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GraphQLList.java
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67 lines (50 loc) · 1.81 KB
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package graphql.schema;
import graphql.PublicApi;
import java.util.Map;
import static graphql.Assert.assertNotNull;
/**
* A modified type that indicates there is a list of the underlying wrapped type, eg a list of strings or a list of booleans.
*
* See http://graphql.org/learn/schema/#lists-and-non-null for more details on the concept
*/
@PublicApi
public class GraphQLList implements GraphQLType, GraphQLInputType, GraphQLOutputType, GraphQLModifiedType, GraphQLNullableType {
/**
* A factory method for creating list types so that when used with static imports allows
* more readable code such as
* {@code .type(list(GraphQLString)) }
*
* @param wrappedType the type to wrap as being a list
*
* @return a GraphQLList of that wrapped type
*/
public static GraphQLList list(GraphQLType wrappedType) {
return new GraphQLList(wrappedType);
}
private GraphQLType wrappedType;
public GraphQLList(GraphQLType wrappedType) {
assertNotNull(wrappedType, "wrappedType can't be null");
this.wrappedType = wrappedType;
}
public GraphQLType getWrappedType() {
return wrappedType;
}
void replaceTypeReferences(Map<String, GraphQLType> typeMap) {
wrappedType = new SchemaUtil().resolveTypeReference(wrappedType, typeMap);
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
GraphQLList that = (GraphQLList) o;
return !(wrappedType != null ? !wrappedType.equals(that.wrappedType) : that.wrappedType != null);
}
@Override
public int hashCode() {
return wrappedType != null ? wrappedType.hashCode() : 0;
}
@Override
public String getName() {
return null;
}
}