Main.java

package test;

import java.io.File;
import java.io.IOException;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.dataformat.yaml.YAMLFactory;

public class Main {
  public static void main(String[] args) {
    final ObjectMapper mapper = new ObjectMapper(new YAMLFactory());
    Queries queries = null;
    try {
      queries = mapper.readValue(new File("src/main/resources/queries.yml"), Queries.class);
    } catch (IOException e) {
      e.printStackTrace();
    }
    System.out.println(queries.queryMonoligne);
    System.out.println(queries.queryMultiligne);
  }
}

pom.xml

<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/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>test</groupId>
  <artifactId>test-sql-yaml</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <jackson.version>2.8.3</jackson.version>
  </properties>
  <dependencies>
    <dependency>
      <groupId>com.fasterxml.jackson.dataformat</groupId>
      <artifactId>jackson-dataformat-yaml</artifactId>
      <version>${jackson.version}</version>
    </dependency>
    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-databind</artifactId>
      <version>${jackson.version}</version>
    </dependency>
  </dependencies>
  <build>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>3.5.1</version>
        <configuration>
          <source>1.7</source>
          <target>1.7</target>
        </configuration>
      </plugin>
    </plugins>
  </build>
</project>

Queries.java

package test;


public class Queries {
  public String queryMonoligne;
  public String queryMultiligne;
}

queries.yml

queryMonoligne: 
    SELECT PJI.*, PJO.*

queryMultiligne: >
    SELECT PJI.*, PJO.*,
        CST.ABCGS
    FROM  dbo.Traverse AS TRE
                  LEFT OUTER JOIN dbo.TraversePreEntry AS TPE
                        ON TRE.JobNum = dbo.GetJobNumberFromGroupId(TPE.GroupId)
                  LEFT OUTER JOIN AutoCADProjectInformation AS PJI
                        ON TRE.JobNum = PJI.JobNumber
                  LEFT OUTER JOIN CalculationStorageReplacement AS CST
                        ON CST.ProjectNumber = dbo.GetJobNumberFromGroupId(TPE.GroupId
                  LEFT OUTER JOIN dbo.TraverseElevations AS TEV
                      ON TRE.TraverseId = TEV.TraverseId
                  LEFT OUTER JOIN VGSDB.dbo.ProjectOffice AS PJO
                        ON PJI.PjbId = PJO.PjbId
    where jobnum = 1205992