org.apache.lucene.queryparser.flexible.core.processors

## Class QueryNodeProcessorPipeline

- java.lang.Object
- - org.apache.lucene.queryparser.flexible.core.processors.QueryNodeProcessorPipeline

- All Implemented Interfaces:
    Iterable<QueryNodeProcessor>, Collection<QueryNodeProcessor>, List<QueryNodeProcessor>, QueryNodeProcessor
  Direct Known Subclasses:
    StandardQueryNodeProcessorPipeline

      public class QueryNodeProcessorPipeline
      extends Object
      implements QueryNodeProcessor, List<QueryNodeProcessor>

  A `QueryNodeProcessorPipeline` class should be used to build a query node processor pipeline. When a query node tree is processed using this class, it passes the query node tree to each processor on the pipeline and the result from each processor is passed to the next one, always following the order the processors were on the pipeline. When a `QueryConfigHandler` object is set on a `QueryNodeProcessorPipeline`, it also takes care of setting this `QueryConfigHandler` on all processor on pipeline.

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `QueryNodeProcessorPipeline()` Constructs an empty query node processor pipeline.
    `QueryNodeProcessorPipeline(QueryConfigHandler queryConfigHandler)` Constructs with a `QueryConfigHandler` object.

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `add(int index, QueryNodeProcessor processor)`
    `boolean` | `add(QueryNodeProcessor processor)`
    `boolean` | `addAll(Collection<? extends QueryNodeProcessor> c)`
    `boolean` | `addAll(int index, Collection<? extends QueryNodeProcessor> c)`
    `void` | `clear()`
    `boolean` | `contains(Object o)`
    `boolean` | `containsAll(Collection<?> c)`
    `QueryNodeProcessor` | `get(int index)`
    `QueryConfigHandler` | `getQueryConfigHandler()` For reference about this method check: `QueryNodeProcessor.getQueryConfigHandler()`.
    `int` | `indexOf(Object o)`
    `boolean` | `isEmpty()`
    `Iterator<QueryNodeProcessor>` | `iterator()`
    `int` | `lastIndexOf(Object o)`
    `ListIterator<QueryNodeProcessor>` | `listIterator()`
    `ListIterator<QueryNodeProcessor>` | `listIterator(int index)`
    `QueryNode` | `process(QueryNode queryTree)` For reference about this method check: `QueryNodeProcessor.process(QueryNode)`.
    `QueryNodeProcessor` | `remove(int index)`
    `boolean` | `remove(Object o)`
    `boolean` | `removeAll(Collection<?> c)`
    `boolean` | `retainAll(Collection<?> c)`
    `QueryNodeProcessor` | `set(int index, QueryNodeProcessor processor)`
    `void` | `setQueryConfigHandler(QueryConfigHandler queryConfigHandler)` For reference about this method check: `QueryNodeProcessor.setQueryConfigHandler(QueryConfigHandler)`.
    `int` | `size()`
    `List<QueryNodeProcessor>` | `subList(int fromIndex, int toIndex)`
    `Object[]` | `toArray()`
    `<T> T[]` | `toArray(T[] array)`

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

    - ### Methods inherited from interface java.util.List

      `equals, hashCode`

- - ### Constructor Detail

    - #### QueryNodeProcessorPipeline

          public QueryNodeProcessorPipeline()

      Constructs an empty query node processor pipeline.

    - #### QueryNodeProcessorPipeline

          public QueryNodeProcessorPipeline(QueryConfigHandler queryConfigHandler)

      Constructs with a `QueryConfigHandler` object.

  - ### Method Detail

    - #### getQueryConfigHandler

          public QueryConfigHandler getQueryConfigHandler()

      For reference about this method check: `QueryNodeProcessor.getQueryConfigHandler()`.
      Specified by:
        `getQueryConfigHandler` in interface `QueryNodeProcessor`
      Returns:
        QueryConfigHandler the query configuration handler to be set.
      See Also:
        `QueryNodeProcessor.setQueryConfigHandler(QueryConfigHandler)`, `QueryConfigHandler`

    - #### process

          public QueryNode process(QueryNode queryTree)
                            throws QueryNodeException

      For reference about this method check: `QueryNodeProcessor.process(QueryNode)`.
      Specified by:
        `process` in interface `QueryNodeProcessor`
      Parameters:
        `queryTree` - the query node tree to be processed
      Returns:
        the processed query tree
      Throws:
        `QueryNodeException` - if something goes wrong during the query node processing
      See Also:
        `QueryNode`

    - #### setQueryConfigHandler

          public void setQueryConfigHandler(QueryConfigHandler queryConfigHandler)

      For reference about this method check: `QueryNodeProcessor.setQueryConfigHandler(QueryConfigHandler)`.
      Specified by:
        `setQueryConfigHandler` in interface `QueryNodeProcessor`
      Parameters:
        `queryConfigHandler` - the query configuration handler to be set.
      See Also:
        `QueryNodeProcessor.getQueryConfigHandler()`, `QueryConfigHandler`

    - #### add

          public boolean add(QueryNodeProcessor processor)

      Specified by:
        `add` in interface `Collection<QueryNodeProcessor>`
      Specified by:
        `add` in interface `List<QueryNodeProcessor>`
      See Also:
        `List.add(Object)`

    - #### add

          public void add(int index,
                 QueryNodeProcessor processor)

      Specified by:
        `add` in interface `List<QueryNodeProcessor>`
      See Also:
        `List.add(int, Object)`

    - #### addAll

          public boolean addAll(Collection<? extends QueryNodeProcessor> c)

      Specified by:
        `addAll` in interface `Collection<QueryNodeProcessor>`
      Specified by:
        `addAll` in interface `List<QueryNodeProcessor>`
      See Also:
        `List.addAll(Collection)`

    - #### addAll

          public boolean addAll(int index,
                       Collection<? extends QueryNodeProcessor> c)

      Specified by:
        `addAll` in interface `List<QueryNodeProcessor>`
      See Also:
        `List.addAll(int, Collection)`

    - #### clear

          public void clear()

      Specified by:
        `clear` in interface `Collection<QueryNodeProcessor>`
      Specified by:
        `clear` in interface `List<QueryNodeProcessor>`
      See Also:
        `List.clear()`

    - #### contains

          public boolean contains(Object o)

      Specified by:
        `contains` in interface `Collection<QueryNodeProcessor>`
      Specified by:
        `contains` in interface `List<QueryNodeProcessor>`
      See Also:
        `List.contains(Object)`

    - #### containsAll

          public boolean containsAll(Collection<?> c)

      Specified by:
        `containsAll` in interface `Collection<QueryNodeProcessor>`
      Specified by:
        `containsAll` in interface `List<QueryNodeProcessor>`
      See Also:
        `List.containsAll(Collection)`

    - #### get

          public QueryNodeProcessor get(int index)

      Specified by:
        `get` in interface `List<QueryNodeProcessor>`
      See Also:
        `List.get(int)`

    - #### indexOf

          public int indexOf(Object o)

      Specified by:
        `indexOf` in interface `List<QueryNodeProcessor>`
      See Also:
        `List.indexOf(Object)`

    - #### isEmpty

          public boolean isEmpty()

      Specified by:
        `isEmpty` in interface `Collection<QueryNodeProcessor>`
      Specified by:
        `isEmpty` in interface `List<QueryNodeProcessor>`
      See Also:
        `List.isEmpty()`

    - #### iterator

          public Iterator<QueryNodeProcessor> iterator()

      Specified by:
        `iterator` in interface `Iterable<QueryNodeProcessor>`
      Specified by:
        `iterator` in interface `Collection<QueryNodeProcessor>`
      Specified by:
        `iterator` in interface `List<QueryNodeProcessor>`
      See Also:
        `List.iterator()`

    - #### lastIndexOf

          public int lastIndexOf(Object o)

      Specified by:
        `lastIndexOf` in interface `List<QueryNodeProcessor>`
      See Also:
        `List.lastIndexOf(Object)`

    - #### listIterator

          public ListIterator<QueryNodeProcessor> listIterator()

      Specified by:
        `listIterator` in interface `List<QueryNodeProcessor>`
      See Also:
        `List.listIterator()`

    - #### listIterator

          public ListIterator<QueryNodeProcessor> listIterator(int index)

      Specified by:
        `listIterator` in interface `List<QueryNodeProcessor>`
      See Also:
        `List.listIterator(int)`

    - #### remove

          public boolean remove(Object o)

      Specified by:
        `remove` in interface `Collection<QueryNodeProcessor>`
      Specified by:
        `remove` in interface `List<QueryNodeProcessor>`
      See Also:
        `List.remove(Object)`

    - #### remove

          public QueryNodeProcessor remove(int index)

      Specified by:
        `remove` in interface `List<QueryNodeProcessor>`
      See Also:
        `List.remove(int)`

    - #### removeAll

          public boolean removeAll(Collection<?> c)

      Specified by:
        `removeAll` in interface `Collection<QueryNodeProcessor>`
      Specified by:
        `removeAll` in interface `List<QueryNodeProcessor>`
      See Also:
        `List.removeAll(Collection)`

    - #### retainAll

          public boolean retainAll(Collection<?> c)

      Specified by:
        `retainAll` in interface `Collection<QueryNodeProcessor>`
      Specified by:
        `retainAll` in interface `List<QueryNodeProcessor>`
      See Also:
        `List.retainAll(Collection)`

    - #### set

          public QueryNodeProcessor set(int index,
                               QueryNodeProcessor processor)

      Specified by:
        `set` in interface `List<QueryNodeProcessor>`
      See Also:
        `List.set(int, Object)`

    - #### size

          public int size()

      Specified by:
        `size` in interface `Collection<QueryNodeProcessor>`
      Specified by:
        `size` in interface `List<QueryNodeProcessor>`
      See Also:
        `List.size()`

    - #### subList

          public List<QueryNodeProcessor> subList(int fromIndex,
                                         int toIndex)

      Specified by:
        `subList` in interface `List<QueryNodeProcessor>`
      See Also:
        `List.subList(int, int)`

    - #### toArray

          public <T> T[] toArray(T[] array)

      Specified by:
        `toArray` in interface `Collection<QueryNodeProcessor>`
      Specified by:
        `toArray` in interface `List<QueryNodeProcessor>`
      See Also:
        `List.toArray(Object[])`

    - #### toArray

          public Object[] toArray()

      Specified by:
        `toArray` in interface `Collection<QueryNodeProcessor>`
      Specified by:
        `toArray` in interface `List<QueryNodeProcessor>`
      See Also:
        `List.toArray()`

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