parquet-column/src/main/java/parquet/filter/UnboundRecordFilter.java

/**
 * Copyright 2012 Twitter, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package parquet.filter;

import parquet.column.ColumnReader;

/**
 * Builder for a record filter. Idea is that each filter provides a create function
 * which returns an unbound filter. This only becomes a filter when it is bound to the actual
 * columns.
 *
 * @author Jacob Metcalf
 */
public interface UnboundRecordFilter {

  /**
   * Call to bind to actual columns and create filter.
   */
  RecordFilter bind( Iterable<ColumnReader> readers);
}