schema

Xml Schema: Nodes with same name but different types based on attribute value

由 一笑奈何 提交于 2019-12-24 08:26:06
问题 I need a schema that accomplished this: <object type="possession"> <property name="VIN">1111111111111111</property> <property name="Year">2003</property> <property name="Make">Chevrolet</property> </object> The "VIN" property must be 17 characters The "Year property must be of type gYear The "Make" property must conform to an enumeration of {Ford, Chevrolet, Mazda} Right now I have this: <?xml version="1.0" encoding="utf-8"?> <xs:schema attributeFormDefault="unqualified" elementFormDefault=

Flattening mongoDB schema

由 ◇◆丶佛笑我妖孽 提交于 2019-12-24 08:18:06
问题 I have an existing deeply nested mongoDB schema that I must flatten as I have a complex query that cannot be efficiently made with the current structure. Here is the MWE of the schema: db.test.insert({ "_id" : ObjectId("58e574a768afb6085ec3a388"), "details" : [ { "_id" : ObjectId("58e55f0f68afb6085ec3a2cc"), "a" : [ { "unit" : "08", "size" : "5", "pos" : "Far", "_id" : ObjectId("58e55f0f68afb6085ec3a2d0") } ], "b" : [ { "unit" : "08", "size" : "5", "pos" : "Far", "_id" : ObjectId(

why cant see my schema size

由 久未见 提交于 2019-12-24 08:01:01
问题 If you google for "postgresql table size" you get this nice query. https://wiki.postgresql.org/wiki/Disk_Usage SELECT *, pg_size_pretty(total_bytes) AS total , pg_size_pretty(index_bytes) AS INDEX , pg_size_pretty(toast_bytes) AS toast , pg_size_pretty(table_bytes) AS TABLE FROM ( SELECT *, total_bytes-index_bytes-COALESCE(toast_bytes,0) AS table_bytes FROM ( SELECT c.oid,nspname AS table_schema, relname AS TABLE_NAME , c.reltuples AS row_estimate , pg_total_relation_size(c.oid) AS total

force open android app through schema

由 ☆樱花仙子☆ 提交于 2019-12-24 07:09:39
问题 Here is my story. I have an android app that shares my website link. on Android devices I want to check if the user has my android app open android application and show corresponding content to that link, but if do not have my app open up that link in the browser. I use DeepLinkDispatch for this, but I have a problem, when user click on shared link, android ask client to choose which app open this link (include my app), but i want to force open my app. (if installed on device) 回答1: That is

Spring MVC

由 天涯浪子 提交于 2019-12-24 07:04:53
1.Spring MVC的基本架构 2.组件说明： 以下组件通常使用框架提供实现： DispatcherServlet：前端控制器 用户请求到达前端控制器，它就相当于mvc模式中的c，dispatcherServlet是整个流程控制的中心，由它调用其它组件处理用户的请求，dispatcherServlet的存在降低了组件之间的耦合性。 HandlerMapping：处理器映射器 HandlerMapping负责根据用户请求url找到Handler即处理器，springmvc提供了不同的映射器实现不同的映射方式，例如：配置文件方式，实现接口方式，注解方式等。 Handler：处理器 Handler 是继DispatcherServlet前端控制器的后端控制器，在DispatcherServlet的控制下Handler对具体的用户请求进行处理。 由于Handler涉及到具体的用户业务请求，所以一般情况需要程序员根据业务需求开发Handler。 HandlAdapter：处理器适配器 通过HandlerAdapter对处理器进行执行，这是适配器模式的应用，通过扩展适配器可以对更多类型的处理器进行执行。 ViewResolver：视图解析器 View Resolver负责将处理结果生成View视图，View Resolver首先根据逻辑视图名解析成物理视图名即具体的页面地址

Change schema of multiple PostgreSQL functions in one operation?

由 眉间皱痕 提交于 2019-12-24 04:24:10
问题 Recently I needed to move objects from PostgreSQL's default schema "public" to another schema. If found this post which shows how to move tables which was great, but I also need to move the functions. 回答1: You could refine the loop some more (demonstrating only the second query ): DO $do$ DECLARE r record; sql text = ''; BEGIN FOR r IN SELECT p.proname, pg_get_function_identity_arguments(p.oid) AS params FROM pg_proc p JOIN pg_namespace n ON n.oid = p.pronamespace WHERE nspname = 'public' --

Not sure why my XML file is coming up as invalid/no grammar found and why my schema is not validating either?

由 对着背影说爱祢 提交于 2019-12-24 03:37:17
问题 I am somewhat new to XML, but I have been unable to figure out these errors. This is my first time attempting to create "advanced" schemas, but I was uncertain about importing and how exactly to reference the "urlset" in the schema... These are the errors: Ln 14 Col 7 - Document is invalid: no grammar found. Ln 14 Col 7 - Document root element "sites", must match DOCTYPE root "null". 2 Errors ... Ln 31 Col 98 - s4s-att-invalid-value: Invalid attribute value for 'ref' in element 'element'.

How to manage many schemas on one database using hibernate

由 南笙酒味 提交于 2019-12-24 03:34:33
问题 I have one database that has many schemas, one per client. We want to create a web application to be access online by the clients, the application should get the schema on runtime, I think in use Springframework and Hibernate to access the database. It's possible to use hibernate to make this works? Exist another framework for this? 回答1: Hibernate gets all JDBC connections from a connection factory, and this connection factory settings determine the DB schema against which all Hibernate

spring自带定时器

由 余生长醉 提交于 2019-12-24 02:29:04
注解模式的spring定时器 1 , 首先要配置我们的spring.xml xmlns 多加下面的内容、 xmlns:task="http://www.springframework.org/schema/task " 然后xsi:schemaLocation多加下面的内容、 1. http://www.springframework.org/schema/task 2. http://www.springframework.org/schema/task/spring- task-3.1.xsd 2,task任务扫描注解 <task:annotation-driven/> 3,配置扫描位置是： <context:annotation-config/> <bean class="org.springframework.beans.factory.annotation.Au towiredAnnotationBeanPostProcessor"/> <context:component-scan base- package="com.jk.spring"/> 4 ,写一个接口 public interface SpringHorodateurI { public void myTest(); } 5,接口实现类 //import org.springframework

How to make “use” attribute (required/optional) depend on another value?

由 醉酒当歌 提交于 2019-12-24 02:25:10
问题 I'm trying to do some specific stuff in an XSD XML Schema. I want to set an element as use="required" , only if there a specific value to an attribute of another element. Example: <udi att1="all"> <name att2="dsd"/> <phone att3="dsd"/> </udi> I want the phone element to be required, only if the att1 value is all . I was told that XPath could work for this - or is there a better way? 回答1: XML is not relational, it's hierarchical. Schemas are designed to enforce rules on nesting, not on rules
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