guava jar

Common Guava MethodIntroduction 　　Guava is a java-based Open-Source Tool library of Google. It contains many core libraries widely relied on by Google's java projects, For example: Set, cache, native type support, concurrent library, General annotation, string processing, I/O, and so on. All these tools are applied to product services by Google engineers every day. Why do we need to choose

ObjectiveGoogle's guava is a Java core-enhanced library that is widely used.I usually use very often, this time with the use of the Cache component of the day to see how Google Daniel Design.Cache This main discussion caches. Caching is important in everyday development, and if your app has a high frequency of reading for a certain type of data, and it's a small change, it's a great fit to use caching to improve performance.Caching can i

Guava Study notes: EventbusReprint: http://blog.csdn.net/kiwi_coder/article/details/9338721Now, under the eyes, there are more and more open source libraries, programmers often do not need to build their own wheels, you can find a desirable open source library for use. While we are using a wide variety of open source code, we do not need to know how the code is implemented. But understanding how they are implemented can not only improve our own progra

Recently in the preparation of a guava for customers to share, so will continue to update about guava more details to share. This document will record guava string processing joiner (connection) and splitter (split) processing.JoinerFirst, let's take a look at one of the cases we often meet:题目：对于一个如下定义List ListHow do we continue without a third-party library, s

Now the eyes, open Source Library more and more, programmers often do not need to build their own wheels, you can find a desirable open source library for use. While we're working with all kinds of open source code, we don't need to know how that code is implemented. But understanding how they are implemented will not only enhance our own programming skills and programming skills, but also provide examples that we can emulate to learn a particular technical point.

The guava package is recommended by my colleagues in my recent project and is a library that Google has launched. There are a lot of features, including collections, caches, native type support, concurrency libraries, general annotations, string processing, Io, and more. We use guava dependencies in our projects, but in fact we use only a small subset of them, such as the Declaration and processing of colle

First, what is guava1) Guava Library is a common tool library for many Java projects2) The Guava Tool Library contains: set collection, concurrency concurrency, primitive Primitive, reflection reflection, comparison comparison, I/O operations, hash hashes, network networking, strings string, math functions math, cache caching, in-memory publish/subscribe ... and various levels of data types3) requires JDK v

Next to the guava joiner and splitter, this article will introduce another useful guava object optional, which in Java Google Guava first presented us with a nullable object model. In other languages such as C # This is a pattern that has existed for a long time and is included in the. NET class Library Nullable (Int? is also a nullable type).Null sucksReturn to

Common methods of Guava Replication objectGuava is an extension project for Google's java1.6-based class library collection, which provides practical methods for collections, caches, support primitives, concurrency, common annotations, string handling, I/O, and validation.These high-quality APIs can make your Java code more elegant and concise, making your work easier and more enjoyable.I. OverviewIn Java, the object class is the parent class for all

Guava However, you can search for javadoc over the Internet. This Basic utilities (Basic tool set): Used Using and avoiding null (avoid null): null Preconditions (: Common object methods (Common object method): simplifies the implementation of object methods, such as hashCode () and toString. (Note: In Native java, an object acts as a Map) Ordering: (SORT): Guava Throwables: (throws an exception): simpli

Eventbus literal translation is the event bus, which uses the publish-subscribe mode to support communication between components, do not need to explicitly register callbacks, more flexible than the observer mode, can be used to replace the traditional Java event listening mode, Eventbus is decoupled, it is not a generic publish subscription system, Nor can it be used for interprocess communication. There are several Eventbus libraries available for Android: Google's

OverviewThe guava interface represents an object that has a running state, with methods for starting and stopping. such as network servers, RPC servers, and timers, etc., can implement the service interface. The state of being in charge of services like this requires proper management of startup and shutdown, so it can be cumbersome, especially when it comes to multithreading and scheduling. Guava provides

Google-Guava-EventBus source code explanation, guavaeventbus Guava is a Java basic class library open-source by Google. It is widely used within Google. Guava provides many functional modules, such as collections, concurrent libraries, and caches. EventBus is one of the modules. This article uses the EventBus source code to discuss its design and implementation.S

Guava-Optional, guavaoptional Excessive use of null may lead to a large number of buckets. In the underlying code of Google code, 95% of collection classes do not accept null values by default. For a null value, it is better to reject null with a quick failure than to accept it by default. In addition, the meaning of null itself is vague. For example, if the return value of null is returned, for example, Map. get (key) returns null, either because th

Guava Chinese is the meaning of pomegranate, this project is an open source project of Google, including many Google core Java often use libraries.1. Basic tools [Basic utilities]Make it more comfortable to use the Java language1.1 The use and avoidance of null:null is ambiguous and can cause confusing mistakes, and sometimes it makes people very uncomfortable. Very many guava tool classes reject null value

When an ordinary project is not applicable to the jar package management tools such as MAVEN, usually I copy the jar package directly under the LIB, and add the additional jar package directly in the build path, or use the jar package of the User_libraries packageIn a folder, and then make the project dependent on the

What is guava-libraries? Guava-libraries is an extension of Google's Java, mainly covering collection, cache, concurrency, I/O, reflection, and so on. It was originally a class library used inside Google, and later it was made open-source. The design of this library introduces a lot of new ideas. Studying it may give you a new understanding and opinions on the Java language. Address: http://code.google

preconditions. Another function: early detection of errors, precise control of the location of the error extraction preconditions Preconditions is a function of guava, project address: Https://github.com/google/guavaDirect reference using the method dependencies { compile ' com.google.guava:guava:19.0 ' } The birth of guava is designed to expand the Java collection to improve development efficiency, but

Guava is Google's Open source Java Common Toolset Library, including collections, caches, concurrency, strings, I/O operations and so on in the Java development process often need to implement the tool class. In the normal development process, many situations need to use caching to avoid frequent SQL queries or other time-consuming operations, which will take the results of caching these operations to the next request. If the result of our operation i

A new Range type is added to Guava, and the data structure related to the Range is known from the name. According to the official Google Documents, Range defines the Range boundary of the continuous span, which is a Comparable type ). For example, integer data between 1 and 100. In mathematics, the range is bounded and borderless. Similarly, Guava also has this argument. If the range is bounded, it can be d