Question

我正在玩JCR存储库 - 特别是Jackrabbit - 用于存储当前项目的数据。一切都很顺利，但遗憾的是有时很难找到文档。我现在正在努力的是为某些测试设置单元测试数据。我已经运行了一个内存中的Jackrabbit，并正确地将我的Nodetypes.cnd和data.xml文件导入其中，以便我有种子数据进行测试。但是，我无法确定如何从data.xml文件导入节点具有多个具有相同名称的属性。

具体来说，由于数据结构的方式，我有一个规则节点链接到其他规则节点 - 其中一个规则实际上按照其他规则工作。我已经通过在Rules节点上具有“rule（PATH）multiple”的属性来实现这一点，因此只需要链接到规则节点的节点路径列表。我可以通过编写

轻松地在我的xml中添加一个链接

<rule1 name="Rule #1" description="This is Rule number 1" rule="/rules/rule2" />

正确创建一个名为“rule1”的规则，该规则具有指向“rule2”的链接。我希望能够使用session.importXML（）方法创建此规则，其中它有多个链接...我已经尝试了

<rule1 name="Rule #1" description="This is Rule number 1" rule="/rules/rule2,/rules/rule3" />
<rule1 name="Rule #1" description="This is Rule number 1" rule="/rules/rule2" rule="/rules/rule3" />
<rule1 Rule #1" description="This is Rule number 1">
    <@rule>/rules/rule2</@rule>
    <@rule>/rules/rule3</@rule>
</rule1>

这些都没有奏效。实际上 - 显然已经足够了 - 第二个和第三个甚至都不解析为XML。

有办法做到这一点吗？或者，我是否需要更改导入过程以使其在此处有所不同？

导入完全是用

完成的

    InputStream xml = getClass().getResourceAsStream("/jcr/data.xml");
    session.importXML(session.getRootNode().getPath(), xml, ImportUUIDBehavior.IMPORT_UUID_CREATE_NEW);

所以根本没什么特别的。

Answer 1

我假设“data.xml”是您要导入存储库的文档视图XML。 Jackrabbit没有定义如何从/向存储库的文档视图导入/导出具有多个值的多值属性。从JCR 2.0 spec来看，多值属性的解释取决于实现。但是，Jackrabbit确实支持从存储库的系统视图导入多值属性。出口相同。

您可以使用Session.exportSystemView（）API下载或导出存储库的系统视图，也可以为您的测试存储库手动创建一个。

这是一个例子。注 - “car：engines（string）multiple”。

<car='http://www.modeshape.org/examples/cars/1.0'>
[car:Car] > nt:unstructured, mix:created, mix:referenceable
  - car:maker (string)
  - car:model (string)
  - car:year (string) < '(19|20)[0-9]{2}'  // any 4 digit number starting with '19' or '20'
  - car:msrp (string) < '[$][0-9]{1,3}[,]?[0-9]{3}([.][0-9]{2})?'   // of the form "$X,XXX.ZZ", "$XX,XXX.ZZ" or "$XXX,XXX.ZZ"
                                                       // where '.ZZ' is optional
  - car:userRating (long) < '[1,5]'                        // any value from 1 to 5 (inclusive)
  - car:valueRating (long) < '[1,5]'                       // any value from 1 to 5 (inclusive)
  - car:mpgCity (long) < '(0,]'                            // any value greater than 0
  - car:mpgHighway (long) < '(0,]'                         // any value greater than 0
  - car:lengthInInches (double) < '(0,]'                   // any value greater than 0
  - car:wheelbaseInInches (double) < '(0,]'                // any value greater than 0
  - car:alternateModels (reference)  < 'car:Car'
  - car:engines (string) multiple

以下是包含上述CND的存储库的示例系统视图XML。请注意，多值属性“car：engines”表示为列表元素。

<sv:property sv:name="car:engines" sv:type="String" sv:multiple="true">
    <sv:value>1.8L</sv:value>
    <sv:value>1.5L</sv:value>
</sv:property>

可以使用Session.importXML（）API将此系统视图XML导入到另一个存储库。

<?xml version="1.0" encoding="UTF-8"?>
<sv:node sv:name="Hybrid" xmlns:fn="http://www.w3.org/2005/xpath-functions" xmlns:fn_old="http://www.w3.org/2004/10/xpath-functions"  xmlns:sv="http://www.jcp.org/jcr/sv/1.0" xmlns:car="http://www.modeshape.org/examples/cars/1.0" xmlns:rep="internal" xmlns:nt="http://www.jcp.org/jcr/nt/1.0">
    <sv:property sv:name="jcr:primaryType" sv:type="Name">
        <sv:value>nt:unstructured</sv:value>
    </sv:property>
    <sv:property sv:name="jcr:mixinTypes" sv:type="Name" sv:multiple="true">
        <sv:value>mix:referenceable</sv:value>
    </sv:property>
    <sv:property sv:name="jcr:uuid" sv:type="String">
        <sv:value>7e999653-e558-4131-8889-af1e16872f4d</sv:value>
    </sv:property>
    <sv:node sv:name="Toyota Prius">
        <sv:property sv:name="jcr:primaryType" sv:type="Name">
            <sv:value>car:Car</sv:value>
        </sv:property>
        <sv:property sv:name="jcr:uuid" sv:type="String">
            <sv:value>0111cbd0-8f9b-4588-8ded-d66907174bcd</sv:value>
        </sv:property>
        <sv:property sv:name="car:engines" sv:type="String" sv:multiple="true">
            <sv:value>1.8L</sv:value>
            <sv:value>1.5L</sv:value>
        </sv:property>
        <sv:property sv:name="car:maker" sv:type="String">
            <sv:value>Toyota</sv:value>
        </sv:property>
        <sv:property sv:name="car:model" sv:type="String">
            <sv:value>Prius</sv:value>
        </sv:property>
        <sv:property sv:name="car:mpgCity" sv:type="Long">
            <sv:value>48</sv:value>
        </sv:property>
        <sv:property sv:name="car:mpgHighway" sv:type="Long">
            <sv:value>45</sv:value>
        </sv:property>
        <sv:property sv:name="car:msrp" sv:type="String">
            <sv:value>$21,500</sv:value>
        </sv:property>
        <sv:property sv:name="car:userRating" sv:type="Long">
            <sv:value>4</sv:value>
        </sv:property>
        <sv:property sv:name="car:valueRating" sv:type="Long">
            <sv:value>5</sv:value>
        </sv:property>
        <sv:property sv:name="car:year" sv:type="String">
            <sv:value>2008</sv:value>
        </sv:property>
        <sv:property sv:name="jcr:created" sv:type="Date">
            <sv:value>2011-06-13T23:45:59.175-04:00</sv:value>
        </sv:property>
        <sv:property sv:name="jcr:createdBy" sv:type="String">
            <sv:value>admin</sv:value>
        </sv:property>
        <sv:node sv:name="carImage">
            <sv:property sv:name="jcr:primaryType" sv:type="Name">
                <sv:value>nt:file</sv:value>
            </sv:property>
            <sv:property sv:name="jcr:created" sv:type="Date">
                <sv:value>2011-06-13T23:45:59.181-04:00</sv:value>
            </sv:property>
            <sv:property sv:name="jcr:createdBy" sv:type="String">
                <sv:value>admin</sv:value>
            </sv:property>
            <sv:node sv:name="jcr:content">
                <sv:property sv:name="jcr:primaryType" sv:type="Name">
                    <sv:value>nt:resource</sv:value>
                </sv:property>
                <sv:property sv:name="jcr:uuid" sv:type="String">
                    <sv:value>7de51be4-1466-414b-a3ff-d840095e61bf</sv:value>
                </sv:property>
                <sv:property sv:name="jcr:data" sv:type="Binary">
                    <sv:value/>
                </sv:property>
                <sv:property sv:name="jcr:encoding" sv:type="String">
                    <sv:value>binary</sv:value>
                </sv:property>
                <sv:property sv:name="jcr:lastModified" sv:type="Date">
                    <sv:value>2011-05-18T16:14:30.000-04:00</sv:value>
                </sv:property>
                <sv:property sv:name="jcr:lastModifiedBy" sv:type="String">
                    <sv:value>admin</sv:value>
                </sv:property>
                <sv:property sv:name="jcr:mimeType" sv:type="String">
                    <sv:value>image/jpeg</sv:value>
                </sv:property>
            </sv:node>
        </sv:node>
        <sv:node sv:name="carImage">
            <sv:property sv:name="jcr:primaryType" sv:type="Name">
                <sv:value>nt:file</sv:value>
            </sv:property>
            <sv:property sv:name="jcr:created" sv:type="Date">
                <sv:value>2011-06-13T23:45:59.322-04:00</sv:value>
            </sv:property>
            <sv:property sv:name="jcr:createdBy" sv:type="String">
                <sv:value>admin</sv:value>
            </sv:property>
            <sv:node sv:name="jcr:content">
                <sv:property sv:name="jcr:primaryType" sv:type="Name">
                    <sv:value>nt:resource</sv:value>
                </sv:property>
                <sv:property sv:name="jcr:uuid" sv:type="String">
                    <sv:value>6ad955e2-6e75-4833-904c-6ee3bf7c18b6</sv:value>
                </sv:property>
                <sv:property sv:name="jcr:data" sv:type="Binary">
                    <sv:value/>
                </sv:property>
                <sv:property sv:name="jcr:encoding" sv:type="String">
                    <sv:value>binary</sv:value>
                </sv:property>
                <sv:property sv:name="jcr:lastModified" sv:type="Date">
                    <sv:value>2011-05-18T16:14:30.000-04:00</sv:value>
                </sv:property>
                <sv:property sv:name="jcr:lastModifiedBy" sv:type="String">
                    <sv:value>admin</sv:value>
                </sv:property>
                <sv:property sv:name="jcr:mimeType" sv:type="String">
                    <sv:value>image/jpeg</sv:value>
                </sv:property>
            </sv:node>
        </sv:node>
    </sv:node>
    <sv:node sv:name="Toyota Highlander">
        <sv:property sv:name="jcr:primaryType" sv:type="Name">
            <sv:value>car:Car</sv:value>
        </sv:property>
        <sv:property sv:name="jcr:uuid" sv:type="String">
            <sv:value>99b2afd4-74e8-4a45-a6d2-623bfc66387a</sv:value>
        </sv:property>
        <sv:property sv:name="car:maker" sv:type="String">
            <sv:value>Toyota</sv:value>
        </sv:property>
        <sv:property sv:name="car:model" sv:type="String">
            <sv:value>Highlander</sv:value>
        </sv:property>
        <sv:property sv:name="car:mpgCity" sv:type="Long">
            <sv:value>27</sv:value>
        </sv:property>
        <sv:property sv:name="car:mpgHighway" sv:type="Long">
            <sv:value>25</sv:value>
        </sv:property>
        <sv:property sv:name="car:msrp" sv:type="String">
            <sv:value>$34,200</sv:value>
        </sv:property>
        <sv:property sv:name="car:userRating" sv:type="Long">
            <sv:value>4</sv:value>
        </sv:property>
        <sv:property sv:name="car:valueRating" sv:type="Long">
            <sv:value>5</sv:value>
        </sv:property>
        <sv:property sv:name="car:year" sv:type="String">
            <sv:value>2008</sv:value>
        </sv:property>
        <sv:property sv:name="jcr:created" sv:type="Date">
            <sv:value>2011-06-13T23:45:59.191-04:00</sv:value>
        </sv:property>
        <sv:property sv:name="jcr:createdBy" sv:type="String">
            <sv:value>admin</sv:value>
        </sv:property>
    </sv:node>
</sv:node>

将XML导入JCR存储库 - 多值属性

1 个答案: