【设计模式与Android】建造者模式——建军大业-创新互联

public abstract classTroops {

    protectedString leader;
    protectedArrayList<String> others= newArrayList<>();
    protectedString purpose;

    //领袖
    public voidsetLeader(String leader) {
        this.leader= leader;
    }

    //其他人
    public voidsetOthers(String... others) {
        for(String other:others){
            this.others.add(other);
        }
    }

    //宗旨
    public abstract voidsetPurpose();

    @Override
    publicString toString() {
        return "Troops{"+
                "leader='"+ leader+ '\''+
                ", others="+ others.toString() +
                ", purpose='"+ purpose+ '\''+
                '}';
    }
}

public classLiangshan extendsTroops {

    protectedLiangshan(){}

    @Override
    public voidsetPurpose() {
        purpose= "替天行道";
    }
}

public abstract classBuilder {

    public abstract voidbuildLeader(String leader);

    public abstract voidbuildOthers(String... others);

    public abstract voidbuildPurpose();

    public abstractTroops create();

}

public classLiangshanBuilder extendsBuilder {

    privateLiangshan liangshan;

    @Override
    public voidbuildLeader(String leader) {
        liangshan.setLeader(leader);
    }

    @Override
    public voidbuildOthers(String... others) {
        liangshan.setOthers(others);
    }

    @Override
    public voidbuildPurpose() {
        liangshan.setPurpose();
    }

    @Override
    publicTroops create() {
        return liangshan;
    }
}

public classDirector {

    Builder mBuilder= null;

    publicDirector(Builder builder){
        this.mBuilder= builder;
    }

    public voidconstruct(String leader,String... others){
        mBuilder.buildLeader(leader);
        mBuilder.buildOthers(others);
        mBuilder.buildPurpose();
    }

}

Builder builder = newLiangshanBuilder();
Director director = newDirector(builder);
director.construct("宋江","卢俊义","吴用","公孙胜");
Log.e("梁山",builder.create().toString());

public classMingjiaoBuilder{
    privateMingjiao mingjiao;

    publicMingjiaoBuilder(){
        mingjiao= newMingjiao();
    }

    publicMingjiaoBuilder buildLeader(String leader) {
        mingjiao.setLeader(leader);
        return this;
    }

    publicMingjiaoBuilder buildOthers(String... others) {
        mingjiao.setOthers(others);
        return this;
    }

    publicMingjiaoBuilder buildPurpose() {
        mingjiao.setPurpose();
        return this;
    }

    publicMingjiao create() {
        return mingjiao;
    }
}

public classMingjiao extendsTroops {
    @Override
    public voidsetPurpose() {
        this.purpose= "作乱犯上";
    }
}

MingjiaoBuilder builder = newMingjiaoBuilder()
        //虽是妄称天子位
        .buildLeader("方腊")
        //也须伪列宰臣班
        .buildOthers("石宝","邓元觉","方杰")
        .buildPurpose();
Log.e("明教",builder.create().toString());