[英]JAXB, annotations for setter/getter
@XmlType
@XmlAccessorType(XmlAccessType.FIELD) // here I need this access
public class User implements Serializable
{
// ...
@XmlTransient
private Set<Values> values;
// ...
@XmlElement
private Set<History> getXmlHistory()
{
return new CustomSet<Values, History>(Values);
}
private void setXmlHistory(final Set<History> aHistory)
{
this.values = new HashSet<Values>();
}
}
When I am create User object in Java code and after create XML, then all normally. 当我在Java代码中创建User对象并在创建XML之后,通常都是。
But when I try to get User-object from XML, then field values
always null
. 但是当我尝试从XML获取User-object时,字段values
始终为null
。 So setter not working here. 所以setter不在这里工作。 May be setter needs some annotation too? 可能setter也需要一些注释吗?
XML looks like XML看起来像
<user>
...
<xmlHistory>
// ... record 1
</xmlHistory>
<xmlHistory>
// ... record 2
</xmlHistory>
</user>
I do not believe that this is a JAXB problem, as the following model will work: 我不相信这是一个JAXB问题,因为以下模型将起作用:
package forum10617267;
import java.io.Serializable;
import java.util.*;
import javax.xml.bind.annotation.*;
@XmlType
@XmlAccessorType(XmlAccessType.FIELD) // here I need this access
public class User implements Serializable {
@XmlTransient
private Set<History> history = new HashSet<History>();
@XmlElement
private Set<History> getXmlHistory() {
return history;
}
private void setXmlHistory(final Set<History> aHistory) {
this.history = aHistory;
}
}
The problem you are seeing is a result of the logic you have in your get/set methods. 您看到的问题是您的get / set方法中的逻辑结果。 Since your values
field is not initialized, I am not sure how CustomSet
would be able to update it. 由于您的values
字段未初始化,我不确定CustomSet
如何能够更新它。
package forum10617267;
import java.io.Serializable;
import java.util.*;
import javax.xml.bind.annotation.*;
@XmlType
@XmlAccessorType(XmlAccessType.FIELD) // here I need this access
public class User implements Serializable {
@XmlTransient
private Set<Values> values;
@XmlElement
private Set<History> getXmlHistory() {
return new CustomSet<Values, History>(values);
}
private void setXmlHistory(final Set<History> aHistory) {
this.values = new HashSet<Values>();
}
}
I believe that @XmlAccessorType(XmlAccessType.FIELD)
in combination with your @XmlTransient
is the source of the problem. 我相信@XmlAccessorType(XmlAccessType.FIELD)
与@XmlTransient
结合是问题的根源。 Have you tried without the transient annotation? 您是否尝试过没有瞬态注释?
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