From c737581c931a9aaac0673fd8ffd5e510dc02c5ce Mon Sep 17 00:00:00 2001
From: Sebastian Peters <sebastian.peters@tib.eu>
Date: Thu, 30 Jun 2016 10:26:45 +0200
Subject: [PATCH] add sql indexes

---
 src/main/java/org/datacite/mds/domain/Dataset.java  | 2 ++
 src/main/java/org/datacite/mds/domain/Media.java    | 8 ++++++++
 src/main/java/org/datacite/mds/domain/Metadata.java | 8 ++++++++
 3 files changed, 18 insertions(+)

diff --git a/src/main/java/org/datacite/mds/domain/Dataset.java b/src/main/java/org/datacite/mds/domain/Dataset.java
index fa95f1e3..351a31c5 100644
--- a/src/main/java/org/datacite/mds/domain/Dataset.java
+++ b/src/main/java/org/datacite/mds/domain/Dataset.java
@@ -25,6 +25,7 @@
 import org.datacite.mds.validation.constraints.MatchDomain;
 import org.datacite.mds.validation.constraints.URL;
 import org.datacite.mds.validation.constraints.Unique;
+import org.hibernate.annotations.Index;
 import org.springframework.format.annotation.DateTimeFormat;
 import org.springframework.format.annotation.DateTimeFormat.ISO;
 import org.springframework.roo.addon.entity.RooEntity;
@@ -79,6 +80,7 @@ public class Dataset {
 
     @Temporal(TemporalType.TIMESTAMP)
     @DateTimeFormat(iso = ISO.DATE_TIME)
+    @Index(name = "updated")
     private Date updated;
     
     @Temporal(TemporalType.TIMESTAMP)
diff --git a/src/main/java/org/datacite/mds/domain/Media.java b/src/main/java/org/datacite/mds/domain/Media.java
index 204de8b6..c7a081e7 100644
--- a/src/main/java/org/datacite/mds/domain/Media.java
+++ b/src/main/java/org/datacite/mds/domain/Media.java
@@ -15,6 +15,8 @@
 import org.datacite.mds.validation.constraints.MediaType;
 import org.datacite.mds.validation.constraints.URL;
 import org.datacite.mds.validation.constraints.Unique;
+import org.hibernate.annotations.Index;
+import org.hibernate.annotations.Table;
 import org.hibernate.validator.constraints.NotEmpty;
 import org.springframework.format.annotation.DateTimeFormat;
 import org.springframework.format.annotation.DateTimeFormat.ISO;
@@ -29,6 +31,12 @@
 @Unique(field = { "dataset", "mediaType" })
 @MatchDomain(groups = Media.SecondLevelConstraint.class)
 @GroupSequence( { Media.class, Media.SecondLevelConstraint.class })
+@Table(
+        appliesTo = "media",
+        indexes = {
+                @Index(name = "dataset_updated", columnNames = {"dataset", "updated"})
+        }
+)
 public class Media implements Comparable {
 
     @ManyToOne
diff --git a/src/main/java/org/datacite/mds/domain/Metadata.java b/src/main/java/org/datacite/mds/domain/Metadata.java
index 55f1f2c6..7b39bca1 100644
--- a/src/main/java/org/datacite/mds/domain/Metadata.java
+++ b/src/main/java/org/datacite/mds/domain/Metadata.java
@@ -21,6 +21,8 @@
 import org.datacite.mds.service.SchemaService;
 import org.datacite.mds.validation.constraints.MatchDoi;
 import org.datacite.mds.validation.constraints.ValidXML;
+import org.hibernate.annotations.Index;
+import org.hibernate.annotations.Table;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.format.annotation.DateTimeFormat;
 import org.springframework.format.annotation.DateTimeFormat.ISO;
@@ -34,6 +36,12 @@
 @RooEntity
 @MatchDoi(groups = Metadata.SecondLevelConstraint.class)
 @GroupSequence({ Metadata.class, Metadata.SecondLevelConstraint.class })
+@Table(
+        appliesTo = "metadata",
+        indexes = {
+                @Index(name = "dataset_version", columnNames = {"dataset", "metadataVersion"})
+        }
+)
 public class Metadata {
 
     public static final int XML_MAX_SIZE = 10 * 1024 * 1024; // 10 MByte