com.baidu.rigel.biplatform.ma.model.meta.DimTableMetaDefine.java Source code

Introduction

Here is the source code for com.baidu.rigel.biplatform.ma.model.meta.DimTableMetaDefine.java

Source

/**
 * Copyright (c) 2014 Baidu, Inc. All Rights Reserved.
 *
 * 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.baidu.rigel.biplatform.ma.model.meta;

import java.io.Serializable;
import java.util.List;
import java.util.Set;

import org.apache.commons.collections.CollectionUtils;

import com.baidu.rigel.biplatform.ma.model.utils.GsonUtils;
import com.google.common.collect.Sets;

/**
 * 
 * ?????? ??
 * 
 * 
 * @author david.wang
 *
 */
public abstract class DimTableMetaDefine implements Serializable {

    /**
     * ?id
     */
    private static final long serialVersionUID = -5151316866400344913L;

    /**
     * ????? 
     * ?
     */
    private Set<ColumnMetaDefine> columns;

    /**
     * ???????
     */
    private String name;

    /**
     * 
     */
    private ReferenceDefine reference;

    /**
     * 
     */
    public DimTableMetaDefine() {
    }

    /**
     * ?
     * 
     * @return 
     */
    public ColumnMetaDefine[] getColumns() {
        if (columns == null) {
            columns = Sets.newLinkedHashSet();
        }
        return columns.toArray(new ColumnMetaDefine[0]);
    }

    /**
     * 
     * 
     * @param column
     *            ?
     */
    public void addColumn(ColumnMetaDefine column) {
        if (columns == null) {
            columns = Sets.newLinkedHashSet();
        }
        columns.add(column);
    }

    /**
     * ?
     * 
     * @param columns
     *            ?
     */
    public void addColumns(List<ColumnMetaDefine> columns) {
        if (columns == null || columns.isEmpty()) {
            return;
        }
        if (this.columns == null) {
            this.columns = Sets.newLinkedHashSet();
        }
        this.columns.addAll(columns);
    }

    /**
     * 
     * @return ??
     */
    public String getName() {
        return name;
    }

    /**
     * ???????
     * 
     * @param name
     *            ??
     */
    public void setName(String name) {
        this.name = name;
    }

    /**
     * 
     * @return ??
     */
    public ReferenceDefine getReference() {
        return reference;
    }

    /**
     * ?
     * 
     * @param reference
     *            ??
     */
    public void setReference(ReferenceDefine reference) {
        this.reference = reference;
    }

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + ((columns == null) ? 0 : columns.hashCode());
        result = prime * result + ((name == null) ? 0 : name.hashCode());
        result = prime * result + ((reference == null) ? 0 : reference.hashCode());
        return result;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj == null) {
            return false;
        }
        if (getClass() != obj.getClass()) {
            return false;
        }
        DimTableMetaDefine other = (DimTableMetaDefine) obj;
        if (columns == null) {
            if (other.columns != null) {
                return false;
            }
        } else if (!CollectionUtils.isEqualCollection(columns, other.columns)) {
            return false;
        }
        if (name == null) {
            if (other.name != null) {
                return false;
            }
        } else if (!name.equals(other.name)) {
            return false;
        }
        if (reference == null) {
            if (other.reference != null) {
                return false;
            }
        } else if (!reference.equals(other.reference)) {
            return false;
        }
        return true;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public String toString() {
        return GsonUtils.toJson(this);
    }

    /**
     * 
     * ??
     * 
     * @return ? extends DimType
     * @see DimType 
     */
    public abstract <T extends DimType> T getDimType();

}