write a line into test.file

docs/spring/cs5b72623a-880e-11ee-aac4-acde48001122.java

@@ -0,0 +1,31 @@
+package com.huifer.springboot.mysql.pojo.two;
+
+import lombok.Builder;
+import lombok.Data;
+import lombok.ToString;
+
+import javax.persistence.*;
+
+/**
+ * <p>Title : StudentTwo </p>
+ * <p>Description : </p>
+ *
+ * @author huifer
+ * @date 2019-06-28
+ */
+@Entity
+@Data
+@ToString
+@Builder
+@Table(name = "student_two")
+public class StudentTwo {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+
+    private String name;
+    private Integer age;
+    private String address;
+}

docs/spring/cs5bcc7fae-880e-11ee-aac4-acde48001122.java

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+/**
+ * Copyright 2009-2016 the original author or authors.
+ * <p>
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.ibatis.submitted.lazy_properties;
+
+import org.apache.ibatis.annotations.ResultMap;
+import org.apache.ibatis.annotations.Select;
+
+import java.util.List;
+
+public interface Mapper {
+    User getUser(Integer id);
+
+    @ResultMap("user")
+    @Select("select 11 id, 'lazy1' name from (values(0))")
+    User getLazy1();
+
+    @ResultMap("user")
+    @Select("select 12 id, 'lazy2' name from (values(0))")
+    User getLazy2();
+
+    @ResultMap("user")
+    @Select("select 13 id, 'lazy3' name from (values(0))")
+    List<User> getLazy3();
+}

docs/spring/cs5c29a5f8-880e-11ee-aac4-acde48001122.java

@@ -0,0 +1,44 @@
+/**
+ * Copyright 2009-2019 the original author or authors.
+ * <p>
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.ibatis.submitted.nested;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class Name {
+    private String lastName;
+    private List<String> firstNames;
+
+    public Name() {
+        firstNames = new ArrayList<>();
+    }
+
+    public String getLastName() {
+        return lastName;
+    }
+
+    public void setLastName(String lastName) {
+        this.lastName = lastName;
+    }
+
+    public List<String> getFirstNames() {
+        return firstNames;
+    }
+
+    public void addFirstName(String firstName) {
+        firstNames.add(firstName);
+    }
+}

docs/spring/cs5c830288-880e-11ee-aac4-acde48001122.java

@@ -0,0 +1,22 @@
+package com.huifer.rmi.jdk;
+
+import java.rmi.RemoteException;
+import java.rmi.server.UnicastRemoteObject;
+
+/**
+ * <p>Title : HelloServiceImpl </p>
+ * <p>Description : </p>
+ *
+ * @author huifer
+ * @date 2019-06-11
+ */
+public class HelloServiceImpl extends UnicastRemoteObject implements HelloService {
+
+    public HelloServiceImpl() throws RemoteException {
+        super();
+    }
+
+    public String hello(String msg) throws RemoteException {
+        return "msg:" + msg;
+    }
+}

docs/spring/cs5cd7603a-880e-11ee-aac4-acde48001122.java

@@ -0,0 +1,184 @@
+/**
+ * Copyright 2009-2019 the original author or authors.
+ * <p>
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.ibatis.binding;
+
+import org.apache.ibatis.annotations.*;
+import org.apache.ibatis.domain.blog.Author;
+import org.apache.ibatis.domain.blog.Post;
+import org.apache.ibatis.domain.blog.Section;
+import org.apache.ibatis.executor.BatchResult;
+import org.apache.ibatis.session.RowBounds;
+
+import java.util.List;
+
+@CacheNamespace(readWrite = false)
+public interface BoundAuthorMapper {
+
+    //======================================================
+
+    List<Post> findPostsInArray(Integer[] ids);
+
+    //======================================================
+
+    List<Post> findPostsInList(List<Integer> ids);
+
+    //======================================================
+
+    int insertAuthor(Author author);
+
+    int insertAuthorInvalidSelectKey(Author author);
+
+    int insertAuthorInvalidInsert(Author author);
+
+    int insertAuthorDynamic(Author author);
+
+    //======================================================
+
+    @ConstructorArgs({
+            @Arg(column = "AUTHOR_ID", javaType = int.class)
+    })
+    @Results({
+            @Result(property = "username", column = "AUTHOR_USERNAME"),
+            @Result(property = "password", column = "AUTHOR_PASSWORD"),
+            @Result(property = "email", column = "AUTHOR_EMAIL"),
+            @Result(property = "bio", column = "AUTHOR_BIO")
+    })
+    @Select({
+            "SELECT ",
+            "  ID as AUTHOR_ID,",
+            "  USERNAME as AUTHOR_USERNAME,",
+            "  PASSWORD as AUTHOR_PASSWORD,",
+            "  EMAIL as AUTHOR_EMAIL,",
+            "  BIO as AUTHOR_BIO",
+            "FROM AUTHOR WHERE ID = #{id}"})
+    Author selectAuthor(int id);
+
+    //======================================================
+
+    @Result(property = "id", column = "AUTHOR_ID", id = true)
+    @Result(property = "username", column = "AUTHOR_USERNAME")
+    @Result(property = "password", column = "AUTHOR_PASSWORD")
+    @Result(property = "email", column = "AUTHOR_EMAIL")
+    @Result(property = "bio", column = "AUTHOR_BIO")
+    @Select({
+            "SELECT ",
+            "  ID as AUTHOR_ID,",
+            "  USERNAME as AUTHOR_USERNAME,",
+            "  PASSWORD as AUTHOR_PASSWORD,",
+            "  EMAIL as AUTHOR_EMAIL,",
+            "  BIO as AUTHOR_BIO",
+            "FROM AUTHOR WHERE ID = #{id}"})
+    Author selectAuthorMapToPropertiesUsingRepeatable(int id);
+
+    //======================================================
+
+    @ConstructorArgs({
+            @Arg(column = "AUTHOR_ID", javaType = Integer.class),
+            @Arg(column = "AUTHOR_USERNAME", javaType = String.class),
+            @Arg(column = "AUTHOR_PASSWORD", javaType = String.class),
+            @Arg(column = "AUTHOR_EMAIL", javaType = String.class),
+            @Arg(column = "AUTHOR_BIO", javaType = String.class),
+            @Arg(column = "AUTHOR_SECTION", javaType = Section.class)
+    })
+    @Select({
+            "SELECT ",
+            "  ID as AUTHOR_ID,",
+            "  USERNAME as AUTHOR_USERNAME,",
+            "  PASSWORD as AUTHOR_PASSWORD,",
+            "  EMAIL as AUTHOR_EMAIL,",
+            "  BIO as AUTHOR_BIO," +
+                    "  FAVOURITE_SECTION as AUTHOR_SECTION",
+            "FROM AUTHOR WHERE ID = #{id}"})
+    Author selectAuthorConstructor(int id);
+
+    //======================================================
+
+    @Arg(column = "AUTHOR_ID", javaType = Integer.class, id = true)
+    @Arg(column = "AUTHOR_USERNAME", javaType = String.class)
+    @Arg(column = "AUTHOR_PASSWORD", javaType = String.class)
+    @Arg(column = "AUTHOR_EMAIL", javaType = String.class)
+    @Arg(column = "AUTHOR_BIO", javaType = String.class)
+    @Arg(column = "AUTHOR_SECTION", javaType = Section.class)
+    @Select({
+            "SELECT ",
+            "  ID as AUTHOR_ID,",
+            "  USERNAME as AUTHOR_USERNAME,",
+            "  PASSWORD as AUTHOR_PASSWORD,",
+            "  EMAIL as AUTHOR_EMAIL,",
+            "  BIO as AUTHOR_BIO," +
+                    "  FAVOURITE_SECTION as AUTHOR_SECTION",
+            "FROM AUTHOR WHERE ID = #{id}"})
+    Author selectAuthorMapToConstructorUsingRepeatable(int id);
+
+    //======================================================
+
+    @Arg(column = "AUTHOR_ID", javaType = int.class)
+    @Result(property = "username", column = "AUTHOR_USERNAME")
+    @Select({
+            "SELECT ",
+            "  ID as AUTHOR_ID,",
+            "  USERNAME as AUTHOR_USERNAME,",
+            "  PASSWORD as AUTHOR_PASSWORD,",
+            "  EMAIL as AUTHOR_EMAIL,",
+            "  BIO as AUTHOR_BIO",
+            "FROM AUTHOR WHERE ID = #{id}"})
+    Author selectAuthorUsingSingleRepeatable(int id);
+
+    //======================================================
+
+    @ConstructorArgs({
+            @Arg(column = "AUTHOR_ID", javaType = Integer.class),
+            @Arg(column = "AUTHOR_USERNAME", javaType = String.class),
+            @Arg(column = "AUTHOR_PASSWORD", javaType = String.class),
+            @Arg(column = "AUTHOR_EMAIL", javaType = String.class),
+            @Arg(column = "AUTHOR_BIO", javaType = String.class)
+    })
+    @Arg(column = "AUTHOR_SECTION", javaType = Section.class)
+    @Select({
+            "SELECT ",
+            "  ID as AUTHOR_ID,",
+            "  USERNAME as AUTHOR_USERNAME,",
+            "  PASSWORD as AUTHOR_PASSWORD,",
+            "  EMAIL as AUTHOR_EMAIL,",
+            "  BIO as AUTHOR_BIO," +
+                    "  FAVOURITE_SECTION as AUTHOR_SECTION",
+            "FROM AUTHOR WHERE ID = #{id}"})
+    Author selectAuthorUsingBothArgAndConstructorArgs(int id);
+
+    //======================================================
+
+    @Results(
+            @Result(property = "id", column = "AUTHOR_ID")
+    )
+    @Result(property = "username", column = "AUTHOR_USERNAME")
+    @Select({
+            "SELECT ",
+            "  ID as AUTHOR_ID,",
+            "  USERNAME as AUTHOR_USERNAME",
+            "FROM AUTHOR WHERE ID = #{id}"})
+    Author selectAuthorUsingBothResultAndResults(int id);
+
+    //======================================================
+
+    List<Post> findThreeSpecificPosts(@Param("one") int one,
+                                      RowBounds rowBounds,
+                                      @Param("two") int two,
+                                      int three);
+
+    @Flush
+    List<BatchResult> flush();
+
+}

docs/spring/cs5d1493c4-880e-11ee-aac4-acde48001122.java

@@ -0,0 +1,48 @@
+package com.huifer.concurrence.ch1;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * <p>Title : ThreadYield </p>
+ * <p>Description : yield</p>
+ *
+ * @author huifer
+ * @date 2019-03-27
+ */
+public class ThreadYield {
+
+    public static void main(String[] args) {
+        Task task1 = new Task(true);
+        Task task2 = new Task(false);
+        new Thread(task1).start();
+        new Thread(task2).start();
+    }
+
+
+    private static class Task implements Runnable {
+
+        private final boolean isYield;
+        private List<String> stringList = new ArrayList<>();
+
+        public Task(boolean isYield) {
+            this.isYield = isYield;
+        }
+
+        @Override
+        public void run() {
+            String name = Thread.currentThread().getName();
+            System.out.println(name + " start:");
+            for (int i = 0; i < 1000000; i++) {
+                if (isYield) {
+                    stringList.add("NO." + i);
+                    Thread.yield();
+                }
+            }
+            System.out.println(name + " end:");
+
+        }
+    }
+
+
+}