tag1216’s gists

tag1216 / ApplicationContextProvider

Created December 17, 2014 05:49

SpringでいつでもどこでもApplicationContextを取得する

	@Component
	public class ApplicationContextProvider implements ApplicationContextAware {
	private static ApplicationContext context;

	public static ApplicationContext getApplicationContext() {
	return context;
	}
	@Override
	public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
	context = applicationContext;

tag1216 / Decorder.java

Last active August 29, 2015 14:11

Hibernateでenumをコード値で保存

	/**
	* コード値からenumインスタンスを検索するクラス
	*
	* http://d.hatena.ne.jp/penult/20110523/1306161406
	*
	*/
	public class Decoder<K extends Serializable, V extends Encodable<K>> {
	private Map<K, V> map;

	private Decoder(V[] values) {

tag1216 / Ascii.java

Created December 17, 2014 06:03

Ascii文字制約

	/**
	* Ascii文字制約
	*/
	@Documented
	@Target({ METHOD, FIELD, ANNOTATION_TYPE, CONSTRUCTOR, PARAMETER })
	@Retention(RetentionPolicy.RUNTIME)
	@Constraint(validatedBy = {})
	@Pattern(regexp = "[\\x00-\\x7F]*")
	public @interface Ascii {
	String message() default "dv3j.core.validation.Ascii.message";

tag1216 / Unique.java

Created December 17, 2014 06:04

ユニーク制約チェック

	@Documented
	@Constraint(validatedBy = UniqueValidator.class)
	@Target({ ElementType.TYPE})
	@Retention(RetentionPolicy.RUNTIME)
	public @interface Unique {
	String message() default "dv3j.core.validation.Unique.message";
	Class<?>[] groups() default {};
	Class<? extends Payload>[] payload() default {};
	Class<?> entity();
	String[] property();

tag1216 / DomNode.java

Created December 17, 2014 06:06

DomツリーからXPathでノードを選択するクラス。

	/**
	* DomツリーからXPathでノードを選択するクラス。
	*/
	public class DomNode {

	private static XPathFactory xpathFactory = XPathFactory.newInstance();

	private Optional<Node> node;

	public DomNode(Node node) {

tag1216 / ExampleGroupBy.java

Created December 18, 2014 06:13

Collectors.groupingBy()でList<? extends String>をcollect

	Map<Integer, List<String>> list4 = Stream.of("a", "b")
	.collect(Collectors.groupingBy(
	String::length,
	Collectors.toCollection(() -> new ArrayList<String>())
	));

	Map<Integer, List<? extends String>> list5 = Stream.of("a", "b")
	.collect(Collectors.groupingBy(
	String::length,
	Collector.of(

tag1216 / Item.java

Created March 1, 2015 22:36

GSONのJsonObjectでJsonを構築する時はビルダーを作っておくと美しいコードになる ref: http://qiita.com/tag1216/items/12d92662fd1ea25329c9

tag1216 / index.html

Last active September 2, 2017 06:00

Qiitaトレンド

	<!-- index.html -->
	<html>
	<head>
	<title>Qiitaトレンド</title>
	<meta charset="UTF-8"/>
	<link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css">
	<link href="http://nvd3.org/assets/css/nv.d3.css" rel="stylesheet" type="text/css">
	<script>
	(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]\|\|function(){
	(i[r].q=i[r].q\|\|[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),

tag1216 / QiitaApiExamples.java

Created May 7, 2015 03:41

Java8で独自のStreamを作成する ref: http://qiita.com/tag1216/items/3ebe6bf69903026a0520

	import static java.util.Spliterator.*;

	import java.io.IOException;
	import java.io.InputStreamReader;
	import java.nio.charset.StandardCharsets;
	import java.util.Iterator;
	import java.util.Spliterator;
	import java.util.Spliterators;
	import java.util.function.Consumer;
	import java.util.stream.Stream;

tag1216 / file0.java

Last active August 29, 2015 14:21

Java8の日時APIはとりあえずこれだけ覚えとけ ref: http://qiita.com/tag1216/items/91a471b33f383981bfaa

LocalDateTime d = LocalDateTime.now();

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