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Merge pull request #3 from avegera/1-implement-initial-version-of-obj…
…ect-predicates #1 - Added initial version of object predicates
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# Set the default behavior, in case people don't have core.autocrlf set. | ||
* text=auto | ||
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# Shell script files must always be normalized | ||
*.sh text eol=lf |
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#Maven | ||
target/ | ||
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#IntelliJ | ||
/.idea | ||
*.iml | ||
*.ipr | ||
*.iws | ||
gradle-wrapper.jar | ||
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#Eclipse | ||
/.classpath | ||
/.settings/ | ||
/.project | ||
/bin/ | ||
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#Misc | ||
*.log | ||
.gradle |
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<?xml version="1.0" encoding="UTF-8"?> | ||
<project xmlns="http://maven.apache.org/POM/4.0.0" | ||
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" | ||
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> | ||
<modelVersion>4.0.0</modelVersion> | ||
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<groupId>io.github.avegera</groupId> | ||
<artifactId>predicate4j</artifactId> | ||
<version>0.1.0</version> | ||
<packaging>jar</packaging> | ||
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<name>${project.groupId}:${project.artifactId}</name> | ||
<description>Human readable fluent API for predicates in Java</description> | ||
<url>https://github.com/avegera/predicate4j</url> | ||
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<properties> | ||
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> | ||
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<!-- Test Dependencies --> | ||
<junit-jupiter.version>5.10.2</junit-jupiter.version> | ||
<asserj.version>3.26.0</asserj.version> | ||
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<!-- Plugins --> | ||
<maven-compiler-plugin.version>3.13.0</maven-compiler-plugin.version> | ||
<maven-surefire-plugin.version>3.2.5</maven-surefire-plugin.version> | ||
<maven-source-plugin.version>3.3.1</maven-source-plugin.version> | ||
<maven-javadoc-plugin.version>3.7.0</maven-javadoc-plugin.version> | ||
<maven-gpg-plugin.version>3.2.4</maven-gpg-plugin.version> | ||
<nexus-staging-maven-plugin.version>1.7.0</nexus-staging-maven-plugin.version> | ||
<jacoco-maven-plugin.version>0.8.12</jacoco-maven-plugin.version> | ||
</properties> | ||
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<licenses> | ||
<license> | ||
<name>The Apache License, Version 2.0</name> | ||
<url>http://www.apache.org/licenses/LICENSE-2.0.txt</url> | ||
</license> | ||
</licenses> | ||
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<developers> | ||
<developer> | ||
<id>avegera</id> | ||
<name>Artem Vegera</name> | ||
<organizationUrl>https://github.com/avegera</organizationUrl> | ||
</developer> | ||
</developers> | ||
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<scm> | ||
<connection>scm:git:git://github.com/avegera/predicate4j.git</connection> | ||
<developerConnection>scm:git:ssh://github.com:avegera/predicate4j.git</developerConnection> | ||
<url>https://github.com/avegera/predicate4j/tree/main</url> | ||
</scm> | ||
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<distributionManagement> | ||
<snapshotRepository> | ||
<id>ossrh</id> | ||
<url>https://s01.oss.sonatype.org/content/repositories/snapshots</url> | ||
</snapshotRepository> | ||
</distributionManagement> | ||
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<dependencies> | ||
<dependency> | ||
<groupId>org.junit.jupiter</groupId> | ||
<artifactId>junit-jupiter-engine</artifactId> | ||
<version>${junit-jupiter.version}</version> | ||
<scope>test</scope> | ||
</dependency> | ||
<dependency> | ||
<groupId>org.junit.jupiter</groupId> | ||
<artifactId>junit-jupiter-params</artifactId> | ||
<version>${junit-jupiter.version}</version> | ||
<scope>test</scope> | ||
</dependency> | ||
<dependency> | ||
<groupId>org.assertj</groupId> | ||
<artifactId>assertj-core</artifactId> | ||
<version>${asserj.version}</version> | ||
<scope>test</scope> | ||
</dependency> | ||
</dependencies> | ||
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<build> | ||
<pluginManagement> | ||
<plugins> | ||
<plugin> | ||
<groupId>org.apache.maven.plugins</groupId> | ||
<artifactId>maven-compiler-plugin</artifactId> | ||
<version>${maven-compiler-plugin.version}</version> | ||
<configuration> | ||
<source>1.8</source> | ||
<target>1.8</target> | ||
</configuration> | ||
</plugin> | ||
<plugin> | ||
<groupId>org.apache.maven.plugins</groupId> | ||
<artifactId>maven-surefire-plugin</artifactId> | ||
<version>${maven-surefire-plugin.version}</version> | ||
</plugin> | ||
<plugin> | ||
<groupId>org.apache.maven.plugins</groupId> | ||
<artifactId>maven-source-plugin</artifactId> | ||
<version>${maven-source-plugin.version}</version> | ||
<executions> | ||
<execution> | ||
<id>attach-sources</id> | ||
<goals> | ||
<goal>jar-no-fork</goal> | ||
</goals> | ||
</execution> | ||
</executions> | ||
</plugin> | ||
<plugin> | ||
<groupId>org.apache.maven.plugins</groupId> | ||
<artifactId>maven-javadoc-plugin</artifactId> | ||
<version>${maven-javadoc-plugin.version}</version> | ||
<configuration> | ||
<source>8</source> | ||
</configuration> | ||
<executions> | ||
<execution> | ||
<id>attach-javadocs</id> | ||
<goals> | ||
<goal>jar</goal> | ||
</goals> | ||
</execution> | ||
</executions> | ||
</plugin> | ||
<plugin> | ||
<groupId>org.jacoco</groupId> | ||
<artifactId>jacoco-maven-plugin</artifactId> | ||
<version>${jacoco-maven-plugin.version}</version> | ||
<executions> | ||
<execution> | ||
<goals> | ||
<goal>prepare-agent</goal> | ||
</goals> | ||
</execution> | ||
<execution> | ||
<id>jacoco-check</id> | ||
<goals> | ||
<goal>check</goal> | ||
</goals> | ||
<configuration> | ||
<rules> | ||
<rule> | ||
<element>CLASS</element> | ||
<limits> | ||
<limit> | ||
<counter>LINE</counter> | ||
<value>COVEREDRATIO</value> | ||
<minimum>0.9</minimum> | ||
</limit> | ||
<limit> | ||
<counter>METHOD</counter> | ||
<value>COVEREDRATIO</value> | ||
<minimum>0.9</minimum> | ||
</limit> | ||
<limit> | ||
<counter>INSTRUCTION</counter> | ||
<value>COVEREDRATIO</value> | ||
<minimum>0.9</minimum> | ||
</limit> | ||
<limit> | ||
<counter>BRANCH</counter> | ||
<value>COVEREDRATIO</value> | ||
<minimum>0.9</minimum> | ||
</limit> | ||
<limit> | ||
<counter>COMPLEXITY</counter> | ||
<value>COVEREDRATIO</value> | ||
<minimum>0.9</minimum> | ||
</limit> | ||
</limits> | ||
</rule> | ||
</rules> | ||
</configuration> | ||
</execution> | ||
<execution> | ||
<id>report</id> | ||
<phase>prepare-package</phase> | ||
<goals> | ||
<goal>report</goal> | ||
</goals> | ||
</execution> | ||
</executions> | ||
</plugin> | ||
<plugin> | ||
<groupId>org.apache.maven.plugins</groupId> | ||
<artifactId>maven-gpg-plugin</artifactId> | ||
<version>${maven-gpg-plugin.version}</version> | ||
<executions> | ||
<execution> | ||
<id>sign-artifacts</id> | ||
<phase>verify</phase> | ||
<goals> | ||
<goal>sign</goal> | ||
</goals> | ||
</execution> | ||
</executions> | ||
</plugin> | ||
<plugin> | ||
<groupId>org.sonatype.plugins</groupId> | ||
<artifactId>nexus-staging-maven-plugin</artifactId> | ||
<version>${nexus-staging-maven-plugin.version}</version> | ||
<extensions>true</extensions> | ||
<configuration> | ||
<serverId>ossrh</serverId> | ||
<nexusUrl>https://s01.oss.sonatype.org/</nexusUrl> | ||
<autoReleaseAfterClose>true</autoReleaseAfterClose> | ||
</configuration> | ||
</plugin> | ||
</plugins> | ||
</pluginManagement> | ||
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<plugins> | ||
<plugin> | ||
<groupId>org.apache.maven.plugins</groupId> | ||
<artifactId>maven-compiler-plugin</artifactId> | ||
</plugin> | ||
<plugin> | ||
<groupId>org.apache.maven.plugins</groupId> | ||
<artifactId>maven-surefire-plugin</artifactId> | ||
</plugin> | ||
<plugin> | ||
<groupId>org.apache.maven.plugins</groupId> | ||
<artifactId>maven-source-plugin</artifactId> | ||
</plugin> | ||
<plugin> | ||
<groupId>org.apache.maven.plugins</groupId> | ||
<artifactId>maven-javadoc-plugin</artifactId> | ||
</plugin> | ||
</plugins> | ||
</build> | ||
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<profiles> | ||
<profile> | ||
<id>java-code-coverage</id> | ||
<activation> | ||
<activeByDefault>true</activeByDefault> | ||
</activation> | ||
<build> | ||
<plugins> | ||
<plugin> | ||
<groupId>org.jacoco</groupId> | ||
<artifactId>jacoco-maven-plugin</artifactId> | ||
</plugin> | ||
</plugins> | ||
</build> | ||
</profile> | ||
<profile> | ||
<id>sign</id> | ||
<activation> | ||
<activeByDefault>false</activeByDefault> | ||
</activation> | ||
<build> | ||
<plugins> | ||
<plugin> | ||
<groupId>org.apache.maven.plugins</groupId> | ||
<artifactId>maven-gpg-plugin</artifactId> | ||
</plugin> | ||
</plugins> | ||
</build> | ||
</profile> | ||
<profile> | ||
<id>release</id> | ||
<build> | ||
<plugins> | ||
<plugin> | ||
<groupId>org.sonatype.plugins</groupId> | ||
<artifactId>nexus-staging-maven-plugin</artifactId> | ||
</plugin> | ||
</plugins> | ||
</build> | ||
</profile> | ||
</profiles> | ||
</project> |
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src/main/java/io/github/avegera/predicate4j/Predicates.java
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package io.github.avegera.predicate4j; | ||
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import java.util.Objects; | ||
import java.util.function.Predicate; | ||
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/** | ||
* This class contains library of common java predicates. | ||
*/ | ||
public class Predicates { | ||
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private Predicates() { | ||
//private constructor | ||
} | ||
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public static <T> Predicate<T> isEqualTo(T object) { | ||
return it -> Objects.equals(it, object); | ||
} | ||
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public static <T> Predicate<T> notEqualTo(T object) { | ||
return it -> !Objects.equals(it, object); | ||
} | ||
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public static <T> Predicate<T> isNull() { | ||
return Objects::isNull; | ||
} | ||
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public static <T> Predicate<T> notNull() { | ||
return Objects::nonNull; | ||
} | ||
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public static <T> Predicate<T> isInstanceOf(Class<?> clazz) { | ||
return obj -> clazz != null && clazz.isInstance(obj); | ||
} | ||
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public static <T> Predicate<T> notInstanceOf(Class<?> clazz) { | ||
return obj -> clazz == null || !clazz.isInstance(obj); | ||
} | ||
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public static <T> Predicate<T> alwaysTrue() { | ||
return it -> true; | ||
} | ||
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public static <T> Predicate<T> alwaysFalse() { | ||
return it -> false; | ||
} | ||
} |
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package io.github.avegera.predicate4j; | ||
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import io.github.avegera.predicate4j.api.WhereObject; | ||
import io.github.avegera.predicate4j.impl.WhereObjectImpl; | ||
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import java.util.function.Function; | ||
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public class Where { | ||
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private Where() { | ||
//private constructor | ||
} | ||
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public static <T, R> WhereObject<T, R> where(Function<T, R> mapper) { | ||
return new WhereObjectImpl<>(mapper); | ||
} | ||
} |
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src/main/java/io/github/avegera/predicate4j/api/RichPredicate.java
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package io.github.avegera.predicate4j.api; | ||
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import java.util.function.Predicate; | ||
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public interface RichPredicate<T> extends Predicate<T> { | ||
} |
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src/main/java/io/github/avegera/predicate4j/api/WhereObject.java
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package io.github.avegera.predicate4j.api; | ||
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public interface WhereObject<T, R> { | ||
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RichPredicate<T> isEqualTo(R value); | ||
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RichPredicate<T> isInstanceOf(Class<?> clazz); | ||
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RichPredicate<T> isNull(); | ||
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RichPredicate<T> notEqualTo(R value); | ||
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RichPredicate<T> notInstanceOf(Class<?> clazz); | ||
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RichPredicate<T> notNull(); | ||
} |
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