cn.nukkit.command.tree.node.ParamNode Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of powernukkitx Show documentation

Make Nukkit great again!

There is a newer version: 1.20.40-r1

package cn.nukkit.command.tree.node;

import cn.nukkit.api.PowerNukkitXOnly;
import cn.nukkit.api.Since;
import cn.nukkit.command.data.CommandEnum;
import cn.nukkit.command.data.CommandParamType;
import cn.nukkit.command.tree.ParamList;

/**
 * 一个通用的命令节点抽象类实现，插件想实现自己的命令参数节点应该继承这个类实现。
 */
@PowerNukkitXOnly
@Since("1.19.60-r1")
public abstract class ParamNode implements IParamNode {
    protected T value = null;
    protected boolean optional;
    protected ParamList parent;

    @Override
    @SuppressWarnings("unchecked")
    public  E get() {
        if (value == null) return null;
        else return (E) value;
    }

    @Override
    public boolean hasResult() {
        return value != null;
    }

    @Override
    public void reset() {
        if (this.value != null) this.value = null;
    }

    @Override
    public boolean isOptional() {
        return optional;
    }

    @Override
    public ParamList getParent() {
        return parent;
    }

    @Override
    public IParamNode init(ParamList parent, String name, boolean optional, CommandParamType type, CommandEnum enumData, String postFix) {
        this.parent = parent;
        this.optional = optional;
        return this;
    }
}