yilai/AmountBasedApprovalRule.java

/**
 * 基于金额的审批规则
 */
package com.orderprocessing;

public class AmountBasedApprovalRule implements ApprovalRule {
    private double threshold;
    private int approvalLevel;
    private String description;
    
    /**
     * 构造方法
     * @param threshold 审批阈值
     * @param approvalLevel 审批级别
     */
    public AmountBasedApprovalRule(double threshold, int approvalLevel) {
        this.threshold = threshold;
        this.approvalLevel = approvalLevel;
        this.description = "订单金额超过" + threshold + "元需要" + approvalLevel + "级审批";
    }
    
    @Override
    public boolean requiresApproval(Order order) {
        return order != null && order.getTotalAmount() > threshold;
    }
    
    @Override
    public int getApprovalLevel() {
        return approvalLevel;
    }
    
    @Override
    public String getDescription() {
        return description;
    }
    
    public double getThreshold() {
        return threshold;
    }
}