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package ars.invoke.local;

import java.lang.annotation.Target;
import java.lang.annotation.Retention;
import java.lang.annotation.Inherited;
import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.RetentionPolicy;

import ars.util.Strings;

/**
 * 接口参数注解
 *
 * @author wuyongqiang
 */
@Inherited
@Documented
@Target(ElementType.PARAMETER)
@Retention(RetentionPolicy.RUNTIME)
public @interface Param {
    /**
     * 获取参数名称
     *
     * @return 参数名称
     */
    public String name() default Strings.EMPTY_STRING;

    /**
     * 参数默认值
     *
     * @return 参数默认值
     */
    public String value() default Strings.EMPTY_STRING;

    /**
     * 参数正则表达式
     *
     * @return 正则表达式
     */
    public String regex() default Strings.EMPTY_STRING;

    /**
     * 参数是否必须
     *
     * @return true/false
     */
    public boolean required() default false;

    /**
     * 获取参数适配器
     *
     * @return 参数适配器
     */
    public Class adapter() default ParamAdapter.class;

}