common-clients/src/main/java/org/gcube/common/clients/cache/Key.java

82 lines
1.9 KiB
Java

package org.gcube.common.clients.cache;
import org.gcube.common.clients.queries.Query;
import org.gcube.common.scope.api.ScopeProvider;
/**
* Keys for cross-service {@link EndpointCache}s comprised of a service name, a {@link Query}, and a scope.
*
* <p>
* Keys are <em>value objects</em> with informative string representations.
*
* @author Fabio Simeoni
*
*/
public final class Key {
private final String name;
private final Query<?> query;
private final String scope;
/**
* Creates a {@link Key} with a given service name and {@link Query}
* @param name the name
* @param query the query
* @return the key
*/
public static Key key(String name, Query<?> query) {
return new Key(name, query);
}
//private
private Key(String name, Query<?> query) {
this.name = name;
this.query = query;
this.scope = ScopeProvider.instance.get();
}
@Override
public String toString() {
return "Key [name=" + name + ", query=" + query + ", scope=" + scope + "]";
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((name == null) ? 0 : name.hashCode());
result = prime * result + ((query == null) ? 0 : query.hashCode());
result = prime * result + ((scope == null) ? 0 : scope.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
Key other = (Key) obj;
if (name == null) {
if (other.name != null)
return false;
} else if (!name.equals(other.name))
return false;
if (query == null) {
if (other.query != null)
return false;
} else if (!query.equals(other.query))
return false;
if (scope == null) {
if (other.scope != null)
return false;
} else if (!scope.equals(other.scope))
return false;
return true;
}
}