* executor. The listener will have the corresponding transition method called whenever the
   * service changes state. The listener will not have previous state changes replayed, so it is
   * suggested that listeners are added before the service starts.
   *
   * <p>{@code addListener} guarantees execution ordering across calls to a given listener but not

    checks if the PR looks good or needs additional changes.
-   If all looks good, the reviewer will approve the PR.
-   If a change is needed, the contributor is requested to make the suggested
    change.
-   You make the change and submit it for the review again.
-   This cycle repeats itself until the PR gets approved.
-   Note: As a friendly reminder, we may reach out to you if the PR is awaiting

    this.state.markReady();
  }

  /**
   * Registers a {@link Listener} to be {@linkplain Executor#execute executed} on the given
   * executor. The listener will not have previous state changes replayed, so it is suggested that
   * listeners are added before any of the managed services are {@linkplain Service#startAsync
   * started}.
   *
   * <p>{@code addListener} guarantees execution ordering across calls to a given listener but not

      return Arrays.copyOfRange(array, start, end);
    }

    @GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 0;
  }

  /**
   * This is adapted from the regex suggested by {@link Double#valueOf(String)} for prevalidating
   * inputs. All valid inputs must pass this regex, but it's semantically fine if not all inputs

benefits of this kind of change are very small, and in our experience it is not
worth investing the substantial effort needed to review them. This especially
includes changes suggested by tools.

We sometimes reject contributions due to the low quality of the submission
since low-quality submissions tend to take unreasonable effort to review

import org.codelibs.fess.suggest.analysis.SuggestAnalyzer;
import org.codelibs.fess.suggest.constants.FieldNames;
import org.codelibs.fess.suggest.converter.ReadingConverter;
import org.codelibs.fess.suggest.exception.SuggesterException;
import org.codelibs.fess.suggest.index.SuggestIndexer;
import org.codelibs.fess.suggest.normalizer.Normalizer;
import org.codelibs.fess.suggest.request.popularwords.PopularWordsRequestBuilder;

          e.preventDefault();
        }
        suggestor.selectlist("up");
      } else if (e.keyCode === KEY_CODES.DOWN) {
        if ($boxElement.css("display") === "none") {
          suggestor.suggest();
        } else {
          suggestor.selectlist("down");
        }
      } else if (e.keyCode === KEY_CODES.ENTER) {
        if (isFocusList) {
          suggestor.fixList();
        }
      }
    });

    <artifactId>fess-suggest</artifactId>
    <version>15.2.0-SNAPSHOT</version>
</dependency>
```

### Basic Usage

#### 1. Create Suggester Instance

```java
import org.codelibs.fess.suggest.Suggester;
import org.opensearch.client.Client;

// Initialize with your OpenSearch client
String suggestId = "my-suggest-index";
Suggester suggester = Suggester.builder().build(client, suggestId);
```

                    logger.debug("Failed to update suggest index.", e);
                }
                exitCode.set(1);
            }
        }

        logger.info("Replacing new suggest index.");
        suggestHelper.suggester().switchIndex();

        logger.info("Removing old indices.");
        suggestHelper.suggester().removeDisableIndices();

        return exitCode.get();
    }

        assertEquals(2, suggester.getDocumentWordsNum());
        assertEquals(1, suggester.getQueryWordsNum());

        suggester.indexer().deleteDocumentWords();
        suggester.refresh();
        assertEquals(1, suggester.getAllWordsNum());
        assertEquals(0, suggester.getDocumentWordsNum());
        assertEquals(1, suggester.getQueryWordsNum());
    }

    @Test