jackrabbit查询语句——SQL

接触到的 jackrabbit支持SQL、SQL2、XPATH查询以下查询是SQL查询

分页查询

// make SQL query

QueryManager queryManager = workspace.getQueryManager();

// create query

String sqlStatement = "SELECT * FROM nt:unstructured";

QueryImpl query = (QueryImpl)queryManager.createQuery(sqlStatement, Query.SQL);

//return starting with second result

query.setOffset(1);

// return 3 results

query.setLimit(3);

// execute query and fetch result

QueryResult result = query.execute();

 

查询所有

String sqlStatement = "SELECT * FROM nt:base";

 

查询 primary type 是 nt:file 的节点

root

document1 primarytype = "nt:unstructured" mixintype = "mix:title"

document2 primarytype = "nt:file" mixintype = "mix:lockable"

document3 primarytype = "nt:file" mixintype = "mix:title"

 

String sqlStatement = "SELECT * FROM nt:file";

 

结果：will return "document2" and "document3"

 

查询 mixin type "mix:title" 的节点

 

String sqlStatement = "SELECT * FROM mix:title";

 

结果：will return "document1" and "document3".

 

 

查询 mixin type "mix:title" 的prop_pagecount >90的节点

 

root

document1 (mix:title) jcr:title="War and peace" prop_pagecount=1000

document2 (mix:title) jcr:title="Cinderella" prop_pagecount=100

document3 (mix:title) jcr:title="Puss in Boots" prop_pagecount=60

 

String sqlStatement = "SELECT jcr:title FROM mix:title WHERE prop_pagecount < 90";

 

结果：The NodeIterator will return "document3".

 

 

 

 

查询 mixin type "mix:title" 的并且title以'P' 开头的的节点

 

root

document1 (mix:title) jcr:title="Star wars" jcr:description="Dart rules!!"

document2 (mix:title) jcr:title="Prison break" jcr:description="Run, Forest, run ))"

document3 (mix:title) jcr:title="Panopticum" jcr:description="It's imagine film"

 

String sqlStatement = "SELECT * FROM mix:title WHERE jcr:title LIKE 'P%'";

 

结果：The NodeIterator will return "document2" and "document3".

 

 

 

查询 LIKE查询中特殊字符转义问题  

查询type 是 'mix:title' 标题以 'P%ri' 开头的节点  

 

root

document1 (mix:title) jcr:title="Star wars" jcr:description="Dart rules!!"

document2 (mix:title) jcr:title="P%rison break" jcr:description="Run, Forest, run ))"

document3 (mix:title) jcr:title="Panopticum" jcr:description="It's imagine film"

 

转义符号自己定义

String sqlStatement = "SELECT * FROM mix:title WHERE jcr:title LIKE 'P#%ri%' ESCAPE '#'";

 

String sqlStatement = "SELECT * FROM mix:title WHERE jcr:title LIKE 'P\%ri%' ESCAPE '\'";

 

结果：NodeIterator will return "document2".

 

 

 

非 NOT

查询type 是 'mix:title' 标题中不以P开头的节点

 

root

document1 (mix:title) jcr:title="Star wars" jcr:description="Dart rules!!"

document2 (mix:title) jcr:title="Prison break" jcr:description="Run, Forest, run ))"

document3 (mix:title) jcr:title="Panopticum" jcr:description="It's imagine film"

 

String sqlStatement = "SELECT * FROM mix:title WHERE NOT jcr:title LIKE 'P%'";

 

结果：NodeIterator will return "document1".

 

 

与 AND

查询type 是 'mix:title' 并且 'jcr:description' 等于"fairytale" 并且 "prop_pagecount" 小于 90.

 

root

document1 (mix:title) jcr:title="War and peace" jcr:description="novel" prop_pagecount=1000

document2 (mix:title) jcr:title="Cinderella" jcr:description="fairytale" prop_pagecount=100

document3 (mix:title) jcr:title="Puss in Boots" jcr:description="fairytale" prop_pagecount=60

 

String sqlStatement = "SELECT * FROM mix:title WHERE jcr:description = 'fairytale' AND prop_pagecount > 90";

 

结果：NodeIterator will return "document2".

 

 

 

 

或 OR

查询 type是'mix:title'   'jcr:title' 等于 "Cinderella"或者"jcr:description" 等于 "novel".

 

 

root

document1 (mix:title) jcr:title="War and peace" jcr:description="novel"

document2 (mix:title) jcr:title="Cinderella" jcr:description="fairytale"

document3 (mix:title) jcr:title="Puss in Boots" jcr:description="fairytale"

 

String sqlStatement = "SELECT * FROM mix:title WHERE jcr:title = 'Cinderella' OR jcr:description = 'novel'";

 

结果：NodeIterator will return "document1" and "document2".

 

 

 

为空  NULL

查询 type是'mix:title'   jcr:description 为空.

 

root

document1 (mix:title) jcr:title="Star wars" jcr:description="Dart rules!!"

document2 (mix:title) jcr:title="Prison break" jcr:description="Run, Forest, run ))"

document3 (mix:title) jcr:title="Titanic"

 

String sqlStatement = "SELECT * FROM mix:title WHERE jcr:description IS NULL";

 

结果：NodeIterator will return "document3".

 

 

 

 

不区分大小写  UPPER  LOWER

查询 type是'mix:title'  'jcr:title' 为不分大小写的 'casesensitive' .

 

root

document1 (mix:title) jcr:title="CaseSensitive"

document2 (mix:title) jcr:title="casesensitive"

document3 (mix:title) jcr:title="caseSENSITIVE"

 

String sqlStatement = "SELECT * FROM mix:title WHERE UPPER(jcr:title) = 'CASESENSITIVE'";

String sqlStatement = "SELECT * FROM mix:title WHERE LOWER(jcr:title) = 'casesensitive'";

 

两条语句返回相同结果：

NodeIterator will return "document1", "document2" and "document3" (in all examples).

 

 

 

时间比较

查询 primary type 是"nt:resource" jcr:lastModified 的值大于2006-06-04 并且小于2008-06-04.

 

root

document1 (nt:file)

jcr:content (nt:resource) jcr:lastModified="2006-01-19T15:34:15.917+02:00"

document2 (nt:file)

jcr:content (nt:resource) jcr:lastModified="2005-01-19T15:34:15.917+02:00"

document3 (nt:file)

jcr:content (nt:resource) jcr:lastModified="2007-01-19T15:34:15.917+02:00"

 

引入时间戳

// create query

StringBuffer sb = new StringBuffer();

sb.append("select * from nt:resource where ");

sb.append("( jcr:lastModified >= TIMESTAMP '");

sb.append("2006-06-04T15:34:15.917+02:00");

sb.append("' )");

sb.append(" and ");

sb.append("( jcr:lastModified <= TIMESTAMP '");

sb.append("2008-06-04T15:34:15.917+02:00");

sb.append("' )");

String sqlStatement = sb.toString();

 

返回结果：NodeIterator will return "/document3/jcr:content".

 

 

 

 

 

Name 函数 fn:name()

查询primary type 为 'nt:file'并且节点名称为'document'.

root

document1 (nt:file)

file (nt:file)

somename (nt:file)

 

函数 fn:name()

String sqlStatement = "SELECT * FROM nt:file WHERE fn:name() = 'document'";

 

返回结果：return the node whose fn:name equals "document".

 

 

 

多值问题

查询primary type 为'nt:unstructured' 属性 'multiprop' 值既包含 "one" 又包含 "two"

 

root

node1 (nt:unstructured) multiprop = [ "one","two" ]

node2 (nt:unstructured) multiprop = [ "one","two","three" ]

node3 (nt:unstructured) multiprop = [ "one","five" ]

 

String sqlStatement = "SELECT * FROM nt:unstructured WHERE multiprop = 'one' AND multiprop = 'two'";

返回结果：The NodeIterator will return "node1" and "node2".

 

 

 

精确路径

查询primary type 为'nt:file' 位于精确路径"/folder1/folder2/document1"下的

 

root

folder1 (nt:folder)

folder2 (nt:folder)

document1 (nt:file) // This document we want to find

folder3 (nt:folder)

document1 (nt:file)

String sqlStatement = "SELECT * FROM nt:file WHERE jcr:path = '/folder1/folder2/document1'";返回结果：The NodeIterator will return expected "document1".

 

 

只返回某个路径下的子节点，不返回更深一级节点

查询primary type 为'nt:folder' 位于路径"/folder1/folder2"下的子节点，但不返回更深一级节点

 

rroot

folder1 (nt:folder)

folder2 (nt:folder)

folder3 (nt:folder) // This node we want to find

folder4 (nt:folder) // This node is not child but a descendant of '/folder1/folder2/'.

folder5 (nt:folder) // This node we want to

 

String sqlStatement = "SELECT * FROM nt:folder WHERE jcr:path LIKE '/folder1/folder2/%' AND NOT jcr:path LIKE '/folder1/folder2/%/%'";

返回结果：The NodeIterator will return "folder3" and "folder5".

 

 

返回某个路径下的子孙节点

查询primary type 为'nt:folder' 位于路径"/folder1/folder2"下的子孙节点

rroot

folder1 (nt:folder)

folder2 (nt:folder)

folder3 (nt:folder) // This node we want to find

folder4 (nt:folder) // This node we want to find

folder5 (nt:folder) // This node we want to

 

String sqlStatement = "SELECT * FROM nt:folder WHERE jcr:path LIKE '/folder1/folder2/%' ";

返回结果：The NodeIterator will return "folder3", "folder4" and "folder5" nodes.

 

 

 

 

排序查询

查询mixin type 为'mix:title' 根据 prop_pagecount 大小排序

 

root

document1 (mix:title) jcr:title="War and peace" jcr:description="roman" prop_pagecount=4

document2 (mix:title) jcr:title="Cinderella" jcr:description="fairytale" prop_pagecount=7

document3 (mix:title) jcr:title="Puss in Boots" jcr:description="fairytale" prop_pagecount=1

 

String sqlStatement = "SELECT * FROM mix:title ORDER BY prop_pagecount ASC";

 

返回结果：The NodeIterator will return nodes in the following order "document3", "document1", "document2".

 

 

 

分值排序

查询mixin type 为'mix:title' ，包含词{'brown','fox','jumps'}按分值排序。

 

root

document1 (mix:title) jcr:description="The quick brown fox jumps over the lazy dog."

document2 (mix:title) jcr:description="The brown fox lives in the forest."

document3 (mix:title) jcr:description="The fox is a nice animal."

 

String sqlStatement = "SELECT * FROM mix:title WHERE CONTAINS(*, 'brown OR fox OR jumps') ORDER BY jcr:score() ASC";

 

返回结果：will return nodes in the following order: "document3", "document2", "document1".

 

 

 

 

 

包含函数 CONTAINS

查询mixin type 为'mix:title' ，jcr:description包含词"forest"。

 

root

document1 (mix:title) jcr:description = "The quick brown fox jumps over the lazy dog."

document2 (mix:title) jcr:description = "The brown fox lives in a forest." // This is the node we want to find

document3 (mix:title) jcr:description = "The fox is a nice animal."

document4 (nt:unstructured) jcr:description = "There is the word forest, too."

 

String sqlStatement = "SELECT \* FROM mix:title WHERE CONTAINS(jcr:description, 'forest')";

 

返回结果：will return "document2".

 

 

包含函数 CONTAINS

查询mixin type 为'mix:title' ，任何属性值中包含词"break"。

 

root

document1 (mix:title) jcr:title ='Star Wars' jcr:description = 'Dart rules!!'

document2 (mix:title) jcr:title ='Prison break' jcr:description = 'Run, Forest, run ))'

document3 (mix:title) jcr:title ='Titanic' jcr:description = 'An iceberg breaks a ship.'

 

String sqlStatement = "SELECT * FROM mix:title WHERE CONTAINS(*,'break')";

 

返回结果：will return "document2" and "document3".

 

1. 忽略重音符号

é，è，à等重音进行标准化

参考网址：

https://docs.jboss.org/exojcr/1.12.13-GA/developer/en-US/html/ch-jcr-query-usecases.html#JCR.OrderByScore