String field = settings.array().get(SuggestSettings.DefaultKeys.SUPPORTED_FIELDS)[0];

        Map<String, Object> document = new HashMap<>();
        document.put(field, "The persimmon is delicious");
        document.put("lang", "en");
        suggester.indexer().indexFromDocument(new Map[] { document });
        suggester.refresh();

        return target;
    }

    /**
     * Processes a document map for web/file crawling with access result.
     * Default implementation delegates to the basic process method.
     *
     * @param target the document data to process
     * @param accessResult the access result from crawling
     * @return the processed document data
     */

```

## Advanced Usage

### Index from Existing Documents

```java
import org.codelibs.fess.suggest.index.contents.document.ESSourceReader;

// Index suggestions from existing Elasticsearch documents
DocumentReader reader = new ESSourceReader(
    client,
    suggester.settings(),
    "content-index",        // source index
    "document"             // document type
);

suggester.indexer()

    }

    /**
     * Indexes documents from an array of maps.
     * @param documents The documents to index.
     * @return The SuggestIndexResponse.
     */
    public SuggestIndexResponse indexFromDocument(final Map<String, Object>[] documents) {
        final long start = System.currentTimeMillis();
        try {
            final Stream<Map<String, Object>> stream = Stream.of(documents);
            if (parallel) {

    }

    /**
     * Appends query parameters to URLs based on document type.
     * Adds search highlighting for HTML and PDF documents.
     *
     * @param document the document data map
     * @param url the base URL
     * @return the URL with appended query parameters
     */
    protected String appendQueryParameter(final Map<String, Object> document, final String url) {

import jakarta.validation.constraints.Size;

/**
 * Form class for editing boost document configurations in the admin interface.
 * This form extends CreateForm to include fields necessary for updating existing boost document entries,
 * including tracking information for optimistic locking and audit trails.
 * Boost documents are used to increase the relevance score of specific documents in search results.
 *
 */
public class EditForm extends CreateForm {

s(this.options.maximizeIcon)},t.fullscreen=function(){document.documentElement.requestFullscreen?document.documentElement.requestFullscreen():document.documentElement.webkitRequestFullscreen?document.documentElement.webkitRequestFullscreen():document.documentElement.msRequestFullscreen&&document.documentElement.msRequestFullscreen()},t.windowed=function(){document.exitFullscreen?document.exitFullscreen():document.webkitExitFullscreen?document.webkitExitFullscreen():document.msExitFullscreen&&doc...

import org.codelibs.fess.util.ComponentUtil;

/**
 * A matcher class for applying document boost values based on configurable expressions.
 * This class evaluates match and boost expressions against document data to determine
 * if a document should receive a boost and what boost value to apply. It supports
 * script-based expressions for flexible document scoring.
 *
 */
public class DocBoostMatcher {

        // Test task creation with null document map
        String path = "/path/to/document.pdf";

        Tuple3<String, String, String> task = thumbnailGenerator.createTask(path, null);
        assertNull(task);
    }

    public void test_createTask_withEmptyDocMap() {
        // Test task creation with empty document map
        String path = "/path/to/document.pdf";

        }
        return tokens;
    }

    /**
     * Get field values.
     * @param document Document
     * @param fieldName Field name
     * @return Field values
     */
    protected String[] getFieldValues(final Map<String, Object> document, final String fieldName) {
        final Object value = document.get(fieldName);
        if (value instanceof String) {
            return new String[] { value.toString() };