gokepler’s gists

gokepler / CustomizedArgumentParser

Created December 1, 2024 10:04 — forked from cherniag/CustomizedArgumentParser

CustomizedPredicateBuilderStrategy for RSQL JPA, processes defined custom RSQL operator (=containsPair= in this case) and transforms to JPQL predicate to query by map's key and value

	import com.github.tennaito.rsql.misc.ArgumentFormatException;
	import com.github.tennaito.rsql.misc.DefaultArgumentParser;

	import java.sql.Timestamp;
	import java.time.ZonedDateTime;
	import java.time.format.DateTimeFormatter;

	// default DefaultArgumentParser can't parse Timestamps :(
	public class CustomizedArgumentParser extends DefaultArgumentParser {

gokepler / jpaToHql.java

Created December 1, 2024 07:20 — forked from Crydust/jpaToHql.java

convert jpa TypedQuery to hibernate hql (=jpql)

	// @see http://antoniogoncalves.org/2012/05/24/how-to-get-the-jpqlsql-string-from-a-criteriaquery-in-jpa/
	TypedQuery<X> q = entityManager.createQuery(cq);
	try {
	Class<?> hibernateQueryClass = Class.forName("org.hibernate.Query");
	Object hibernateQuery = q.unwrap(hibernateQueryClass);
	java.lang.reflect.Method getQueryStringMethod = hibernateQueryClass.getMethod("getQueryString");
	Object hql = getQueryStringMethod.invoke(hibernateQuery);
	LOGGER.warn("hql = {}", hql);
	} catch (ClassNotFoundException \| NoSuchMethodException \| SecurityException \| IllegalAccessException \| IllegalArgumentException \| java.lang.reflect.InvocationTargetException ex) {
	ex.printStackTrace();

gokepler / RepositoryImpl.java

Created December 1, 2024 04:48 — forked from koraktor/RepositoryImpl.java

Combining specifications and projections in Spring Data JPA

	public class RepositoryImpl<T, ID extends Serializable>
	extends SimpleJpaRepository<T, ID extends Serializable> {

	ProjectionFactory projectionFactory;

	public <P> List<P> findProjected(Specification<?> spec, Sort sort, Class<P> projectionClass) {
	CriteriaBuilder criteriaBuilder = entityManager.getCriteriaBuilder();
	CriteriaQuery<Tuple> tupleQuery = criteriaBuilder.createTupleQuery();
	Root<?> root = tupleQuery.from(getDomainClass());

gokepler / DeviceDataRepository.java

Created November 30, 2024 12:57 — forked from brunnels/DeviceDataRepository.java

Generic REST Query Language with RSQL for Spring Data JPA

	package org.kraven.repository;

	import org.kraven.domain.DeviceData;
	import org.springframework.data.jpa.repository.JpaSpecificationExecutor;

	/**
	* Spring Data JPA repository for the DeviceData entity.
	*/
	@SuppressWarnings("unused")
	public interface DeviceDataRepository extends JpaRepository<DeviceData,Long>, JpaSpecificationExecutor<DeviceData> {

gokepler / ProxyTest.java

Created November 26, 2024 13:24 — forked from nathansgreen/ProxyTest.java

java.lang.reflect.Proxy over Annotation

	import java.lang.annotation.Retention;
	import java.lang.annotation.RetentionPolicy;
	import java.lang.reflect.InvocationHandler;
	import java.lang.reflect.Method;
	import java.lang.reflect.Proxy;
	import java.util.HashMap;
	import java.util.Map;

	import org.junit.Assert;
	import org.junit.Test;

gokepler / JpaEntityQueryBuilder.java

Created November 25, 2024 12:27 — forked from ufuk/JpaEntityQueryBuilder.java

Easy to use query builder for JPA Criteria API

	import org.apache.commons.collections4.CollectionUtils;
	import org.apache.commons.collections4.IteratorUtils;
	import org.apache.commons.lang3.StringUtils;
	import org.hibernate.query.criteria.internal.path.PluralAttributePath;
	import org.springframework.data.domain.Page;
	import org.springframework.data.domain.PageRequest;
	import org.springframework.data.repository.support.PageableExecutionUtils;

	import javax.persistence.EntityManager;
	import javax.persistence.TypedQuery;

gokepler / HOWTO.md

Created November 17, 2024 05:56 — forked from Toparvion/HOWTO.md

JUnit test for conditional Spring Boot bean registration (@ConditionalOnProperty)

Problem

Suppose you have two classes that should be registered with Spring context exclusively, e.g. only one of the beans must exist in the context at any time based on some boolean property value. Of course you can do it by adding explicit if condition into your @Configuration class. But if the classes have no common interface it may be quite cumbersome. As an alternative you can use @ConditionalOnProperty annotation on your classes, e.g.:

@Service
@ConditionalOnProperty(name = "use-left-service", havingValue = "true", matchIfMissing = false)
public class LeftService

gokepler / DefaultQueryDslDeserializer.java

Created October 2, 2024 09:16 — forked from ascott42/DefaultQueryDslDeserializer.java

Querydsl Predicate/OrderSpecifier into JSON

	package com.asis.kis.persistence.core.querydsl;

	import com.asis.kis.base.commons.stream.SimpleStreams;
	import com.asis.kis.commons.util.JsonTypeConverter;
	import com.asis.kis.commons.util.Jsons;
	import com.fasterxml.jackson.databind.JsonNode;
	import com.fasterxml.jackson.databind.ObjectMapper;
	import com.google.common.base.CaseFormat;
	import com.google.common.collect.Lists;
	import com.querydsl.core.types.EntityPath;

gokepler / Chainer.kt

Created August 24, 2024 03:12 — forked from PatilSiddhesh/Chainer.kt

Kotlin-Function-Chaining-with-Composition

	package com.siddroid.folding


	fun main() {

	// Composing our car
	val car = Car.compose(Chain.carEngineType(EngineType.ELECTRIC)
	.carOwnerDetails(name = "Android Dev Community",
	licenceNo = "API31",
	address = "California"

gokepler / 20131212-DSLs-in-action.txt

Created August 24, 2024 02:47 — forked from chenzx/20131212-DSLs-in-action.txt

领域专用语言实战

	领域专用语言实战
	跳转至：导航、搜索
	目录

	1 初识DSL
	2 现实中的DSL
	3 DSL驱动的应用程序开发
	4 内部DSL实现模式
	5 Ruby、Groovy、Clojure语言中的内部DSL设计
	6 Scala语言中的内部DSL设计

kepler gokepler

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