1.分页查找孤立点

src/main/java/com/keymobile/metadata/metadataRelation/controller/DataRelationAnalyController.java

@@ -67,14 +67,25 @@ public class DataRelationAnalyController {
         return schemaService.getSchemaBySystemId(systemId);
     }
 
-    @ApiOperation(tags = "", value = "查找指定schema下面的孤立点。parentId参数可以为schemaId，sysemId，evnId")
+    @ApiOperation(tags = "", value = "全量查找指定节点下面的孤立点。parentId参数可以为schemaId，sysemId，evnId")
     @RequestMapping(path = "/getIsolatedNode", method = RequestMethod.GET)
     public Map<String, ReturnNode> getIsolatedTableBySchema(String parentId) {
+
+        logger.info("查找指定schema下面的孤立点:"+parentId);
+        if(parentId == null ){
+            return  new HashMap<>();
+        }
+        return dataRelationAnalyService.findTableWithoutRelations(parentId,0,200000);
+    }
+
+    @ApiOperation(tags = "", value = "分页查找指定节点的孤立点。parentId参数可以为schemaId，sysemId，evnId")
+    @RequestMapping(path = "/getIsolatedTableByPage", method = RequestMethod.GET)
+    public Map<String, ReturnNode> getIsolatedTableByPage(String parentId,int start,int size) {
         logger.info("查找指定schema下面的孤立点:"+parentId);
         if(parentId == null ){
             return  new HashMap<>();
         }
-        return dataRelationAnalyService.findTableWithoutRelations(parentId);
+        return dataRelationAnalyService.findTableWithoutRelations(parentId,start,size);
     }
 
     @ApiOperation(tags = "", value = "搜索指定table下面的字段。")

src/main/java/com/keymobile/metadata/metadataRelation/service/DataRelationAnalyService.java

@@ -6,6 +6,6 @@ import java.util.Map;
 
 public interface DataRelationAnalyService {
 
-    Map<String, ReturnNode> findTableWithoutRelations(String schemaId);
+    Map<String, ReturnNode> findTableWithoutRelations(String schemaId,int start,int end);
 
 }

src/main/java/com/keymobile/metadata/metadataRelation/service/impl/DataRelationAnalyServiceImpl.java

@@ -25,7 +25,7 @@ public class DataRelationAnalyServiceImpl implements DataRelationAnalyService {
     private Session  session;
 
     @Override
-    public Map<String, ReturnNode> findTableWithoutRelations(String parentId) {
+    public Map<String, ReturnNode> findTableWithoutRelations(String parentId,int start,int end) {
         Map<String, ReturnNode> returnNodeMap = new HashMap<>();
 
         //区分传入的id是环境id，系统id还是schema，还是为空，为空则找出所有的孤立点
@@ -37,12 +37,12 @@ public class DataRelationAnalyServiceImpl implements DataRelationAnalyService {
         String condition = "";
         if(parentId !=null && parentId .startsWith("System=")){
             condition=     "<-[r1:Composition]-(:Neo4jSchema)<-[r2:Composition]-(m:Neo4jSystem{metadataId:\""+parentId+"\"})";
-            cypher = "match (n:Neo4jTable) " + condition + "where not ((n)-[:`流向`]-()) return n";
+            cypher = "match (n:Neo4jTable) " + condition + "where not ((n)-[:`流向`]-()) return n order by n.name SKIP "+start+" LIMIT "+end+" ";
         }else if(parentId !=null && parentId .startsWith("Schema=")){
             condition=     "<-[r1:Composition]-(m:Neo4jSchema{metadataId:\""+parentId+"\"})";
-            cypher = "match (n:Neo4jTable) " + condition + "where not ((n)-[:`流向`]-()) return n";
+            cypher = "match (n:Neo4jTable) " + condition + "where not ((n)-[:`流向`]-()) return  n order by n.name SKIP "+start+" LIMIT "+end+" ";
         }else if(parentId !=null){
-            cypher =  "match (n:Neo4jTable{isEnvironment:\""+parentId+"\"}) where not ((n)-[:`流向`]-()) return n";
+            cypher =  "match (n:Neo4jTable{isEnvironment:\""+parentId+"\"}) where not ((n)-[:`流向`]-()) return  n order by n.name SKIP "+start+" LIMIT "+end+" ";
         }
         logger .info("查找孤立表的语句："+cypher);
         StatementResult result = session.run(cypher);