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/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * 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
 * 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 com.datatorrent.lib.streamquery.condition;

import java.util.Map;

import javax.validation.constraints.NotNull;

/**
 * A base class for select condition for selecting or filtering the rows.  Subclasses should provide the
   implementation to filter valid rows and valid joins.
 * 

* @displayName Condition * @category Stream Manipulators * @tags sql condition, filter * @since 0.3.3 */ public abstract class Condition { /** * Row containing column/value map. * * @return row validation status. */ public abstract boolean isValidRow(@NotNull Map row); /** * Filter valid rows only. */ public abstract boolean isValidJoin(@NotNull Map row1, Map row2); }





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