com.landawn.abacus.condition.Join Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of abacus-util-se Show documentation
A general programming library in Java/Android. It's easy to learn and simple to use with concise and powerful APIs.
There is a newer version: 2.1.12
/*
 * Copyright (C) 2015 HaiYang Li
 *
 * 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 com.landawn.abacus.condition;

import static com.landawn.abacus.util.WD._SPACE;

import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

import com.landawn.abacus.util.Array;
import com.landawn.abacus.util.N;
import com.landawn.abacus.util.NamingPolicy;

// TODO: Auto-generated Javadoc
/**
 * The Class Join.
 *
 * @author Haiyang Li
 * @since 0.8
 */
public class Join extends AbstractCondition {

    /** The Constant serialVersionUID. */
    private static final long serialVersionUID = -6241397386906482856L;

    /** The join entities. */
    private List joinEntities;

    /** The condition. */
    private Condition condition;

    /**
     * Instantiates a new join.
     */
    // For Kryo
    Join() {
    }

    /**
     * Instantiates a new join.
     *
     * @param joinEntity
     */
    public Join(String joinEntity) {
        this(Operator.JOIN, joinEntity);
    }

    /**
     * Instantiates a new join.
     *
     * @param operator
     * @param joinEntity
     */
    protected Join(Operator operator, String joinEntity) {
        this(operator, joinEntity, null);
    }

    /**
     * Instantiates a new join.
     *
     * @param joinEntity
     * @param condition
     */
    public Join(String joinEntity, Condition condition) {
        this(Operator.JOIN, joinEntity, condition);
    }

    /**
     * Instantiates a new join.
     *
     * @param operator
     * @param joinEntity
     * @param condition
     */
    protected Join(Operator operator, String joinEntity, Condition condition) {
        this(operator, Array.asList(joinEntity), condition);
    }

    /**
     * Instantiates a new join.
     *
     * @param joinEntities
     * @param condition
     */
    public Join(Collection joinEntities, Condition condition) {
        this(Operator.JOIN, joinEntities, condition);
    }

    /**
     * Instantiates a new join.
     *
     * @param operator
     * @param joinEntities
     * @param condition
     */
    protected Join(Operator operator, Collection joinEntities, Condition condition) {
        super(operator);
        this.joinEntities = new ArrayList<>(joinEntities);
        this.condition = condition;
    }

    /**
     * Gets the join entities.
     *
     * @return
     */
    public List getJoinEntities() {
        return joinEntities;
    }

    /**
     * Gets the condition.
     *
     * @param 
     * @return
     */
    @SuppressWarnings("unchecked")
    public  T getCondition() {
        return (T) condition;
    }

    /**
     * Gets the parameters.
     *
     * @return
     */
    @SuppressWarnings("unchecked")
    @Override
    public List