@Override
      public Entry<E> next() {
        if (!hasNext()) {
          throw new NoSuchElementException();
        }
        // requireNonNull is safe because current is only nulled out after iteration is complete.
        Entry<E> result = wrapEntry(requireNonNull(current));
        prevEntry = result;
        if (current.succ() == header) {
          current = null;
        } else {

    // Attribute
    // =========
    /** Search engine client for document operations */
    @Resource
    protected SearchEngineClient searchEngineClient;

    // ===================================================================================
    // Search Execute
    //

    /**
     * Performs bulk document operations (index multiple documents).
     * Validates document fields and adds default values where necessary.

import org.codelibs.fess.app.web.admin.general.EditForm;

/**
 * Request body class for general settings edit operations in the admin REST API.
 * This class extends EditForm to inherit the necessary form validation and binding capabilities
 * for general settings management operations.
 */
public class EditBody extends EditForm {

    /**
     * Default constructor.
     */
    public EditBody() {

import org.codelibs.fess.app.web.admin.joblog.EditForm;

/**
 * Request body class for job log edit operations in the admin REST API.
 * This class extends EditForm to inherit the necessary form validation and binding capabilities
 * for job log management operations.
 */
public class EditBody extends EditForm {

    /**
     * Default constructor.
     */
    public EditBody() {

import org.codelibs.fess.app.web.admin.labeltype.EditForm;

/**
 * Request body class for label type edit operations in the admin REST API.
 * This class extends EditForm to inherit the necessary form validation and binding capabilities
 * for label type management operations.
 */
public class EditBody extends EditForm {

    /**
     * Default constructor.
     */
    public EditBody() {

package org.codelibs.fess.app.web.api.admin.role;

import org.codelibs.fess.app.web.admin.role.EditForm;

/**
 * Request body class for role edit operations in the admin REST API.
 * This class extends EditForm to inherit the necessary form validation and binding capabilities
 * for role management operations.
 */
public class EditBody extends EditForm {

    /**
     * Default constructor.
     */
    public EditBody() {

import org.codelibs.fess.app.web.admin.searchlist.EditForm;

/**
 * Request body class for search list edit operations in the admin REST API.
 * This class extends EditForm to inherit the necessary form validation and binding capabilities
 * for search list management operations.
 */
public class EditBody extends EditForm {

    /**
     * Default constructor.
     */
    public EditBody() {

import org.codelibs.fess.app.web.admin.webconfig.EditForm;

/**
 * Request body class for web config edit operations in the admin REST API.
 * This class extends EditForm to inherit the necessary form validation and binding capabilities
 * for web configuration management operations.
 */
public class EditBody extends EditForm {

    /**
     * Default constructor.
     */
    public EditBody() {

import org.codelibs.fess.app.web.admin.accesstoken.EditForm;

/**
 * Request body class for access token edit operations in the admin REST API.
 * This class extends EditForm to inherit the necessary form validation and binding capabilities
 * for access token management operations.
 */
public class EditBody extends EditForm {

    /**
     * Default constructor.
     */
    public EditBody() {

import java.util.List;
import java.util.Map;

/**
 * Request body for bulk document operations containing a list of documents.
 */
public class BulkBody {

    /**
     * Creates a new instance of BulkBody.
     */
    public BulkBody() {
        // Default constructor
    }

    /**
     * List of documents to be processed in bulk operations.
     */
    public List<Map<String, Object>> documents;