add serialVersionUID

hsweb-system/hsweb-system-database-manager/hsweb-system-database-manager-api/src/main/java/org/hswebframework/web/database/manager/meta/ObjectMetadata.java

@@ -3,12 +3,12 @@ package org.hswebframework.web.database.manager.meta;
 import java.io.Serializable;
 
 /**
- * TODO 完成注释
- *
  * @author zhouhao
  */
 public abstract class ObjectMetadata implements Serializable {
 
+    private static final long serialVersionUID = -5672781818170734240L;
+
     protected String name;
 
     protected ObjectType type;

hsweb-system/hsweb-system-database-manager/hsweb-system-database-manager-api/src/main/java/org/hswebframework/web/database/manager/meta/table/ColumnMetadata.java

@@ -4,11 +4,11 @@ import java.io.Serializable;
 import java.util.List;
 
 /**
- * TODO 完成注释
  *
  * @author zhouhao
  */
 public class ColumnMetadata implements Serializable {
+    private static final long serialVersionUID = 2068679809718583039L;
     private String name;
 
     private String comment;

hsweb-system/hsweb-system-database-manager/hsweb-system-database-manager-api/src/main/java/org/hswebframework/web/database/manager/meta/table/Constraint.java

@@ -3,11 +3,10 @@ package org.hswebframework.web.database.manager.meta.table;
 import java.io.Serializable;
 
 /**
- * TODO 完成注释
- *
  * @author zhouhao
  */
 public class Constraint implements Serializable {
+    private static final long serialVersionUID = 6594361915290310179L;
     private String table;
 
     private String column;

hsweb-system/hsweb-system-database-manager/hsweb-system-database-manager-api/src/main/java/org/hswebframework/web/database/manager/meta/table/ForeignConstraint.java

@@ -1,11 +1,10 @@
 package org.hswebframework.web.database.manager.meta.table;
 
 /**
- * TODO 完成注释
- *
  * @author zhouhao
  */
 public class ForeignConstraint extends Constraint {
+    private static final long serialVersionUID = -7146549641064694467L;
     private String targetTable;
 
     private String targetColumn;

hsweb-system/hsweb-system-database-manager/hsweb-system-database-manager-api/src/main/java/org/hswebframework/web/database/manager/meta/table/TableMetadata.java

@@ -5,11 +5,11 @@ import org.hswebframework.web.database.manager.meta.ObjectMetadata;
 import java.util.List;
 
 /**
- * TODO 完成注释
- *
  * @author zhouhao
  */
 public class TableMetadata extends ObjectMetadata {
+    private static final long serialVersionUID = 1762059989615865556L;
+
     private String comment;
 
     private List<Constraint> constraints;