@SuppressWarnings("JUnit4ClassUsedInJUnit3")
public class CollectionClearTester<E> extends AbstractCollectionTester<E> {
  @CollectionFeature.Require(SUPPORTS_REMOVE)
  public void testClear() {
    collection.clear();
    assertTrue("After clear(), a collection should be empty.", collection.isEmpty());
    assertEquals(0, collection.size());
    assertFalse(collection.iterator().hasNext());
  }

  @CollectionFeature.Require(absent = SUPPORTS_REMOVE)

import org.codelibs.fess.opensearch.config.cbean.cq.BadWordCQ;
import org.codelibs.fess.opensearch.config.cbean.cq.bs.BsBadWordCQ;
import org.dbflute.cbean.ConditionQuery;
import org.opensearch.action.search.SearchRequestBuilder;
import org.opensearch.index.query.QueryBuilder;

/**
 * @author ESFlute (using FreeGen)
 */
public class BsBadWordCB extends EsAbstractConditionBean {

import org.codelibs.fess.opensearch.config.cbean.cq.ElevateWordCQ;
import org.codelibs.fess.opensearch.config.cbean.cq.bs.BsElevateWordCQ;
import org.dbflute.cbean.ConditionQuery;
import org.opensearch.action.search.SearchRequestBuilder;
import org.opensearch.index.query.QueryBuilder;

/**
 * @author ESFlute (using FreeGen)
 */
public class BsElevateWordCB extends EsAbstractConditionBean {

 */
package org.codelibs.fess.opensearch.config.cbean.bs;

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

import org.codelibs.fess.opensearch.config.allcommon.EsAbstractConditionBean;
import org.codelibs.fess.opensearch.config.bsentity.dbmeta.JobLogDbm;
import org.codelibs.fess.opensearch.config.cbean.JobLogCB;
import org.codelibs.fess.opensearch.config.cbean.ca.JobLogCA;

import org.codelibs.fess.opensearch.config.cbean.cq.PathMappingCQ;
import org.codelibs.fess.opensearch.config.cbean.cq.bs.BsPathMappingCQ;
import org.dbflute.cbean.ConditionQuery;
import org.opensearch.action.search.SearchRequestBuilder;
import org.opensearch.index.query.QueryBuilder;

/**
 * @author ESFlute (using FreeGen)
 */
public class BsPathMappingCB extends EsAbstractConditionBean {

import org.codelibs.fess.opensearch.config.cbean.cq.ThumbnailQueueCQ;
import org.codelibs.fess.opensearch.config.cbean.cq.bs.BsThumbnailQueueCQ;
import org.dbflute.cbean.ConditionQuery;
import org.opensearch.action.search.SearchRequestBuilder;
import org.opensearch.index.query.QueryBuilder;

/**
 * @author ESFlute (using FreeGen)
 */
public class BsThumbnailQueueCB extends EsAbstractConditionBean {

import org.codelibs.fess.opensearch.config.cbean.WebConfigCB;
import org.codelibs.fess.opensearch.config.exentity.WebConfig;
import org.dbflute.Entity;
import org.dbflute.bhv.readable.CBCall;
import org.dbflute.bhv.readable.EntityRowHandler;
import org.dbflute.cbean.ConditionBean;
import org.dbflute.cbean.result.ListResultBean;
import org.dbflute.cbean.result.PagingResultBean;

    /**
     * Process an url when it's added as a seed url.
     *
     * @param url URL
     */
    void processUrl(String url);

    /**
     * Clear this filter.
     */
    void clear();

	// Clear
	if err := DB.Model(&user2).Association("Company").Clear(); err != nil {
		t.Errorf("Error happened when clear Company, got %v", err)
	}

	if err := DB.Model(&user2).Association("Manager").Clear(); err != nil {
		t.Errorf("Error happened when clear Manager, got %v", err)
	}

	AssertAssociationCount(t, user2, "Company", 0, "after clear")

    return (row == null) ? null : safeGet(row, columnKey);
  }

  @Override
  public boolean isEmpty() {
    return size() == 0;
  }

  @Override
  public void clear() {
    Iterators.clear(cellSet().iterator());
  }

  @CanIgnoreReturnValue
  @Override
  public @Nullable V remove(@Nullable Object rowKey, @Nullable Object columnKey) {
    Map<C, V> row = safeGet(rowMap(), rowKey);