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  package org.apache.cayenne.access.translator.batch;
  
  import org.apache.cayenne.access.sqlbuilder.SQLBuilder;
  import org.apache.cayenne.access.sqlbuilder.UpdateBuilder;
  import org.apache.cayenne.access.translator.DbAttributeBinding;
  import org.apache.cayenne.access.types.ExtendedType;
  import org.apache.cayenne.dba.DbAdapter;
  import org.apache.cayenne.dba.TypesMapping;
  import org.apache.cayenne.map.DbAttribute;
  import org.apache.cayenne.query.BatchQueryRow;
  import org.apache.cayenne.query.DeleteBatchQuery;
  
  import static org.apache.cayenne.access.sqlbuilder.SQLBuilder.*;
  
  /**
   * @since 4.2
   */
  public class SoftDeleteBatchTranslator extends DeleteBatchTranslator {
  
      private final String deletedFieldName;
  
      public SoftDeleteBatchTranslator(DeleteBatchQuery query, DbAdapter adapter, String deletedFieldName) {
          super(query, adapter);
          this.deletedFieldName = deletedFieldName;
      }
  
      @Override
      public String getSql() {
          DeleteBatchQuery query = context.getQuery();
          DbAttribute deleteAttribute = query.getDbEntity().getAttribute(deletedFieldName);
  
          UpdateBuilder updateBuilder = update(context.getRootDbEntity())
                  .set(column(deletedFieldName).attribute(deleteAttribute)
                          .eq(SQLBuilder.value(true).attribute(deleteAttribute)))
                  .where(buildQualifier(query.getDbAttributes()));
  
          String sql = doTranslate(updateBuilder);
  
          String typeName = TypesMapping.getJavaBySqlType(deleteAttribute);
          ExtendedType<?> extendedType = context.getAdapter().getExtendedTypes().getRegisteredType(typeName);
          bindings[0].include(1, true, extendedType);
  
          return sql;
      }
  
      @Override
      public DbAttributeBinding[] updateBindings(BatchQueryRow row) {
          DeleteBatchQuery deleteBatch = context.getQuery();
  
          for(int i=0, position=1; i<deleteBatch.getDbAttributes().size(); i++) {
              position = updateBinding(row.getValue(i), position);
          }
  
          return bindings;
      }
  }
  