graphql.util.Breadcrumb Maven / Gradle / Ivy
package graphql.util;
import graphql.PublicApi;
import java.util.Objects;
import java.util.StringJoiner;
/**
* A specific {@link NodeLocation} inside a node. This means {@link #getNode()} returns a Node which has a child
* at {@link #getLocation()}
*
* A list of Breadcrumbs is used to identify the exact location of a specific node inside a tree.
*
* @param the generic type of object
*/
@PublicApi
public class Breadcrumb {
private final T node;
private final NodeLocation location;
public Breadcrumb(T node, NodeLocation location) {
this.node = node;
this.location = location;
}
public T getNode() {
return node;
}
public NodeLocation getLocation() {
return location;
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
Breadcrumb that = (Breadcrumb) o;
return Objects.equals(node, that.node) &&
Objects.equals(location, that.location);
}
@Override
public int hashCode() {
int result = 1;
result = 31 * result + Objects.hashCode(node);
result = 31 * result + Objects.hashCode(location);
return result;
}
@Override
public String toString() {
return new StringJoiner(", ", "[", "]")
.add("" + location)
.add("" + node)
.toString();
}
}