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GenericBuilder新增2个参数的with方法,以支持Map构建
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@ -1,10 +1,6 @@
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package cn.hutool.core.builder;
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import cn.hutool.core.lang.func.Supplier1;
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import cn.hutool.core.lang.func.Supplier2;
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import cn.hutool.core.lang.func.Supplier3;
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import cn.hutool.core.lang.func.Supplier4;
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import cn.hutool.core.lang.func.Supplier5;
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import cn.hutool.core.lang.func.*;
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import java.util.ArrayList;
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import java.util.List;
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@ -45,7 +41,16 @@ import java.util.function.Supplier;
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* .with(Box::alis)
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* .build();
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* </pre>
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* <p>注意:本工具类支持调用的方法的参数数量不超过1个,更多的参数不利于阅读和维护。</p>
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* <p> 还可能这样构建Map对象:</p>
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* <pre>
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* HashMap<String, String> colorMap = GenericBuilder
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* .of(HashMap<String,String>::new)
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* .with(Map::put, "red", "#FF0000")
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* .with(Map::put, "yellow", "#FFFF00")
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* .with(Map::put, "blue", "#0000FF")
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* .build();
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* </pre>
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* <p>注意:本工具类支持调用的构造方法的参数数量不超过5个,一般方法的参数数量不超过2个,更多的参数不利于阅读和维护。</p>
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*
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* @author TomXin
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* @since 5.7.21
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@ -183,9 +188,9 @@ public class GenericBuilder<T> implements Builder<T> {
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/**
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* 调用1参数方法
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*
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* @param <P1> 参数一类型
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* @param consumer 1参数Consumer,一般为Setter方法引用
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* @param consumer 1参数Consumer
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* @param p1 参数一
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* @param <P1> 参数一类型
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* @return GenericBuilder对象
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*/
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public <P1> GenericBuilder<T> with(BiConsumer<T, P1> consumer, P1 p1) {
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@ -193,6 +198,21 @@ public class GenericBuilder<T> implements Builder<T> {
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return this;
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}
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/**
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* 调用2参数方法
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*
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* @param consumer 2参数Consumer
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* @param p1 参数一
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* @param p2 参数二
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* @param <P1> 参数一类型
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* @param <P2> 参数二类型
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* @return GenericBuilder对象
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*/
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public <P1, P2> GenericBuilder<T> with(Consumer2<T, P1, P2> consumer, P1 p1, P2 p2) {
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modifiers.add(consumer.toConsumer(p1, p2));
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return this;
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}
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/**
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* 构建
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*
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@ -0,0 +1,37 @@
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package cn.hutool.core.lang.func;
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import java.util.function.Consumer;
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/**
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* 2参数Consumer
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*
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* @param <T> 目标类型
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* @param <P1> 参数一类型
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* @param <P2> 参数二类型
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* @author TomXin
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* @since 5.7.22
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*/
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@FunctionalInterface
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public interface Consumer2<T, P1, P2> {
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/**
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* 接收参数方法
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*
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* @param t 对象
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* @param p1 参数一
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* @param p2 参数二
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*/
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void accept(T t, P1 p1, P2 p2);
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/**
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* 将带有参数的Consumer转换为无参{@link Consumer}
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*
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* @param p1 参数1
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* @param p2 参数2
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* @return {@link Consumer}
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*/
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default Consumer<T> toConsumer(P1 p1, P2 p2) {
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return instant -> accept(instant, p1, p2);
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}
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}
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@ -8,6 +8,9 @@ import lombok.experimental.Accessors;
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import org.junit.Assert;
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import org.junit.Test;
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import java.util.HashMap;
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import java.util.Map;
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/**
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* {@link GenericBuilder} 单元测试类
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*
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@ -58,6 +61,18 @@ public class GenericBuilderTest {
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Assert.assertEquals(222, box1.getLength().intValue());
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Assert.assertEquals(333, box1.getWidth().intValue());
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Assert.assertEquals(444, box1.getHeight().intValue());
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Assert.assertEquals("TomXin:\"Hello Partner!\"", box1.getTitleAlias());
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//Map创建
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HashMap<String, String> colorMap = GenericBuilder
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.of(HashMap<String,String>::new)
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.with(Map::put, "red", "#FF0000")
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.with(Map::put, "yellow", "#FFFF00")
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.with(Map::put, "blue", "#0000FF")
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.build();
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Assert.assertEquals("#FF0000", colorMap.get("red"));
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Assert.assertEquals("#FFFF00", colorMap.get("yellow"));
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Assert.assertEquals("#0000FF", colorMap.get("blue"));
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}
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@Getter
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