org.immutables.fixture.builder.ImmutableToBuilderClassic Maven / Gradle / Ivy
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package org.immutables.fixture.builder;
import com.google.common.base.MoreObjects;
import com.google.errorprone.annotations.CanIgnoreReturnValue;
import com.google.errorprone.annotations.Var;
import java.util.ArrayList;
import java.util.List;
import java.util.Objects;
import javax.annotation.CheckReturnValue;
import javax.annotation.Nullable;
import javax.annotation.ParametersAreNonnullByDefault;
import javax.annotation.concurrent.Immutable;
import javax.annotation.concurrent.NotThreadSafe;
import org.immutables.value.Generated;
/**
* Immutable implementation of {@link ToBuilderMethod.ToBuilderClassic}.
*
* Use the builder to create immutable instances:
* {@code ImmutableToBuilderClassic.builder()}.
*/
@Generated(from = "ToBuilderMethod.ToBuilderClassic", generator = "Immutables")
@SuppressWarnings({"all"})
@ParametersAreNonnullByDefault
@javax.annotation.processing.Generated("org.immutables.processor.ProxyProcessor")
@Immutable
@CheckReturnValue
public final class ImmutableToBuilderClassic
implements ToBuilderMethod.ToBuilderClassic {
private final int a;
private final String b;
private ImmutableToBuilderClassic(int a, String b) {
this.a = a;
this.b = b;
}
/**
* @return The value of the {@code a} attribute
*/
@Override
public int a() {
return a;
}
/**
* @return The value of the {@code b} attribute
*/
@Override
public String b() {
return b;
}
/**
* Copy the current immutable object by setting a value for the {@link ToBuilderMethod.ToBuilderClassic#a() a} attribute.
* A value equality check is used to prevent copying of the same value by returning {@code this}.
* @param value A new value for a
* @return A modified copy of the {@code this} object
*/
public final ImmutableToBuilderClassic withA(int value) {
if (this.a == value) return this;
return new ImmutableToBuilderClassic(value, this.b);
}
/**
* Copy the current immutable object by setting a value for the {@link ToBuilderMethod.ToBuilderClassic#b() b} attribute.
* An equals check used to prevent copying of the same value by returning {@code this}.
* @param value A new value for b
* @return A modified copy of the {@code this} object
*/
public final ImmutableToBuilderClassic withB(String value) {
String newValue = Objects.requireNonNull(value, "b");
if (this.b.equals(newValue)) return this;
return new ImmutableToBuilderClassic(this.a, newValue);
}
/**
* This instance is equal to all instances of {@code ImmutableToBuilderClassic} 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 ImmutableToBuilderClassic
&& equalTo(0, (ImmutableToBuilderClassic) another);
}
private boolean equalTo(int synthetic, ImmutableToBuilderClassic another) {
return a == another.a
&& b.equals(another.b);
}
/**
* Computes a hash code from attributes: {@code a}, {@code b}.
* @return hashCode value
*/
@Override
public int hashCode() {
@Var int h = 5381;
h += (h << 5) + a;
h += (h << 5) + b.hashCode();
return h;
}
/**
* Prints the immutable value {@code ToBuilderClassic} with attribute values.
* @return A string representation of the value
*/
@Override
public String toString() {
return MoreObjects.toStringHelper("ToBuilderClassic")
.omitNullValues()
.add("a", a)
.add("b", b)
.toString();
}
/**
* Creates an immutable copy of a {@link ToBuilderMethod.ToBuilderClassic} 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 ToBuilderClassic instance
*/
public static ImmutableToBuilderClassic copyOf(ToBuilderMethod.ToBuilderClassic instance) {
if (instance instanceof ImmutableToBuilderClassic) {
return (ImmutableToBuilderClassic) instance;
}
return ImmutableToBuilderClassic.builder()
.from(instance)
.build();
}
/**
* Creates a builder for {@link ImmutableToBuilderClassic ImmutableToBuilderClassic}.prefilled
* with attibute values of {@code this} instance to easily create modified copies.
* @return A new ImmutableToBuilderClassic builder with attributes of {@code this} instance
*/
public ImmutableToBuilderClassic.Builder toBuilder() {
return ImmutableToBuilderClassic.builder().from(this);
}
/**
* Creates a builder for {@link ImmutableToBuilderClassic ImmutableToBuilderClassic}.
*
* ImmutableToBuilderClassic.builder()
* .a(int) // required {@link ToBuilderMethod.ToBuilderClassic#a() a}
* .b(String) // required {@link ToBuilderMethod.ToBuilderClassic#b() b}
* .build();
*
* @return A new ImmutableToBuilderClassic builder
*/
public static ImmutableToBuilderClassic.Builder builder() {
return new ImmutableToBuilderClassic.Builder();
}
/**
* Builds instances of type {@link ImmutableToBuilderClassic ImmutableToBuilderClassic}.
* 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.
*/
@Generated(from = "ToBuilderMethod.ToBuilderClassic", generator = "Immutables")
@NotThreadSafe
public static final class Builder {
private static final long INIT_BIT_A = 0x1L;
private static final long INIT_BIT_B = 0x2L;
private long initBits = 0x3L;
private int a;
private @Nullable String b;
private Builder() {
}
/**
* Fill a builder with attribute values from the provided {@code ToBuilderClassic} 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
*/
@CanIgnoreReturnValue
public final Builder from(ToBuilderMethod.ToBuilderClassic instance) {
Objects.requireNonNull(instance, "instance");
a(instance.a());
b(instance.b());
return this;
}
/**
* Initializes the value for the {@link ToBuilderMethod.ToBuilderClassic#a() a} attribute.
* @param a The value for a
* @return {@code this} builder for use in a chained invocation
*/
@CanIgnoreReturnValue
public final Builder a(int a) {
this.a = a;
initBits &= ~INIT_BIT_A;
return this;
}
/**
* Initializes the value for the {@link ToBuilderMethod.ToBuilderClassic#b() b} attribute.
* @param b The value for b
* @return {@code this} builder for use in a chained invocation
*/
@CanIgnoreReturnValue
public final Builder b(String b) {
this.b = Objects.requireNonNull(b, "b");
initBits &= ~INIT_BIT_B;
return this;
}
/**
* Builds a new {@link ImmutableToBuilderClassic ImmutableToBuilderClassic}.
* @return An immutable instance of ToBuilderClassic
* @throws java.lang.IllegalStateException if any required attributes are missing
*/
public ImmutableToBuilderClassic build() {
if (initBits != 0) {
throw new IllegalStateException(formatRequiredAttributesMessage());
}
return new ImmutableToBuilderClassic(a, b);
}
private String formatRequiredAttributesMessage() {
List attributes = new ArrayList<>();
if ((initBits & INIT_BIT_A) != 0) attributes.add("a");
if ((initBits & INIT_BIT_B) != 0) attributes.add("b");
return "Cannot build ToBuilderClassic, some of required attributes are not set " + attributes;
}
}
}