hierarchy

问题 I love Eclipse's hierarchy view which quickly shows all the subtypes and supertypes of my Java classes and interfaces. However, the results I am looking for are made confusing by the fact they also show all the types from my unit tests. While I find this helpful at time, I mostly find it annoying. Any way to filter this? 回答1: In the Hierarchy View, select the menu, and then choose "Select a Working Set". Create a new Working Set that includes everything except the Test classes. Use the new

问题 What are my options for viewing hierarchies in iOS? In OSX I have the option of using NSOutlineView . Ideally I should be able to support at least 3 levels. 回答1: Not much. Table views support sections and rows, which gives you 2 levels. You could use a UICollectionView and roll your own hierarchy of data, but I don't think there is an equivalent to NSOutlineView in iOS. The UI Elements are designed for the small screen on a phone, where you don't really have enough space to present multiple

问题 We have a mulch-tenancy and I need to search and fetch in a huge appengine datastore based on an indexed attribute range and client id. Does usage of Ancestor Paths make it efficient ? Alternatively Same can be done using an additional filter e.g. to get the top 100 salaries via objectify Key<Clients> clientIdKey = Key.create(Clients.class, 500) ofy().load().type(Salaries.class).ancestor(clientIdKey).order("-salary").limit(100).list() Alternatively just ofy().load().type(Salaries.class)

问题 I am facing problem with creating some metadata structure inside annotations. We are using annotations for define special attributes for hibernate entity attributes but it might be usable everywhere. I want to create condition which represent these structure: attribute1 = ... OR (attribute2 = ... AND attribute3 = ...) Problem is that I need to define some "tree" structure using this annotations. Here is some design I want to reach: @interface Attribute { ... some attributes ... } @interface

问题 I've been struggling a bit about how to deal with this situation: I have a table structured as follow: Family_code | Parent_Family_Code | .... 1 2 2 4 3 6 4 3 ...................... When a user is searching for a specific family code, I need to return the entire path (up to 10 levels max) , so for example for family_code = 1 I'll need: Family_code | parent_1 | p_2 | p_3 | p_4 | p_5 | ..... 1 2 4 3 6 null null..... I know I can use sys_connect_by_path() which will bring me the expected result

问题 I have a method that is trying to take in a list. This list can contain data and other lists. The end goal is to try to convert something like this ["a", "b", ["c", "d"]] into <ol> <li> <b>a</b> </li> <li> <b>b</b> </li> <ol> <li> <b>c</b> </li> <li> <b>d</b> </li> </ol> </ol> The code is: function $(tagName) { return document.createElement(tagName); } //returns an html element representing data //data should be an array or some sort of value function tagMaker(data) { tag = null; if(data

问题 I have some locality tables in a PostgreSQL database: Table loc -- the places themselves --------- | id | name | 1 | Park X | 2 | City A | 3 | City B Table locdad -- the hierarchical relationship between places ------------ | id | dad | loc | 1 | 2 | 1 | 1 | 3 | 1 This describes a National Park "X" that covers city A and city B, i.e. the park has two "fathers" in the hierarchical scheme. When I do a joined query, I get two lines for this park: select l.id,l.name loc,l1.name dad from loc l

问题 The initial motivation for this one, was to display Oracles' actual execution plans, saved in GV$SQL_PLAN, in a visual, clear way. I've attached my suggested solutions. Please feel free to add yours, as long as it fulfills the requirements. Please mention the database name your solution was written for. Requirements Input A table containing columns "id" (node's id) and "pid" (node's parent id). Output The result should be a an ASCII art graph (see example below) Each pair of "id" and "pid"

问题 I have an MDX query IIF ( IsLeaf([PnL].[PnL_A].CurrentMember) , [Measures].[PnL - Plan] * [PnL].[Flag 5].CurrentMember.MemberValue ,Sum ( [PnL].[PnL_A].CurrentMember.Children ,[Measures].[PnL- Plan (signed)] ) ) What it does: The whole thing represents profit and loss. Unfortunately, it is constructed in a way that there are two columns: value of a profit or loss, and flag in the other column. So if the flag ( [PnL].[Flag 5] ) is set to -1 , the value ( [Measures].[PnL - Plan] ) is a loss, if

问题 I am currently trying to flatten a large recurisve XML document, so that all the nested elements stay on root level but get an additional new attribute ("parent_id=...") to still keep the relations between the nodes. Each node has a lot of sub-nodes which i also need to grab, so the content has to stay the same. The file is very large (500k Rows - 33 MB in Size) Example XML: <product-catalog ...> <category id="1"> <content> ... </content> <category id="2"> <content> ... </content> </category>