Package org.mapstruct.ap.internal.model.source.selector

Class TypeSelector

java.lang.Object

org.mapstruct.ap.internal.model.source.selector.TypeSelector

All Implemented Interfaces:

MethodSelector

public class TypeSelector
extends java.lang.Object
implements MethodSelector

Selects those methods from the given input set which match the given source and target types (via MethodMatcher).

Field Summary

Fields

Modifier and Type	Field	Description
private FormattingMessager	messager
private TypeFactory	typeFactory

Constructor Summary

Constructors

Constructor	Description
TypeSelector(TypeFactory typeFactory, FormattingMessager messager)

Method Summary

Modifier and Type	Method	Description
private void	addMappingTargetAndTargetTypeBindings(java.util.List<ParameterBinding> availableParams, Type targetType)	Adds default parameter bindings for the mapping-target and target-type if not already available.
private static java.util.List<Type>	extractTypes(java.util.List<ParameterBinding> parameters)
private static java.util.List<ParameterBinding>	findCandidateBindingsForParameter(java.util.List<ParameterBinding> candidateParameters, Parameter parameter)
private java.util.List<ParameterBinding>	getAvailableParameterBindingsFromMethod(Method method, Type targetType, SourceRHS sourceRHS)
private java.util.List<ParameterBinding>	getAvailableParameterBindingsFromSourceTypes(java.util.List<Type> sourceTypes, Type targetType, Method mappingMethod)
private static java.util.List<java.util.List<ParameterBinding>>	getCandidateParameterBindingPermutations(java.util.List<ParameterBinding> availableParams, java.util.List<Parameter> methodParameters)
<T extends Method> java.util.List<SelectedMethod<T>>	getMatchingMethods(Method mappingMethod, java.util.List<SelectedMethod<T>> methods, java.util.List<Type> sourceTypes, Type mappingTargetType, Type returnType, SelectionCriteria criteria)	Selects those methods which match the given types and other criteria
private <T extends Method> SelectedMethod<T>	getMatchingParameterBinding(Type returnType, Method mappingMethod, SelectedMethod<T> selectedMethodInfo, java.util.List<java.util.List<ParameterBinding>> parameterAssignmentVariants)
private boolean	parameterBindingNotMatchesParameterVariableNames(java.util.List<ParameterBinding> parameterBindings, java.util.List<Parameter> parameters)	Checks if the given parameter-bindings have the same variable name than the given parameters. The first entry in the parameter-bindings belongs to the first entry in the parameters and so on.

Methods inherited from class java.lang.Object

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

Field Detail

typeFactory

private TypeFactory typeFactory

messager

private FormattingMessager messager

Constructor Detail

TypeSelector

public TypeSelector(TypeFactory typeFactory,
                    FormattingMessager messager)

Method Detail

getMatchingMethods

public <T extends Method> java.util.List<SelectedMethod<T>> getMatchingMethods(Method mappingMethod,
                                                                               java.util.List<SelectedMethod<T>> methods,
                                                                               java.util.List<Type> sourceTypes,
                                                                               Type mappingTargetType,
                                                                               Type returnType,
                                                                               SelectionCriteria criteria)

Description copied from interface: MethodSelector

Selects those methods which match the given types and other criteria

Specified by:

getMatchingMethods in interface MethodSelector

Type Parameters:

T - either SourceMethod or BuiltInMethod

Parameters:

mappingMethod - mapping method, defined in Mapper for which this selection is carried out

methods - list of available methods

sourceTypes - parameter type(s) that should be matched

mappingTargetType - mappingTargetType that should be matched

returnType - return type that should be matched

criteria - criteria used in the selection process

Returns:

list of methods that passes the matching process

getAvailableParameterBindingsFromMethod

private java.util.List<ParameterBinding> getAvailableParameterBindingsFromMethod(Method method,
                                                                                 Type targetType,
                                                                                 SourceRHS sourceRHS)

getAvailableParameterBindingsFromSourceTypes

private java.util.List<ParameterBinding> getAvailableParameterBindingsFromSourceTypes(java.util.List<Type> sourceTypes,
                                                                                      Type targetType,
                                                                                      Method mappingMethod)

addMappingTargetAndTargetTypeBindings

private void addMappingTargetAndTargetTypeBindings(java.util.List<ParameterBinding> availableParams,
                                                   Type targetType)

Adds default parameter bindings for the mapping-target and target-type if not already available.

Parameters:

availableParams - Already available params, new entries will be added to this list

targetType - Target type

getMatchingParameterBinding

private <T extends Method> SelectedMethod<T> getMatchingParameterBinding(Type returnType,
                                                                         Method mappingMethod,
                                                                         SelectedMethod<T> selectedMethodInfo,
                                                                         java.util.List<java.util.List<ParameterBinding>> parameterAssignmentVariants)

parameterBindingNotMatchesParameterVariableNames

private boolean parameterBindingNotMatchesParameterVariableNames(java.util.List<ParameterBinding> parameterBindings,
                                                                 java.util.List<Parameter> parameters)

Checks if the given parameter-bindings have the same variable name than the given parameters.
The first entry in the parameter-bindings belongs to the first entry in the parameters and so on.

Parameters:

parameterBindings - List of parameter bindings

parameters - List of parameters, must have the same size than the parameterBindings list

Returns:

true as soon as there is a parameter with a different variable name than the binding

getCandidateParameterBindingPermutations

private static java.util.List<java.util.List<ParameterBinding>> getCandidateParameterBindingPermutations(java.util.List<ParameterBinding> availableParams,
                                                                                                         java.util.List<Parameter> methodParameters)

Parameters:

availableParams - parameter bindings available in the scope of the method call

methodParameters - parameters of the method that is inspected

Returns:

all parameter binding permutations for which proper type checks need to be conducted.

findCandidateBindingsForParameter

private static java.util.List<ParameterBinding> findCandidateBindingsForParameter(java.util.List<ParameterBinding> candidateParameters,
                                                                                  Parameter parameter)

Parameters:

candidateParameters - available for assignment.

parameter - that need assignment from one of the candidate parameter bindings.

Returns:

list of candidate parameter bindings that might be assignable.

extractTypes

private static java.util.List<Type> extractTypes(java.util.List<ParameterBinding> parameters)