與MarkLogic Java客戶端API

Question

工作我想用MarkLogic的Java客戶端API來運行下面的查詢，但似乎無法找到正確的道路。 查詢如下：

xquery version "1.0-ml"; 

import module namespace search = "http://marklogic.com/appservices/search" 
    at "/MarkLogic/appservices/search/search.xqy"; 

declare variable $searchQuery as xs:string external ; 
declare variable $aggregateFunc as xs:string external ; 

let $searchQuery := 'ticker:CSGN.VX AND (dateRange GE "2015-08-07" AND dateRange LE "2015-08-21")' 
let $query := 
    search:parse($searchQuery, 

    <options xmlns="http://marklogic.com/appservices/search"> 
     <constraint name="dateRange"> 
     <range type="xs:date" facet="false"> 
      <element ns="" name="date"/> 
     </range> 
     </constraint> 
     <constraint name="ticker"> 
     <range type="xs:string" > 
      <element ns="" name="ticker"/> 
     </range> 
     </constraint> 
    </options>, 

    "search:query" 
) 

let $r := 
    search:values(
    'closingPrice', 

    <options xmlns="http://marklogic.com/appservices/search"> 
     <values name="closingPrice"> 
     <range type="xs:double"> 
      <element ns="" name="closingPrice"/> 
     </range> 
     <aggregate apply="avg"/> 
     </values> 
    </options>, 

    $query 
) 

return <result>{$r}</result> 

我一直在使用MarkLogic XCC執行下面的查詢，但需要知道如何實現相同的使用客戶端API。

按照討論中，我形成了以下的查詢但它仍然不返回任何結果，讓我知道，如果事情是錯的。

QueryManager queryMgr = client.newQueryManager(); 

ServerConfigurationManager configManager = client.newServerConfigManager(); 
configManager.newNamespacesManager(); 
QueryOptionsManager optionsMgr = configManager.newQueryOptionsManager(); 

optionsMgr.writeOptions(VALUE_OPTION, new StringHandle(VALUE_OPTIONS)); 
StringQueryDefinition qd = queryMgr.newStringDefinition(VALUE_OPTION); 
qd.setCriteria("ticker:CSGN.VX AND (dateRange GE \"2015-08-07\" AND dateRange LE \"2015-08-21\")"); 

ValuesDefinition vdef = 
    queryMgr.newValuesDefinition("closingPrice", VALUE_OPTION); 


vdef.setQueryDefinition(qd); 

vdef.setAggregate("avg"); 

ValuesHandle results = queryMgr.values(vdef, new ValuesHandle()); 
StringHandle strResults=queryMgr.values(vdef, new StringHandle()); 

當值選項包括：

<options xmlns="http://marklogic.com/appservices/search"> 
    <constraint name="dateRange"> 
    <range type="xs:date" facet="false"> 
     <element ns="" name="date"/> 
    </range> 
    </constraint> 
    <constraint name="ticker"> 
    <range type="xs:string" > 
     <element ns="" name="ticker"/> 
    </range> 
    </constraint> 
<values name="closingPrice"> 
    <range type="xs:double"> 
    <element ns="" name="closingPrice"/> 
    </range> 
</values> 
</options> 

Answer 1

安基塔：

使用Java API，

http://docs.marklogic.com/guide/java/searches#id_83836

一是堅持定義範圍限制的查詢選項和值定義：

<options xmlns="http://marklogic.com/appservices/search"> 
<constraint name="dateRange"> 
    <range type="xs:date" facet="false"> 
    <element ns="" name="date"/> 
    </range> 
</constraint> 
<constraint name="ticker"> 
    <range type="xs:string" > 
    <element ns="" name="ticker"/> 
    </range> 
</constraint> 
<values name="closingPrice"> 
    <range type="xs:double"> 
    <element ns="" name="closingPrice"/> 
    </range> 
</values> 
</options> 

https://github.com/marklogic/java-client-api/blob/master/src/main/java/com/marklogic/client/example/cookbook/StringSearch.java#L73-L91

http://docs.marklogic.com/javadoc/client/com/marklogic/client/admin/QueryOptionsManager.html#writeOptions%28java.lang.String,%20com.marklogic.client.io.marker.QueryOptionsWriteHandle%29

然後，構建的範圍約束的串查詢，與串查詢一個值定義，並執行上的值定義一個值查詢 - 像下面的東西：

QueryManager queryMgr = client.newQueryManager(); 

StringQueryDefinition querydef = queryMgr.newStringDefinition(
    OPTIONS_NAME); 
querydef.setCriteria(QUERY_TEXT); 

ValuesDefinition valuesdef = queryMgr.newValuesDefinition(
    "closingPrice", OPTIONS_NAME); 
valuesdef.setQueryDefinition(querydef); 

// or any other handle 
StringHandle readHandle = 
    queryMgr.values(valuesdef, new StringHandle()); 

http://docs.marklogic.com/javadoc/client/com/marklogic/client/query/QueryManager.html#newStringDefinition%28java.lang.String%29

http://docs.marklogic.com/javadoc/client/com/marklogic/client/query/QueryManager.html#newValuesDefinition%28java.lang.String,%20java.lang.String%29

http://docs.marklogic.com/javadoc/client/com/marklogic/client/query/ValuesDefinition.html#setQueryDefinition%28com.marklogic.client.query.ValueQueryDefinition%29

http://docs.marklogic.com/javadoc/client/com/marklogic/client/query/QueryManager.html#values%28com.marklogic.client.query.ValuesDefinition,%20T%29

希望幫助，