code-reuse

How should i write a reusable code in Android for Database. What pattern or architecture should i follow ? Step 1: Make Always different package in Application eg(com.appname.db). Step 2: Create DBHelpar Class on it and Put All method relate db on it,. Step 3: This is All are Common Method. i am pasting code for your reference package com.androidhive.androidsqlite; import java.util.ArrayList; import java.util.List; import android.content.ContentValues; import android.content.Context; import android.database.Cursor; import android.database.sqlite.SQLiteDatabase; import android.database.sqlite

Is there any way to make some sort of parametrized macro on one JSP page and reuse it few times on the same page. JSP tags could be used but I would have to make one file per tag. I've been wanting this functionality for years, and after googling yet again, I wrote my own. I think tag / jsp files & custom tag classes are great, but are often overkill for simple one-offs like you describe. This is how my new "macro" tag now works (here used for simple html rendering of sortable table headers): <%@ taglib prefix="tt" uri="/WEB-INF/tld/tags.tld" %> <!-- define a macro to render a sortable header

Rules (Transact-SQL)[1] are reusable what permitted to overcome the shortcoming of non-re-usability of check constraints. And now I read [1] that: "This feature will be removed in a future version of Microsoft SQL Server. Avoid using this feature in new development work, and plan to modify applications that currently use this feature. We recommend that you use check constraints instead. Check constraints are created by using the CHECK keyword of CREATE TABLE or ALTER TABLE" So, what is instead of rules and why are they deprecated? ==== Update: AlexKuznetsov, are table-level check constraints

I have this reusable pattern to create a table, inspired by http://bl.ocks.org/3687826 , and I have two questions about it. This is the function: d3.table = function(config) { var columns = []; var tbl = function(selection) { if (columns.length == 0) columns = d3.keys(selection.data()[0][0]); console.log(columns) // Creating the table var table = selection.append("table"); var thead = table.append("thead"); var tbody = table.append("tbody"); // appending the header row var th = thead.selectAll("th") .data(columns) th.enter().append("th"); th.text(function(d) { return d }); th.exit().remove() /

I thought it would be convenient to have reusable code, especially for the navigation bar because it will be the same across all of my pages. This way I won't have to go through each page and manually edit each one individually when a change occurs. It seems possible to use iframes, but I tried it and the whole page styling went out of whack. I can fix it but I'm wondering if there's something similar. It would be awesome if something like this could work: var navbar = document.getElementById('navbar'); navbar.innerHtml = url('navigation.txt'); I'm currently working offline on my site so I don