全路径名： com.google.common.base ** Preconditions** 简介 简单的静态类，在自己的方法调用之前验证参数和状态。
问题描述： 初始化Hive仓库报错Exception in thread “main” java.lang.NoSuchMethodError: com.google.common.base.Preconditions.checkArgument...(ZLjava/lang/String;Ljava/lang/Object;)V 解决方案（过程）： com.google.common.base.Preconditions.checkArgument
一般项目都会有自己的一套异常处理方式，sharding-jdbc也不以外，sharding-jdbc源码处理异常的方式主要有下面2种方式： Preconditions 自定义异常 1....Preconditions google-guava的Preconditions用于条件检查，不符合预期的话则抛出异常，并可以重写异常信息。...google-guava源码中Preconditions的注释如下： Static convenience methods that help a method or constructor check...whether it was invoked correctly (whether its preconditions have been met)....When false (or null) is passed instead, the Preconditions method throws an unchecked exception, which
} /** * 获取索引对应的别名 */ public static Set getAlias(String index) { Preconditions.checkNotNull...@param alias 别名 */ public static boolean addAlias(String index, String... alias) { Preconditions.checkNotNull...(index); Preconditions.checkNotNull(alias); final IndexOperations indexOps = elasticsearchRestTemplate.indexOps...@param alias 别名 */ public static boolean delAlias(String index, String... alias) { Preconditions.checkNotNull...(index); Preconditions.checkNotNull(oldAlias); Preconditions.checkNotNull(newAlias);
251 1.1.3 实现 Int.java: package io.timberwolf.net.protocols.mysql.data; import com.google.common.base.Preconditions...class Int { //定长整型数据编码解码 public static int writeLength1(ByteBuffer buffer, int num) { Preconditions.checkArgument...byte) num); return 1; } public static int readLength1(ByteBuffer buffer) { Preconditions.checkNotNull...(int) buffer.get(); } public static int writeLength2(ByteBuffer buffer, int num) { Preconditions.checkArgument...:NulTerminatedString package io.timberwolf.net.protocols.mysql.data; import com.google.common.base.Preconditions
因此，我们来定义一下这两种结构： 可拆分的类型： import com.google.common.base.Preconditions; import com.google.common.base.Strings...(content); Preconditions.checkNotNull(beanCopier); this.content = newEmptyContentInstance();...//region get/set field @Override public synchronized Object getField(String fieldName) { Preconditions.checkArgument...dirtyFieldNames.clear(); return list; } //endregion } 不可拆分的类型： import com.google.common.base.Preconditions...(content); Preconditions.checkNotNull(beanCopier); this.content = newEmptyContentInstance();
preConditions 只有满足了preConditions中的先决条件，Liquibase才会运行相应的配置 譬如我们只想在h2中使用，可以这样配置： ... preConditions...还有其他的很多选项可以使用，如 等， 有兴趣的可以自行查看官网preconditions介绍来获取更全的内容 preConditions...决定是否执行 下面是一个官网上的例子，只有当表中数据为空时才把table drop掉 <include file="classpath:config/liquibase/changelog
(taskManagerRequestTimeout); this.slotRequestTimeout = Preconditions.checkNotNull(slotRequestTimeout...); this.taskManagerTimeout = Preconditions.checkNotNull(taskManagerTimeout); } public...= Preconditions.checkNotNull(taskManagerTimeout); slots = new HashMap(16); freeSlots...(newResourceManagerId); mainThreadExecutor = Preconditions.checkNotNull(newMainThreadExecutor...); resourceActions = Preconditions.checkNotNull(newResourceActions); started = true
public AkkaQueryServiceGateway(ActorRef queryServiceActorRef) { this.queryServiceActorRef = Preconditions.checkNotNull...(serializedCounters); Preconditions.checkNotNull(serializedGauges); Preconditions.checkNotNull...(serializedMeters); Preconditions.checkNotNull(serializedHistograms); Preconditions.checkArgument...(numCounters >= 0); Preconditions.checkArgument(numGauges >= 0); Preconditions.checkArgument...(numMeters >= 0); Preconditions.checkArgument(numHistograms >= 0); this.serializedCounters
query_result["casename"] = case.casename query_result["preconditions..."] = case.preconditions query_result_list.append(query_result)..."] = case.preconditions query_result_list.append(query_result)..."] = case.preconditions query_result_list.append(query_result) return..."] = case.preconditions query_result_list.append(query_result) return
ImmutableList immutableList = ImmutableList.copyOf(list);Iterables获得元素的API图片获得符合条件的元素图片转换集合类型图片条件检查（Preconditions...）Preconditions是Guava提供的一组前置条件检查工具，它提供了一些检查参数是否符合预期的方法。...以下是Preconditions的主要方法：checkArgument(boolean expression, String errorMessageTemplate, Object... errorMessageArgs...(2, 6, list3.size()); // 可以在错误信息中使用占位符 int value1 = 101; Preconditions.checkArgument...(value1 <= 100, "值必须小于等于 %s", 100); // 可以使用Supplier来避免计算开销 int value2 = 101; Preconditions.checkArgument
queryServiceActorRef; public AkkaQueryServiceGateway(ActorRef queryServiceActorRef) { this.queryServiceActorRef = Preconditions.checkNotNull..., byte[] serializedHistograms, int numCounters, int numGauges, int numMeters, int numHistograms) { Preconditions.checkNotNull...(serializedCounters); Preconditions.checkNotNull(serializedGauges); Preconditions.checkNotNull(serializedMeters...); Preconditions.checkNotNull(serializedHistograms); Preconditions.checkArgument(numCounters >= 0); Preconditions.checkArgument...(numGauges >= 0); Preconditions.checkArgument(numMeters >= 0); Preconditions.checkArgument(numHistograms
* * @sample samples.misc.Preconditions.failCheckWithLazyMessage */ @kotlin.internal.InlineOnly public...* * @sample samples.misc.Preconditions.failRequireWithLazyMessage */ @kotlin.internal.InlineOnly public...* * @sample samples.misc.Preconditions.failWithError */ @kotlin.internal.InlineOnly public inline fun...* * @sample samples.misc.Preconditions.failCheckWithLazyMessage */ @kotlin.internal.InlineOnly public
(httpParam)) { Map header = httpParam.getHeader(); if (Preconditions.isNotBlank...Elements media = doc.select("[src]"); List urls = new ArrayList(); if (Preconditions.isNotBlank...(Element src : media) { if (src.tagName().equals("img")) { if (Preconditions.isNotBlank...* 下载多张图片 * @param urls */ public void downloadPics(List urls) { if (Preconditions.isNotBlank...* @param urls */ public void downloadWebPageImages(List urls) { if (Preconditions.isNotBlank
(httpParam)) { Map<String,String header = httpParam.getHeader(); if (Preconditions.isNotBlank...html); Elements media = doc.select("[src]"); List<String urls = new ArrayList< (); if (Preconditions.isNotBlank...media)) { for (Element src : media) { if (src.tagName().equals("img")) { if (Preconditions.isNotBlank.../** * 下载多张图片 * @param urls */ public void downloadPics(List<String urls) { if (Preconditions.isNotBlank...下载多个网页的全部图片 * @param urls */ public void downloadWebPageImages(List<String urls) { if (Preconditions.isNotBlank
DocumentHelper.parseText(input); Element root = document.getRootElement(); Element headElement = root.element("head"); Preconditions.checkArgument...= null,"XML中无head元素"); setData(dataMap,bodyElement); Element bodyElement = root.element("body"); Preconditions.checkArgument...dataMap,Element parentElement){ List fieldElements = parentElement.elements("field"); Preconditions.checkArgument
out runtime.Object, ttl uint64) error Delete(ctx context.Context, key string, out runtime.Object, preconditions...*Preconditions,validateDeletion ValidateObjectFunc, cachedExistingObject runtime.Object) error Watch...GuaranteedUpdate(ctx context.Context, key string, ptrToType runtime.Object, ignoreNotFound bool, precondtions *Preconditions...ttl uint64) error{...} func (s *store) Delete(ctx context.Context, key string, out runtime.Object, preconditions...*Preconditions,validateDeletion ValidateObjectFunc, cachedExistingObject runtime.Object) error{...}
(person.getId()); # orgIds和hobbies都为null personInDb = personMapper.selectOneById(person.getId()); Preconditions.checkArgument...(personInDb.getHobbies().equals(person.getHobbies())); Preconditions.checkArgument(personInDb.getName...().equals(person.getName())); Preconditions.checkArgument(personInDb.getAge().equals(person.getAge())...); Preconditions.checkArgument(personInDb.getOrgIds().equals(person.getOrgIds())); 改进 设置@ResultMap("mybatis-plus_Person
编码 我们编码要多考虑一些： 为了健壮性，我们要进行参数校验； 另外如果想写一个完善的工具类，可以支持自定义省略符； 我们来编写工具类： import com.google.common.base.Preconditions...public static String abbreviate(String originStr, int maxSize, String abbrevMarker) { Preconditions.checkArgument...StringUtils.defaultIfEmpty(abbrevMarker, defaultAbbrevMarker); } } 这里借助了 commons-lang3 包里的StringUtils，和guava 包的Preconditions...public static String abbreviate(String originStr, int maxSize, String abbrevMarker) { Preconditions.checkArgument...因此我们做出下面的修改： import com.google.common.base.Preconditions; import org.apache.commons.lang3.StringUtils
= Preconditions.checkNotNull(executionAttemptID); this.timeout = Preconditions.checkNotNull(...(jobManager); this.jobID = Preconditions.checkNotNull(jobID); this.vertexID = Preconditions.checkNotNull...(vertexID); this.executionID = Preconditions.checkNotNull(executionID); this.timeout...= Preconditions.checkNotNull(timeout); } @Override public InputSplit getNextInputSplit(ClassLoader...userCodeClassLoader) throws InputSplitProviderException { Preconditions.checkNotNull(userCodeClassLoader
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