readme

README.md

@@ -0,0 +1,8 @@
+# 数据集TableData创建插件
+
+## 使用场景
+- 如果需要以插件的方式，根据<TableData>标签的class属性解析为其它类型TableData，满足额外的数据集功能需要。
+
+## 注意事项
+- `getClassAttr`返回的Class一般是`matchPattern`方法匹配的类型，这样能保证保存TableData到xml时不会修改class属性。
+- 示例插件作用是给数据集加一LastUpdateDataTime子标签存储上次修改时间,通过getLastUpdateDataTime获取。

src/main/java/com/fr/plugin/tabledata/build/DemoTableData.java

@@ -2,9 +2,12 @@ package com.fr.plugin.tabledata.build;
 
 import com.fr.data.impl.Connection;
 import com.fr.data.impl.DBTableData;
+import com.fr.general.DateUtils;
 import com.fr.stable.xml.XMLPrintWriter;
 import com.fr.stable.xml.XMLableReader;
 
+import java.util.Date;
+
 /**
  * @author rinoux
  * @version 10.0
@@ -12,10 +15,10 @@ import com.fr.stable.xml.XMLableReader;
  */
 public class DemoTableData extends DBTableData {
 
-    private static final String DemoTag = "ExtraInfo";
+    private static final String DemoTag = "LastUpdateDataTime";
 
 
-    private String extraInfo;
+    private String lastUpdateDataTime;
 
     public DemoTableData() {
     }
@@ -28,12 +31,12 @@ public class DemoTableData extends DBTableData {
         super(database, query);
     }
 
-    public String getExtraInfo() {
-        return extraInfo;
+    public String getLastUpdateDataTime() {
+        return lastUpdateDataTime;
     }
 
-    public void setExtraInfo(String extraInfo) {
-        this.extraInfo = extraInfo;
+    public void setLastUpdateDataTime(String lastUpdateDataTime) {
+        this.lastUpdateDataTime = lastUpdateDataTime;
     }
 
     @Override
@@ -42,7 +45,7 @@ public class DemoTableData extends DBTableData {
         if (reader.isChildNode()) {
             String tagName = reader.getTagName();
             if (DemoTag.equals(tagName)) {
-                setExtraInfo(reader.getContent());
+                setLastUpdateDataTime(reader.getElementValue());
             }
         }
     }
@@ -51,7 +54,7 @@ public class DemoTableData extends DBTableData {
     public void writeXML(XMLPrintWriter writer) {
         super.writeXML(writer);
         writer.startTAG(DemoTag);
-        writer.textNode("some demo extra info");
+        writer.textNode(DateUtils.DATETIMEFORMAT2.format(new Date()));
         writer.end();
     }
 }

src/main/java/com/fr/plugin/tabledata/build/DemoTableDataBuilder.java

@@ -1,6 +1,7 @@
 package com.fr.plugin.tabledata.build;
 
-import com.fr.plugin.transform.ExecuteFunctionRecord;
+import com.fr.base.TableData;
+import com.fr.data.impl.DBTableData;
 import com.fr.plugin.transform.FunctionRecorder;
 import com.fr.stable.fun.impl.AbstractTableDataBuildProvider;
 
@@ -11,14 +12,14 @@ import com.fr.stable.fun.impl.AbstractTableDataBuildProvider;
  */
 @FunctionRecorder
 public class DemoTableDataBuilder extends AbstractTableDataBuildProvider<DemoTableData> {
+
     @Override
-    public boolean matchPattern(String tdClassName) {
-        return tdClassName.endsWith(".DBTableData");
+    public Class<? extends TableData> getAttrClass() {
+        return DBTableData.class;
     }
 
     @Override
-    @ExecuteFunctionRecord
-    public DemoTableData newInstance() {
-        return new DemoTableData();
+    public Class<DemoTableData> getBuildClass() {
+        return DemoTableData.class;
     }
 }