dagger.producers.monitoring.ProducerToken Maven / Gradle / Ivy
Show all versions of dagger-producers Show documentation
/*
* Copyright (C) 2015 The Dagger Authors.
*
* 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
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* 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 dagger.producers.monitoring;
import static com.google.common.base.Preconditions.checkNotNull;
import dagger.producers.Produces;
import java.util.Objects;
import org.checkerframework.checker.nullness.compatqual.NullableDecl;
/** A token that represents an individual {@linkplain Produces producer method}. */
public final class ProducerToken {
@NullableDecl private final Class classToken;
@NullableDecl private final String methodName;
private ProducerToken(@NullableDecl Class classToken, @NullableDecl String methodName) {
this.classToken = classToken;
this.methodName = methodName;
}
/**
* Creates a token for a class token that represents the generated factory for a producer method.
*
* Do not use this! This is intended to be called by generated code only, and its
* signature may change at any time.
*/
public static ProducerToken create(Class classToken) {
return new ProducerToken(checkNotNull(classToken), null);
}
/**
* Creates a token for a producer method.
*
*
Do not use this! This is intended to be called by generated code only, and its
* signature may change at any time.
*/
public static ProducerToken create(String methodName) {
return new ProducerToken(null, checkNotNull(methodName));
}
/** Two tokens are equal if they represent the same method. */
@Override
public boolean equals(Object o) {
if (o == this) {
return true;
} else if (o instanceof ProducerToken) {
ProducerToken that = (ProducerToken) o;
return Objects.equals(this.classToken, that.classToken)
&& Objects.equals(this.methodName, that.methodName);
} else {
return false;
}
}
/** Returns an appropriate hash code to match {@link #equals(Object)}. */
@Override
public int hashCode() {
int h = 1;
h *= 1000003;
h ^= Objects.hashCode(this.classToken);
h *= 1000003;
h ^= Objects.hashCode(this.methodName);
return h;
}
/** Returns a representation of the method. */
@Override
public String toString() {
if (methodName != null) {
return methodName;
} else if (classToken != null) {
return classToken.getCanonicalName();
} else {
throw new IllegalStateException();
}
}
}