Class ExecutableNormalizedOperationToAstCompiler

java.lang.Object

graphql.normalized.ExecutableNormalizedOperationToAstCompiler

@PublicApi
public class ExecutableNormalizedOperationToAstCompiler
extends Object

This class can take a list of ExecutableNormalizedFields and compiling out a normalised operation Document that would represent how those fields maybe executed.

This is essentially the reverse of ExecutableNormalizedOperationFactory which takes operation text and makes ExecutableNormalizedFields from it, this takes ExecutableNormalizedFields and makes operation text from it.

You could for example send that operation text onto to some other graphql server if it has the same schema as the one provided.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ExecutableNormalizedOperationToAstCompiler.CompilerResult	The result is a Document and a map of variables that would go with that document.

Constructor Summary

Constructors

Constructor	Description
ExecutableNormalizedOperationToAstCompiler()

Method Summary

Modifier and Type	Method	Description
private static @NotNull Value<?>	argValue(ExecutableNormalizedField executableNormalizedField, String argName, NormalizedInputValue normalizedInputValue, VariableAccumulator variableAccumulator)
private static Value<?>	argValue(ExecutableNormalizedField executableNormalizedField, String argName, @Nullable Object value, VariableAccumulator variableAccumulator)
static ExecutableNormalizedOperationToAstCompiler.CompilerResult	compileToDocument(@NotNull GraphQLSchema schema, OperationDefinition.Operation operationKind, @Nullable String operationName, @NotNull List<ExecutableNormalizedField> topLevelFields, @Nullable VariablePredicate variablePredicate)	This will compile an operation text Document with possibly variables from the given ExecutableNormalizedFields The VariablePredicate is used called to decide if the given argument values should be made into a variable OR inlined into the operation text as a graphql literal.
static ExecutableNormalizedOperationToAstCompiler.CompilerResult	compileToDocument(@NotNull GraphQLSchema schema, OperationDefinition.Operation operationKind, @Nullable String operationName, @NotNull List<ExecutableNormalizedField> topLevelFields, @NotNull Map<ExecutableNormalizedField, QueryDirectives> normalizedFieldToQueryDirectives, @Nullable VariablePredicate variablePredicate)	This will compile an operation text Document with possibly variables from the given ExecutableNormalizedFields The VariablePredicate is used called to decide if the given argument values should be made into a variable OR inlined into the operation text as a graphql literal.
private static List<Argument>	createArguments(ExecutableNormalizedField executableNormalizedField, VariableAccumulator variableAccumulator)
private static @NotNull GraphQLFieldDefinition	getFieldDefinition(GraphQLSchema schema, String parentType, ExecutableNormalizedField nf)
private static @Nullable GraphQLObjectType	getOperationType(@NotNull GraphQLSchema schema, OperationDefinition.Operation operationKind)
private static Map<String,Field>	selectionForNormalizedField(GraphQLSchema schema, ExecutableNormalizedField executableNormalizedField, @NotNull Map<ExecutableNormalizedField, QueryDirectives> normalizedFieldToQueryDirectives, VariableAccumulator variableAccumulator)
private static Field	selectionForNormalizedField(GraphQLSchema schema, String objectTypeName, ExecutableNormalizedField executableNormalizedField, @NotNull Map<ExecutableNormalizedField, QueryDirectives> normalizedFieldToQueryDirectives, VariableAccumulator variableAccumulator)
private static SelectionSet	selectionSet(List<Field> fields)
private static @Nullable SelectionSet	selectionSetOrNullIfEmpty(List<Selection<?>> selections)
private static List<Selection<?>>	subselectionsForNormalizedField(GraphQLSchema schema, @NotNull String parentOutputType, List<ExecutableNormalizedField> executableNormalizedFields, @NotNull Map<ExecutableNormalizedField, QueryDirectives> normalizedFieldToQueryDirectives, VariableAccumulator variableAccumulator)

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

ExecutableNormalizedOperationToAstCompiler

public ExecutableNormalizedOperationToAstCompiler()

Method Details

compileToDocument

public static ExecutableNormalizedOperationToAstCompiler.CompilerResult compileToDocument(@NotNull
 @NotNull GraphQLSchema schema,
 @NotNull
 OperationDefinition.Operation operationKind,
 @Nullable
 @Nullable String operationName,
 @NotNull
 @NotNull List<ExecutableNormalizedField> topLevelFields,
 @Nullable
 @Nullable VariablePredicate variablePredicate)

This will compile an operation text Document with possibly variables from the given ExecutableNormalizedFields The VariablePredicate is used called to decide if the given argument values should be made into a variable OR inlined into the operation text as a graphql literal.

Parameters:

schema - the graphql schema to use

operationKind - the kind of operation

operationName - the name of the operation to use

topLevelFields - the top level ExecutableNormalizedFields to start from

variablePredicate - the variable predicate that decides if arguments turn into variables or not during compilation

Returns:

a ExecutableNormalizedOperationToAstCompiler.CompilerResult object

compileToDocument

public static ExecutableNormalizedOperationToAstCompiler.CompilerResult compileToDocument(@NotNull
 @NotNull GraphQLSchema schema,
 @NotNull
 OperationDefinition.Operation operationKind,
 @Nullable
 @Nullable String operationName,
 @NotNull
 @NotNull List<ExecutableNormalizedField> topLevelFields,
 @NotNull
 @NotNull Map<ExecutableNormalizedField, QueryDirectives> normalizedFieldToQueryDirectives,
 @Nullable
 @Nullable VariablePredicate variablePredicate)

This will compile an operation text Document with possibly variables from the given ExecutableNormalizedFields The VariablePredicate is used called to decide if the given argument values should be made into a variable OR inlined into the operation text as a graphql literal.

Parameters:

schema - the graphql schema to use

operationKind - the kind of operation

operationName - the name of the operation to use

topLevelFields - the top level ExecutableNormalizedFields to start from

normalizedFieldToQueryDirectives - the map of normalized field to query directives

variablePredicate - the variable predicate that decides if arguments turn into variables or not during compilation

Returns:

a ExecutableNormalizedOperationToAstCompiler.CompilerResult object

subselectionsForNormalizedField

private static List<Selection<?>> subselectionsForNormalizedField(GraphQLSchema schema,
 @NotNull
 @NotNull String parentOutputType,
 List<ExecutableNormalizedField> executableNormalizedFields,
 @NotNull
 @NotNull Map<ExecutableNormalizedField, QueryDirectives> normalizedFieldToQueryDirectives,
 VariableAccumulator variableAccumulator)

selectionForNormalizedField

private static Map<String,Field> selectionForNormalizedField(GraphQLSchema schema,
 ExecutableNormalizedField executableNormalizedField,
 @NotNull
 @NotNull Map<ExecutableNormalizedField, QueryDirectives> normalizedFieldToQueryDirectives,
 VariableAccumulator variableAccumulator)

Returns:

Map of object type names to list of fields

selectionForNormalizedField

private static Field selectionForNormalizedField(GraphQLSchema schema,
 String objectTypeName,
 ExecutableNormalizedField executableNormalizedField,
 @NotNull
 @NotNull Map<ExecutableNormalizedField, QueryDirectives> normalizedFieldToQueryDirectives,
 VariableAccumulator variableAccumulator)

Returns:

Map of object type names to list of fields

selectionSetOrNullIfEmpty

@Nullable
private static @Nullable SelectionSet selectionSetOrNullIfEmpty(List<Selection<?>> selections)

selectionSet

private static SelectionSet selectionSet(List<Field> fields)

createArguments

private static List<Argument> createArguments(ExecutableNormalizedField executableNormalizedField,
 VariableAccumulator variableAccumulator)

argValue

private static Value<?> argValue(ExecutableNormalizedField executableNormalizedField,
 String argName,
 @Nullable
 @Nullable Object value,
 VariableAccumulator variableAccumulator)

argValue

@NotNull
private static @NotNull Value<?> argValue(ExecutableNormalizedField executableNormalizedField,
 String argName,
 NormalizedInputValue normalizedInputValue,
 VariableAccumulator variableAccumulator)

getFieldDefinition

@NotNull
private static @NotNull GraphQLFieldDefinition getFieldDefinition(GraphQLSchema schema,
 String parentType,
 ExecutableNormalizedField nf)

getOperationType

@Nullable
private static @Nullable GraphQLObjectType getOperationType(@NotNull
 @NotNull GraphQLSchema schema,
 @NotNull
 OperationDefinition.Operation operationKind)