it.bz.opendatahub.alpinebits.middleware.Key Maven / Gradle / Ivy
/*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
package it.bz.opendatahub.alpinebits.middleware;
import java.util.Objects;
/**
* This class implementats for {@link Context} keys.
*
* @param type of the key
*/
public final class Key {
private final String identifier;
private final Class type;
private Key(String identifier, Class type) {
this.identifier = identifier;
this.type = type;
}
/**
* This method simplifies key building. It just wraps the
* new Key(String, Class) call.
* @param identifier key identifier
* @param type key type
* @return the key, created with the given parameters
*/
public static Key key(String identifier, Class type) {
return new Key<>(identifier, type);
}
/**
* Get the identifier of the key.
*
* @return identifier of the key
*/
public String getIdentifier() {
return identifier;
}
/**
* Get the type of the key.
*
* @return type of the key
*/
public Class getType() {
return type;
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
Key key = (Key) o;
return Objects.equals(identifier, key.identifier) &&
Objects.equals(type, key.type);
}
@Override
public int hashCode() {
return Objects.hash(identifier, type);
}
@Override
public String toString() {
return "Key{" +
"identifier='" + identifier + '\'' +
", type=" + type +
'}';
}
}