s.value-fixture.2.2.source-code.ImmutableInDefaultPackage Maven / Gradle / Ivy

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import com.google.common.base.MoreObjects;
import com.google.common.base.Preconditions;
import com.google.common.collect.Lists;
import java.util.List;
import javax.annotation.Generated;
import javax.annotation.Nullable;
import javax.annotation.ParametersAreNonnullByDefault;
import javax.annotation.concurrent.Immutable;
import javax.annotation.concurrent.NotThreadSafe;

/**
 * Immutable implementation of {@link InDefaultPackage}.
 * 
 * Use the builder to create immutable instances:
 * {@code ImmutableInDefaultPackage.builder()}.
 */
@SuppressWarnings("all")
@ParametersAreNonnullByDefault
@Generated({"Immutables.generator", "InDefaultPackage"})
@Immutable
final class ImmutableInDefaultPackage implements InDefaultPackage {
  private final int attr;

  private ImmutableInDefaultPackage(int attr) {
    this.attr = attr;
  }

  /**
   * @return The value of the {@code attr} attribute
   */
  @Override
  public int attr() {
    return attr;
  }

  /**
   * Copy the current immutable object by setting a value for the {@link InDefaultPackage#attr() attr} attribute.
   * A value equality check is used to prevent copying of the same value by returning {@code this}.
   * @param attr A new value for attr
   * @return A modified copy of the {@code this} object
   */
  public final ImmutableInDefaultPackage withAttr(int attr) {
    if (this.attr == attr) return this;
    return new ImmutableInDefaultPackage(attr);
  }

  /**
   * This instance is equal to all instances of {@code ImmutableInDefaultPackage} that have equal attribute values.
   * @return {@code true} if {@code this} is equal to {@code another} instance
   */
  @Override
  public boolean equals(@Nullable Object another) {
    if (this == another) return true;
    return another instanceof ImmutableInDefaultPackage
        && equalTo((ImmutableInDefaultPackage) another);
  }

  private boolean equalTo(ImmutableInDefaultPackage another) {
    return attr == another.attr;
  }

  /**
   * Computes a hash code from attributes: {@code attr}.
   * @return hashCode value
   */
  @Override
  public int hashCode() {
    int h = 31;
    h = h * 17 + attr;
    return h;
  }

  /**
   * Prints the immutable value {@code InDefaultPackage} with attribute values.
   * @return A string representation of the value
   */
  @Override
  public String toString() {
    return MoreObjects.toStringHelper("InDefaultPackage")
        .omitNullValues()
        .add("attr", attr)
        .toString();
  }

  /**
   * Creates an immutable copy of a {@link InDefaultPackage} value.
   * Uses accessors to get values to initialize the new immutable instance.
   * If an instance is already immutable, it is returned as is.
   * @param instance The instance to copy
   * @return A copied immutable InDefaultPackage instance
   */
  public static ImmutableInDefaultPackage copyOf(InDefaultPackage instance) {
    if (instance instanceof ImmutableInDefaultPackage) {
      return (ImmutableInDefaultPackage) instance;
    }
    return ImmutableInDefaultPackage.builder()
        .from(instance)
        .build();
  }

  /**
   * Creates a builder for {@link ImmutableInDefaultPackage ImmutableInDefaultPackage}.
   * @return A new ImmutableInDefaultPackage builder
   */
  public static ImmutableInDefaultPackage.Builder builder() {
    return new ImmutableInDefaultPackage.Builder();
  }

  /**
   * Builds instances of type {@link ImmutableInDefaultPackage ImmutableInDefaultPackage}.
   * Initialize attributes and then invoke the {@link #build()} method to create an
   * immutable instance.
   * {@code Builder} is not thread-safe and generally should not be stored in a field or collection,
   * but instead used immediately to create instances.
   */
  @NotThreadSafe
  static final class Builder {
    private static final long INIT_BIT_ATTR = 0x1L;
    private long initBits = 0x1L;

    private int attr;

    private Builder() {
    }

    /**
     * Fill a builder with attribute values from the provided {@code InDefaultPackage} instance.
     * Regular attribute values will be replaced with those from the given instance.
     * Absent optional values will not replace present values.
     * @param instance The instance from which to copy values
     * @return {@code this} builder for use in a chained invocation
     */
    public final Builder from(InDefaultPackage instance) {
      Preconditions.checkNotNull(instance, "instance");
      attr(instance.attr());
      return this;
    }

    /**
     * Initializes the value for the {@link InDefaultPackage#attr() attr} attribute.
     * @param attr The value for attr 
     * @return {@code this} builder for use in a chained invocation
     */
    public final Builder attr(int attr) {
      this.attr = attr;
      initBits &= ~INIT_BIT_ATTR;
      return this;
    }

    /**
     * Builds a new {@link ImmutableInDefaultPackage ImmutableInDefaultPackage}.
     * @return An immutable instance of InDefaultPackage
     * @throws java.lang.IllegalStateException if any required attributes are missing
     */
    public ImmutableInDefaultPackage build() {
      if (initBits != 0) {
        throw new IllegalStateException(formatRequiredAttributesMessage());
      }
      return new ImmutableInDefaultPackage(attr);
    }

    private String formatRequiredAttributesMessage() {
      List attributes = Lists.newArrayList();
      if ((initBits & INIT_BIT_ATTR) != 0) attributes.add("attr");
      return "Cannot build InDefaultPackage, some of required attributes are not set " + attributes;
    }
  }
}