an `AlternativeCursor`, then evaluate as a `ParallelJoinCursor`.

  - ### Uses of AbstractCloseableIteration in org.eclipse.rdf4j.sail.memory.model

    Subclasses of AbstractCloseableIteration in org.eclipse.rdf4j.sail.memory.model
    Modifier and Type | Class and Description
    --- | ---
    `class` | `MemStatementIterator<X extends Exception>` A StatementIterator that can iterate over a list of Statement objects.

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