/**
     * The version number for optimistic locking.
     */
    public String versionNo;

    /**
     * Default constructor for ReqHeaderPager.
     * Initializes the pager with default values for page size and current page number.
     */
    public ReqHeaderPager() {
        // Default constructor - initialization handled by field defaults and clear() method
    }

    /**

    //                                                                           =========
    @Resource
    private RequestHeaderService requestHeaderService;
    @Resource
    private ReqHeaderPager reqHeaderPager;
    /** Web configuration service for managing web crawl configurations. */
    @Resource
    protected WebConfigService webConfigService;

 */
package org.codelibs.fess.app.service;

import java.util.List;

import org.codelibs.core.beans.util.BeanUtil;
import org.codelibs.fess.Constants;
import org.codelibs.fess.app.pager.ReqHeaderPager;
import org.codelibs.fess.mylasta.direction.FessConfig;
import org.codelibs.fess.opensearch.config.cbean.RequestHeaderCB;
import org.codelibs.fess.opensearch.config.exbhv.RequestHeaderBhv;

    // PUT /api/admin/reqheader/settings
    @Execute
    public JsonResponse<ApiResult> settings(final SearchBody body) {
        validateApi(body, messages -> {});
        final ReqHeaderPager pager = copyBeanToNewBean(body, ReqHeaderPager.class);
        final List<RequestHeader> list = reqHeaderService.getRequestHeaderList(pager);
        return asJson(