英文:
Retrieve and assign jcr:mixinTypes a multi-valued property in magnolia
问题
我在尝试获取Magnolia中的多值属性时遇到错误，因为我将其分配给了String类型。我应该如何正确读取单值和多值属性（因为两者都存在）？
> javax.jcr.ValueFormatException：属性
> /wcmstest/de/search/jcr:mixinTypes是多值属性，因此其值只能作为数组检索
> at org.apache.jackrabbit.core.PropertyImpl.internalGetValue(PropertyImpl.java:483)
> at org.apache.jackrabbit.core.PropertyImpl.getValue(PropertyImpl.java:510)
> at org.apache.jackrabbit.core.PropertyImpl.getString(PropertyImpl.java:520)
> at info.magnolia.jcr.wrapper.DelegatePropertyWrapper.getString(DelegatePropertyWrapper.java:162)
> at info.magnolia.jcr.wrapper.DelegatePropertyWrapper.getString(DelegatePropertyWrapper.java:162)
> at info.magnolia.jcr.wrapper.DelegatePropertyWrapper.getString(DelegatePropertyWrapper.java:162)
> at info.magnolia.jcr.wrapper.DelegatePropertyWrapper.getString(DelegatePropertyWrapper.java:162)
> at info.magnolia.jcr.wrapper.DelegatePropertyWrapper.getString(DelegatePropertyWrapper.java:162)
> at ch.uzh.module.versioning.CreateNestedMap.nestedMap(CreateNestedMap.java:32)
> at ch.uzh.module.versioning.ContextLoggerCommand.execute(ContextLoggerCommand.java:78)
> at info.magnolia.commands.MgnlCommand.executeSynchronized(MgnlCommand.java:80)
> at info.magnolia.commands.MgnlCommand.execute(MgnlCommand.java:69)
> at info.magnolia.commands.chain.ChainBase.execute(ChainBase.java:101)
> at info.magnolia.commands.DelegateCommand.execute(DelegateCommand.java:66):
这是我正在使用的代码：
HashMap<String, Object> map = new LinkedHashMap<>();
PropertyIterator pi;
try {
pi = node.getProperties();
// 获取根节点的属性
while (pi.hasNext()) {
Property p = pi.nextProperty();
String name = p.getName();
String val = p.getString();
map.put(name, val);
} // 结束根节点属性的循环
} catch (RepositoryException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
英文:
I am getting an error when I try to get a multi-valued property in magnolia since I assign it to a String type. How can I properly read a single and multi-valued property (since both are present)?
> javax.jcr.ValueFormatException: property
> /wcmstest/de/search/jcr:mixinTypes is a multi-valued property, so it's
> values can only be retrieved as an array
> at org.apache.jackrabbit.core.PropertyImpl.internalGetValue(PropertyImpl.java:483)
> at org.apache.jackrabbit.core.PropertyImpl.getValue(PropertyImpl.java:510)
> at org.apache.jackrabbit.core.PropertyImpl.getString(PropertyImpl.java:520)
> at info.magnolia.jcr.wrapper.DelegatePropertyWrapper.getString(DelegatePropertyWrapper.java:162)
> at info.magnolia.jcr.wrapper.DelegatePropertyWrapper.getString(DelegatePropertyWrapper.java:162)
> at info.magnolia.jcr.wrapper.DelegatePropertyWrapper.getString(DelegatePropertyWrapper.java:162)
> at info.magnolia.jcr.wrapper.DelegatePropertyWrapper.getString(DelegatePropertyWrapper.java:162)
> at info.magnolia.jcr.wrapper.DelegatePropertyWrapper.getString(DelegatePropertyWrapper.java:162)
> at ch.uzh.module.versioning.CreateNestedMap.nestedMap(CreateNestedMap.java:32)
> at ch.uzh.module.versioning.ContextLoggerCommand.execute(ContextLoggerCommand.java:78)
> at info.magnolia.commands.MgnlCommand.executeSynchronized(MgnlCommand.java:80)
> at info.magnolia.commands.MgnlCommand.execute(MgnlCommand.java:69)
> at info.magnolia.commands.chain.ChainBase.execute(ChainBase.java:101)
> at info.magnolia.commands.DelegateCommand.execute(DelegateCommand.java:66)
> :
This is the code I am using:
HashMap<String, Object> map = new LinkedHashMap<>();
PropertyIterator pi;
try {
pi = node.getProperties();
//Get properties for the root node
while(pi.hasNext())
{
Property p = pi.nextProperty();
String name = p.getName();
String val = p.getString();
map.put(name,val);
}//end of while for properties of root node
} catch (RepositoryException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
答案1
得分: 1
感谢 @reporter 和一些尝试和错误。这里是一个可行的解决方案。
HashMap<String, Object> map = new LinkedHashMap<>();
PropertyIterator pi;
try {
pi = node.getProperties();
//获取根节点的属性
while(pi.hasNext()) {
Property p = pi.nextProperty();
String name = p.getName();
String val;
//确定属性是否为多值
if (p.isMultiple()) {
//多值属性
val = p.getValues().toString();
} else {
//单值属性
val = p.getValue().getString();
}
map.put(name, val);
}//结束根节点属性的循环
} catch (RepositoryException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
英文:
Thanks to @reporter and some trial and error. Here is a working solution.
HashMap<String, Object> map = new LinkedHashMap<>();
PropertyIterator pi;
try {
pi = node.getProperties();
//Get properties for the root node
while(pi.hasNext())
{
Property p = pi.nextProperty();
String name = p.getName();
String val;
//determine if property is multi-value
if (p.isMultiple()) {
//multi-value property
val=p.getValues().toString();
} else {
//single-value property
val = p.getValue().getString();
}
map.put(name,val);
}//end of while for properties of root node
} catch (RepositoryException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
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