// =================== DO NOT EDIT THIS FILE ====================
   //  Generated by Modello Velocity from model.vm
   //  template, any modifications will be overwritten.
   // ==============================================================
   package org.apache.maven.api.metadata;
   
   import java.io.Serializable;
   import java.util.Collections;
   import java.util.HashMap;
  import java.util.Map;
  import java.util.Objects;
  import java.util.Optional;
  import java.util.Set;
  import java.util.stream.Collectors;
  import java.util.stream.Stream;
  import org.apache.maven.api.annotations.Experimental;
  import org.apache.maven.api.annotations.Generated;
  import org.apache.maven.api.annotations.Immutable;
  import org.apache.maven.api.annotations.Nonnull;
  import org.apache.maven.api.annotations.NotThreadSafe;
  import org.apache.maven.api.annotations.ThreadSafe;
  
  /**
   * Versioning information for a sub-artifact of the current snapshot artifact.
   */
  @Experimental
  @Generated @ThreadSafe @Immutable
  public class SnapshotVersion
      implements Serializable
  {
      /**
       * The classifier of the sub-artifact. Each classifier and extension pair may only appear once.
       */
      final String classifier;
      /**
       * The file extension of the sub-artifact. Each classifier and extension pair may only appear once.
       */
      final String extension;
      /**
       * The resolved snapshot version of the sub-artifact.
       */
      final String version;
      /**
       * The timestamp when this version information was last updated. The timestamp is expressed using UTC in the format yyyyMMddHHmmss.
       */
      final String updated;
  
      /**
        * Constructor for this class, to be called from its subclasses and {@link Builder}.
        * @see Builder#build()
        */
      protected SnapshotVersion(Builder builder) {
          this.classifier = builder.classifier != null ? builder.classifier : (builder.base != null ? builder.base.classifier : null);
          this.extension = builder.extension != null ? builder.extension : (builder.base != null ? builder.base.extension : null);
          this.version = builder.version != null ? builder.version : (builder.base != null ? builder.base.version : null);
          this.updated = builder.updated != null ? builder.updated : (builder.base != null ? builder.base.updated : null);
      }
  
      @Override
      public boolean equals(Object o) {
          if (this == o) {
              return true;
          }
          if (o == null || !(o instanceof SnapshotVersion)) {
              return false;
          }
          SnapshotVersion that = (SnapshotVersion) o;
          return Objects.equals( this.classifier, that.classifier ) && Objects.equals( this.extension, that.extension ) && Objects.equals( this.version, that.version ) && Objects.equals( this.updated, that.updated );
      }
  
      @Override
      public int hashCode() {
          return Objects.hash(classifier, this.extension, this.version, this.updated);
      }
  
      /**
       * The classifier of the sub-artifact. Each classifier and extension pair may only appear once.
       *
       * @return a {@code String}
       */
      public String getClassifier() {
          return this.classifier;
      }
  
      /**
       * The file extension of the sub-artifact. Each classifier and extension pair may only appear once.
       *
       * @return a {@code String}
       */
      public String getExtension() {
          return this.extension;
      }
  
      /**
       * The resolved snapshot version of the sub-artifact.
       *
       * @return a {@code String}
       */
      public String getVersion() {
         return this.version;
     }
 
     /**
      * The timestamp when this version information was last updated. The timestamp is expressed using UTC in the format yyyyMMddHHmmss.
      *
      * @return a {@code String}
      */
     public String getUpdated() {
         return this.updated;
     }
 
     /**
      * Creates a new builder with this object as the basis.
      *
      * @return a {@code Builder}
      */
     @Nonnull
     public Builder with() {
         return newBuilder(this);
     }
     /**
      * Creates a new {@code SnapshotVersion} instance using the specified classifier.
      *
      * @param classifier the new {@code String} to use
      * @return a {@code SnapshotVersion} with the specified classifier
      */
     @Nonnull
     public SnapshotVersion withClassifier(String classifier) {
         return newBuilder(this, true).classifier(classifier).build();
     }
     /**
      * Creates a new {@code SnapshotVersion} instance using the specified extension.
      *
      * @param extension the new {@code String} to use
      * @return a {@code SnapshotVersion} with the specified extension
      */
     @Nonnull
     public SnapshotVersion withExtension(String extension) {
         return newBuilder(this, true).extension(extension).build();
     }
     /**
      * Creates a new {@code SnapshotVersion} instance using the specified version.
      *
      * @param version the new {@code String} to use
      * @return a {@code SnapshotVersion} with the specified version
      */
     @Nonnull
     public SnapshotVersion withVersion(String version) {
         return newBuilder(this, true).version(version).build();
     }
     /**
      * Creates a new {@code SnapshotVersion} instance using the specified updated.
      *
      * @param updated the new {@code String} to use
      * @return a {@code SnapshotVersion} with the specified updated
      */
     @Nonnull
     public SnapshotVersion withUpdated(String updated) {
         return newBuilder(this, true).updated(updated).build();
     }
 
     /**
      * Creates a new {@code SnapshotVersion} instance.
      * Equivalent to {@code newInstance(true)}.
      * @see #newInstance(boolean)
      *
      * @return a new {@code SnapshotVersion}
      */
     @Nonnull
     public static SnapshotVersion newInstance() {
         return newInstance(true);
     }
 
     /**
      * Creates a new {@code SnapshotVersion} instance using default values or not.
      * Equivalent to {@code newBuilder(withDefaults).build()}.
      *
      * @param withDefaults the boolean indicating whether default values should be used
      * @return a new {@code SnapshotVersion}
      */
     @Nonnull
     public static SnapshotVersion newInstance(boolean withDefaults) {
         return newBuilder(withDefaults).build();
     }
 
     /**
      * Creates a new {@code SnapshotVersion} builder instance.
      * Equivalent to {@code newBuilder(true)}.
      * @see #newBuilder(boolean)
      *
      * @return a new {@code Builder}
      */
     @Nonnull
     public static Builder newBuilder() {
         return newBuilder(true);
     }
 
     /**
      * Creates a new {@code SnapshotVersion} builder instance using default values or not.
      *
      * @param withDefaults the boolean indicating whether default values should be used
      * @return a new {@code Builder}
      */
     @Nonnull
     public static Builder newBuilder(boolean withDefaults) {
         return new Builder(withDefaults);
     }
 
     /**
      * Creates a new {@code SnapshotVersion} builder instance using the specified object as a basis.
      * Equivalent to {@code newBuilder(from, false)}.
      *
      * @param from the {@code SnapshotVersion} instance to use as a basis
      * @return a new {@code Builder}
      */
     @Nonnull
     public static Builder newBuilder(SnapshotVersion from) {
         return newBuilder(from, false);
     }
 
     /**
      * Creates a new {@code SnapshotVersion} builder instance using the specified object as a basis.
      *
      * @param from the {@code SnapshotVersion} instance to use as a basis
      * @param forceCopy the boolean indicating if a copy should be forced
      * @return a new {@code Builder}
      */
     @Nonnull
     public static Builder newBuilder(SnapshotVersion from, boolean forceCopy) {
         return new Builder(from, forceCopy);
     }
 
     /**
      * Builder class used to create SnapshotVersion instances.
      * @see #with()
      * @see #newBuilder()
      */
     @NotThreadSafe
     public static class Builder
     {
         SnapshotVersion base;
         String classifier;
         String extension;
         String version;
         String updated;
 
         protected Builder(boolean withDefaults) {
             if (withDefaults) {
             }
         }
 
         protected Builder(SnapshotVersion base, boolean forceCopy) {
             if (forceCopy) {
                 this.classifier = base.classifier;
                 this.extension = base.extension;
                 this.version = base.version;
                 this.updated = base.updated;
             } else {
                 this.base = base;
             }
         }
 
         @Nonnull
         public Builder classifier(String classifier) {
             this.classifier = classifier;
             return this;
         }
 
         @Nonnull
         public Builder extension(String extension) {
             this.extension = extension;
             return this;
         }
 
         @Nonnull
         public Builder version(String version) {
             this.version = version;
             return this;
         }
 
         @Nonnull
         public Builder updated(String updated) {
             this.updated = updated;
             return this;
         }
 
 
         @Nonnull
         public SnapshotVersion build() {
             // this method should not contain any logic other than creating (or reusing) an object in order to ease subclassing
             if (base != null
                     && (classifier == null || classifier == base.classifier)
                     && (extension == null || extension == base.extension)
                     && (version == null || version == base.version)
                     && (updated == null || updated == base.updated)
             ) {
                 return base;
             }
             return new SnapshotVersion(this);
         }
 
     }
 
 }