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   *  regarding copyright ownership.  The ASF licenses this file
   *  to you under the Apache License, Version 2.0 (the
   *  "License"); you may not use this file except in compliance
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  package org.apache.cayenne.dbsync.reverse.dbimport;
  
  import java.util.ArrayList;
  import java.util.List;
  
  /**
   * @since 4.0
   */
  public abstract class SchemaContainer extends FilterContainer {
  
      private final List<Schema> schemaCollection = new ArrayList<>();
  
      public List<Schema> getSchemas() {
          return schemaCollection;
      }
  
      public void addSchema(Schema schema) {
          this.schemaCollection.add(schema);
      }
  
      public SchemaContainer(){
      }
  
      public SchemaContainer(SchemaContainer original) {
          super(original);
          for (Schema schema : original.getSchemas()) {
              this.addSchema(new Schema(schema));
          }
      }
  
      @Override
      public boolean isEmptyContainer() {
          if (!super.isEmptyContainer()) {
              return false;
          }
  
          if (schemaCollection.isEmpty()) {
              return true;
          }
  
          for (Schema schema : schemaCollection) {
              if (!schema.isEmptyContainer()) {
                  return false;
              }
          }
          return true;
      }
  
      public StringBuilder toString(StringBuilder res, String prefix) {
          if (!isBlank(schemaCollection)) {
              for (Schema schema : schemaCollection) {
                  schema.toString(res, prefix);
              }
          }
  
          return super.toString(res, prefix + "  ");
      }
  }
  