org.apache.lucene.search

## Class PhraseWildcardQuery.PhraseTerm

- java.lang.Object
- - org.apache.lucene.search.PhraseWildcardQuery.PhraseTerm

- Direct Known Subclasses:
    PhraseWildcardQuery.MultiTerm, PhraseWildcardQuery.SingleTerm
  Enclosing class:
    PhraseWildcardQuery

      protected abstract static class PhraseWildcardQuery.PhraseTerm
      extends Object

  All `PhraseWildcardQuery.PhraseTerm` are light and immutable. They do not hold query processing data such as `PhraseWildcardQuery.TermsData`. That way, the `PhraseWildcardQuery` is immutable and light itself and can be used safely as a key of the query cache.

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `protected int` | `termPosition`

  - ### Constructor Summary

    Constructors
    Modifier | Constructor and Description
    --- | ---
    `protected` | `PhraseTerm(int termPosition)`

  - ### Method Summary

    All Methods Instance Methods Abstract Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `protected abstract int` | `collectTermData(PhraseWildcardQuery query, IndexSearcher searcher, List<LeafReaderContext> segments, int remainingMultiTerms, int maxExpansionsForTerm, PhraseWildcardQuery.TermsData termsData)` Collects `TermState` and `TermStatistics` for the term (potentially expanded).
    `protected int` | `collectTermData(PhraseWildcardQuery query, IndexSearcher searcher, List<LeafReaderContext> segments, PhraseWildcardQuery.TermsData termsData)` Collects `TermState` and `TermStatistics` for the term without expansion.
    `abstract boolean` | `equals(Object o)`
    `protected abstract Query` | `getQuery()`
    `protected abstract boolean` | `hasExpansions()`
    `abstract int` | `hashCode()`
    `protected abstract void` | `toString(StringBuilder builder)`

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

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

- - ### Field Detail

    - #### termPosition

          protected final int termPosition

  - ### Constructor Detail

    - #### PhraseTerm

          protected PhraseTerm(int termPosition)

  - ### Method Detail

    - #### hasExpansions

          protected abstract boolean hasExpansions()

    - #### getQuery

          protected abstract Query getQuery()

    - #### collectTermData

          protected int collectTermData(PhraseWildcardQuery query,
                                        IndexSearcher searcher,
                                        List<LeafReaderContext> segments,
                                        PhraseWildcardQuery.TermsData termsData)
                                 throws IOException

      Collects `TermState` and `TermStatistics` for the term without expansion. It must be called only if `hasExpansions()` returns false. Simplified version of `#collectTermData(PhraseWildcardQuery, IndexSearcher, List, int, int, TermsData)` with less arguments. This method throws `UnsupportedOperationException` if not overridden.
      Throws:
        `IOException`

    - #### collectTermData

          protected abstract int collectTermData(PhraseWildcardQuery query,
                                                 IndexSearcher searcher,
                                                 List<LeafReaderContext> segments,
                                                 int remainingMultiTerms,
                                                 int maxExpansionsForTerm,
                                                 PhraseWildcardQuery.TermsData termsData)
                                          throws IOException

      Collects `TermState` and `TermStatistics` for the term (potentially expanded).
      Parameters:
        `termsData` - `PhraseWildcardQuery.TermsData` to update with the collected terms and stats.
      Returns:
        The number of expansions or matches in all segments; or 0 if this term does not match in any segment, in this case the phrase query can immediately stop.
      Throws:
        `IOException`

    - #### toString

          protected abstract void toString(StringBuilder builder)

    - #### equals

          public abstract boolean equals(Object o)

      Overrides:
        `equals` in class `Object`

    - #### hashCode

          public abstract int hashCode()

      Overrides:
        `hashCode` in class `Object`

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