#130 multiname: add support in saving

src/main/java/com/poiji/annotation/ExcelCellName.java

@@ -32,9 +32,11 @@
 
     /**
      * Delimeter for column multiname.
-     *
+     * <p>
      * Example: @ExcelCellName(value = "id,identifier", delimerer = ",")
-     * means that column with name 'id' will be mapped, or if no column 'id', then column 'identifier' will be mapped to this field.
+     * reading: column with name 'id' will be mapped into field, or if no column 'id',
+     * then column 'identifier' will be mapped into field.
+     * writing: field will be saved into column 'id'
      *
      * @return delimeter for column multiname.
      */

src/main/java/com/poiji/save/MappedFields.java

@@ -53,7 +53,10 @@ public MappedFields parseEntity() {
             } else {
                 final ExcelCellName annotation = field.getAnnotation(ExcelCellName.class);
                 if (annotation != null) {
-                    final String excelName = annotation.value();
+                    final String delimeter = annotation.delimeter();
+                    final String excelName = delimeter.isEmpty()
+                        ? annotation.value()
+                        : annotation.value().substring(0, annotation.value().indexOf(delimeter));
                     final int order = annotation.order();
                     if (order == ABSENT_ORDER) {
                         unordered.add(field);

src/test/java/com/poiji/deserialize/MultinameTest.java

@@ -0,0 +1,40 @@
+package com.poiji.deserialize;
+
+import com.poiji.bind.Poiji;
+import com.poiji.deserialize.model.ConcurrentEntity;
+import java.io.File;
+import java.util.Arrays;
+import java.util.List;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
+
+import static java.util.Collections.singletonList;
+import static org.hamcrest.CoreMatchers.equalTo;
+import static org.junit.Assert.assertThat;
+
+@RunWith(Parameterized.class)
+public class MultinameTest {
+
+    private final String path;
+
+    public MultinameTest(String path) {
+        this.path = path;
+    }
+
+    @Parameterized.Parameters
+    public static List<String> excel() {
+        return Arrays.asList("src/test/resources/multiname.xlsx", "src/test/resources/multiname.xls");
+    }
+
+    @Test
+    public void read() {
+        final List<ConcurrentEntity> expected = singletonList(new ConcurrentEntity().setPrimitiveLong(1).setText("1"));
+
+        final List<ConcurrentEntity> actual = Poiji.fromExcel(new File(path), ConcurrentEntity.class);
+
+        assertThat(actual, equalTo(expected));
+
+    }
+
+}

src/test/java/com/poiji/deserialize/model/ConcurrentEntity.java

@@ -13,7 +13,7 @@ public final class ConcurrentEntity {
 
     @ExcelCell(0)
     private long primitiveLong;
-    @ExcelCellName(value = "TexT")
+    @ExcelCellName(value = "TexT,other", delimeter = ",")
     private String text;
 
 }