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鑑於代碼示例無效代碼：Spring Roo的1.2.5生成嵌套註釋
final ClassOrInterfaceTypeDetailsBuilder cidBuilder = new ClassOrInterfaceTypeDetailsBuilder(javaTypeDetails);
...
FieldMetadataBuilder field = ...;
...
final AnnotationMetadataBuilder newAnnotationMetadata = new AnnotationMetadataBuilder(JpaJavaType.JOIN_TABLE);
newAnnotationMetadata.addStringAttribute("name", joinTableName);
List<NestedAnnotationAttributeValue> valueList;
AnnotationMetadataBuilder nestedAnnotationMetadata;
if (joinColumnName != null) {
valueList = new ArrayList<NestedAnnotationAttributeValue>(1);
nestedAnnotationMetadata = new AnnotationMetadataBuilder(JpaJavaType.JOIN_COLUMN);
nestedAnnotationMetadata.addStringAttribute("name", joinColumnName);
valueList.add(new NestedAnnotationAttributeValue(new JavaSymbolName("value"), nestedAnnotationMetadata.build()));
newAnnotationMetadata.addAttribute(new ArrayAttributeValue<NestedAnnotationAttributeValue>(
new JavaSymbolName("joinColumns"), valueList));
}
if (inverseJoinColumnName != null) {
valueList = new ArrayList<NestedAnnotationAttributeValue>(1);
nestedAnnotationMetadata = new AnnotationMetadataBuilder(JpaJavaType.JOIN_COLUMN);
nestedAnnotationMetadata.addStringAttribute("name", inverseJoinColumnName);
valueList.add(new NestedAnnotationAttributeValue(new JavaSymbolName("value"), nestedAnnotationMetadata.build()));
newAnnotationMetadata.addAttribute(new ArrayAttributeValue<NestedAnnotationAttributeValue>(
new JavaSymbolName("inverseJoinColumns"), valueList));
}
field.addAnnotation(newAnnotationMetadata.build());
這將產生對現場無效的批註，如：
@JoinTable(name = "NOTICE_EVENT_RECEIVER_X", joinColumns = { @javax.persistence.JoinColumn("NOTICE_EVENT_ID") }, inverseJoinColumns = { @javax.persistence.JoinColumn("NOTICE_RECEIVER_ID") })
正如你看到的，屬性「名稱「的JoinColumn註釋缺失，代碼不可編譯。 我做錯了什麼或者是Roo錯誤？
UPD：肯定有roo錯誤：當註釋屬性的數量是1時 - 假定它總是一個「值」屬性。這個假設是錯誤的！解決方法是指定一個更多的屬性。例如（在我的場景中）「可空」。我這種情況下生成的代碼是可編譯的。