/*
 * Copyright 2011, Mysema Ltd
 * 
 * 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.mysema.query.sql;

import java.util.Arrays;
import java.util.List;

import net.jcip.annotations.Immutable;

import com.mysema.query.types.Path;

/**
 * PrimaryKey defines a primary key on table
 *
 * @author tiwe
 */
@Immutable
public class PrimaryKey <E> {

    private final RelationalPath<?> entity;

    private final List<? extends Path<?>> localColumns;

    public PrimaryKey(RelationalPath<?> entity, Path<?>... localColumns) {
        this(entity, Arrays.asList(localColumns));
    }

    public PrimaryKey(RelationalPath<?> entity, List<? extends Path<?>> localColumns) {
        this.entity = entity;
        this.localColumns = localColumns;
    }

    public RelationalPath<?> getEntity() {
        return entity;
    }

    public List<? extends Path<?>> getLocalColumns() {
        return localColumns;
    }

}