Class CombinedTypeSolver

java.lang.Object

com.github.javaparser.symbolsolver.resolution.typesolvers.CombinedTypeSolver

All Implemented Interfaces:

TypeSolver

public class CombinedTypeSolver
extends Object
implements TypeSolver

A container for type solvers. All solving is done by the contained type solvers. This helps you when an API asks for a single type solver, but you need several.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	CombinedTypeSolver.ExceptionHandlers	Provides some convenience exception handler implementations

Field Summary

Fields

Modifier and Type	Field	Description
private List<TypeSolver>	elements
private Predicate<Exception>	exceptionHandler	A predicate which determines what to do if an exception is raised during the parsing process.
private TypeSolver	parent
private final Cache<String, SymbolReference<ResolvedReferenceTypeDeclaration>>	typeCache

Fields inherited from interface TypeSolver

JAVA_LANG_OBJECT, JAVA_LANG_RECORD

Constructor Summary

Constructors

Constructor	Description
CombinedTypeSolver(TypeSolver... elements)
CombinedTypeSolver(Iterable<TypeSolver> elements)
CombinedTypeSolver(Predicate<Exception> exceptionHandler, TypeSolver... elements)
CombinedTypeSolver(Predicate<Exception> exceptionHandler, Iterable<TypeSolver> elements)
CombinedTypeSolver(Predicate<Exception> exceptionHandler, Iterable<TypeSolver> elements, Cache<String, SymbolReference<ResolvedReferenceTypeDeclaration>> typeCache)	Create a new instance of CombinedTypeSolver with a custom symbol cache.

Method Summary

Modifier and Type	Method	Description
void	add(TypeSolver typeSolver)	Append a type solver to the current solver.
void	add(TypeSolver typeSolver, boolean resetCache)	Append a type solver to the current solver.
TypeSolver	getParent()	Parent of the this TypeSolver.
void	setExceptionHandler(Predicate<Exception> exceptionHandler)
void	setParent(TypeSolver parent)	Set the parent of this TypeSolver.
ResolvedReferenceTypeDeclaration	solveType(String name)	Solve the given type.
SymbolReference<ResolvedReferenceTypeDeclaration>	tryToSolveType(String name)	Try to solve the type with the given name.

Methods inherited from class Object

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

Methods inherited from interface TypeSolver

getRoot, getSolvedJavaLangObject, getSolvedJavaLangRecord, hasType

Field Details

typeCache

private final Cache<String, SymbolReference<ResolvedReferenceTypeDeclaration>> typeCache

parent

private TypeSolver parent

elements

private List<TypeSolver> elements

exceptionHandler

private Predicate<Exception> exceptionHandler

A predicate which determines what to do if an exception is raised during the parsing process. If it returns true the exception will be ignored, and solving will continue using the next solver in line. If it returns false the exception will be thrown, stopping the solving process. Main use case for this is to circumvent bugs or missing functionality in some type solvers. If for example solver A has a bug resulting in a NullPointerException, you could use a whitelist to ignore that type of exception. A secondary solver would then be able to step in when such an error occurs.

See Also:

• CombinedTypeSolver(Predicate, TypeSolver...)
• setExceptionHandler(Predicate)

Constructor Details

CombinedTypeSolver

public CombinedTypeSolver(TypeSolver... elements)

CombinedTypeSolver

public CombinedTypeSolver(Predicate<Exception> exceptionHandler,
 TypeSolver... elements)

CombinedTypeSolver

public CombinedTypeSolver(Iterable<TypeSolver> elements)

CombinedTypeSolver

public CombinedTypeSolver(Predicate<Exception> exceptionHandler,
 Iterable<TypeSolver> elements)

See Also:

• exceptionHandler

CombinedTypeSolver

public CombinedTypeSolver(Predicate<Exception> exceptionHandler,
 Iterable<TypeSolver> elements,
 Cache<String, SymbolReference<ResolvedReferenceTypeDeclaration>> typeCache)

Create a new instance of CombinedTypeSolver with a custom symbol cache.

Parameters:

exceptionHandler - How exception should be handled.

elements - The list of elements to include by default.

typeCache - The cache to be used to store symbols.

See Also:

• exceptionHandler

Method Details

setExceptionHandler

public void setExceptionHandler(Predicate<Exception> exceptionHandler)

See Also:

• exceptionHandler

getParent

public TypeSolver getParent()

Description copied from interface: TypeSolver

Parent of the this TypeSolver. This can return null.

Specified by:

getParent in interface TypeSolver

setParent

public void setParent(TypeSolver parent)

Description copied from interface: TypeSolver

Set the parent of this TypeSolver.

Specified by:

setParent in interface TypeSolver

add

public void add(TypeSolver typeSolver,
 boolean resetCache)

Append a type solver to the current solver.

Parameters:

typeSolver - The type solver to be appended.

resetCache - If should reset the cache when the solver is inserted.

add

public void add(TypeSolver typeSolver)

Append a type solver to the current solver.
By default the cached values will be removed.

Parameters:

typeSolver - The type solver to be appended.

tryToSolveType

public SymbolReference<ResolvedReferenceTypeDeclaration> tryToSolveType(String name)

Description copied from interface: TypeSolver

Try to solve the type with the given name. It always return a SymbolReference which can be solved or unsolved.

Specified by:

tryToSolveType in interface TypeSolver

solveType

public ResolvedReferenceTypeDeclaration solveType(String name)
                                           throws UnsolvedSymbolException

Description copied from interface: TypeSolver

Solve the given type. Either the type is found and returned or an UnsolvedSymbolException is thrown.

Specified by:

solveType in interface TypeSolver

Throws:

UnsolvedSymbolException