feat: 제품 메트릭스 엔티티 및 복합 키 클래스 추가

Author: rnqhstmd

apps/commerce-batch/src/main/java/com/loopers/batch/domain/metrics/ProductMetrics.java

@@ -0,0 +1,35 @@
+package com.loopers.batch.domain.metrics;
+
+import jakarta.persistence.*;
+import lombok.AccessLevel;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+import java.time.LocalDate;
+
+@Entity
+@Getter
+@Table(name = "product_metrics")
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+public class ProductMetrics {
+
+    @EmbeddedId
+    private ProductMetricsId id;
+
+    @Column(name = "likes_delta")
+    private int likesDelta;
+
+    @Column(name = "sales_delta")
+    private int salesDelta;
+
+    @Column(name = "views_delta")
+    private int viewsDelta;
+
+    public Long getProductId() {
+        return id.getProductId();
+    }
+
+    public LocalDate getMetricsDate() {
+        return id.getMetricsDate();
+    }
+}

apps/commerce-batch/src/main/java/com/loopers/batch/domain/metrics/ProductMetricsId.java

@@ -0,0 +1,24 @@
+package com.loopers.batch.domain.metrics;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.Embeddable;
+import lombok.AccessLevel;
+import lombok.EqualsAndHashCode;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+import java.io.Serializable;
+import java.time.LocalDate;
+
+@Embeddable
+@Getter
+@EqualsAndHashCode
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+public class ProductMetricsId implements Serializable {
+
+    @Column(name = "product_id")
+    private Long productId;
+
+    @Column(name = "metrics_date")
+    private LocalDate metricsDate;
+}