Package graphql.normalized

Class ExecutableNormalizedField

  • public class ExecutableNormalizedField
extends java.lang.Object
    Intentionally Mutable

    • Method Detail

      • isConditional

        public boolean isConditional​(@NotNull
                             @NotNull GraphQLSchema schema)
        Determines whether this NF needs a fragment to select the field. However, it considers the parent output type when determining whether it needs a fragment.

        Consider the following schema 

         interface Animal {
     name: String
     parent: Animal
 }
 type Cat implements Animal {
     name: String
     parent: Cat
 }
 type Dog implements Animal {
     name: String
     parent: Dog
     isGoodBoy: Boolean
 }
 type Query {
     animal: Animal
 }

        and the following query 

         {
     animal {
         parent {
             name
         }
     }
 }

        Then we would get the following normalized operation tree 

         -Query.animal: Animal
 --[Cat, Dog].parent: Cat, Dog
 ---[Cat, Dog].name: String

        If we simply checked the parent's getFieldDefinitions(GraphQLSchema) that would point us to Cat.parent and Dog.parent whose output types would incorrectly answer our question whether this is conditional?

        We MUST consider that the output type of the parent field is Animal and NOT Cat or Dog as their respective impls would say.

        Parameters:
        schema - - the graphql schema in play
        Returns:
        true if the field is conditional

      • hasChildren

        public boolean hasChildren()

      • addObjectTypeNames

        public void addObjectTypeNames​(java.util.Collection<java.lang.String> objectTypeNames)

      • setObjectTypeNames

        public void setObjectTypeNames​(java.util.Collection<java.lang.String> objectTypeNames)

      • clearChildren

        public void clearChildren()

      • getName

        public java.lang.String getName()
        All merged fields have the same name.

        WARNING: This is not always the key in the execution result, because of possible aliases. See getResultKey()

        Returns:
        the name of of the merged fields.

      • getResultKey

        public java.lang.String getResultKey()
        Returns the key of this MergedFieldWithType for the overall result. This is either an alias or the FieldWTC name.
        Returns:
        the key for this MergedFieldWithType.

      • getAlias

        public java.lang.String getAlias()

      • getAstArguments

        public com.google.common.collect.ImmutableList<Argument> getAstArguments()

      • getNormalizedArgument

        public NormalizedInputValue getNormalizedArgument​(java.lang.String name)

      • getNormalizedArguments

        public com.google.common.collect.ImmutableMap<java.lang.String,​NormalizedInputValue> getNormalizedArguments()

      • getResolvedArguments

        public java.util.LinkedHashMap<java.lang.String,​java.lang.Object> getResolvedArguments()

      • getFieldName

        public java.lang.String getFieldName()

      • getObjectTypeNames

        public java.util.Set<java.lang.String> getObjectTypeNames()
        Returns:
        Warning: returns a Mutable Set. No defensive copy is made for performance reasons.

      • getSingleObjectTypeName

        public java.lang.String getSingleObjectTypeName()

      • printDetails

        public java.lang.String printDetails()

      • objectTypeNamesToString

        public java.lang.String objectTypeNamesToString()

      • getListOfResultKeys

        public java.util.List<java.lang.String> getListOfResultKeys()

      • getChildrenWithSameResultKey

        public java.util.List<ExecutableNormalizedField> getChildrenWithSameResultKey​(java.lang.String resultKey)

      • getChildren

        public java.util.List<ExecutableNormalizedField> getChildren​(java.lang.String objectTypeName)
        This returns the child fields that can be used if the object is of the specified object type
        Parameters:
        objectTypeName - the object type
        Returns:
        a list of child fields that would apply to that object type

      • getLevel

        public int getLevel()

      • toString

        public java.lang.String toString()
        Overrides:
        toString in class java.lang.Object