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package graphql.util;

import graphql.PublicApi;

import java.util.Objects;

/**

* A specific {@link NodeLocation} inside a node. This means {@link #getNode()} returns a Node which has a child

* at {@link #getLocation()}

* <p>

* A list of Breadcrumbs is used to identify the exact location of a specific node inside a tree.

*

* @param <T> the generic type of object

*/

@PublicApi

public class Breadcrumb<T> {

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;

}

}