Package org.aspectj.org.eclipse.jdt.internal.core

Class SourceMethod

java.lang.Object

org.eclipse.core.runtime.PlatformObject

org.aspectj.org.eclipse.jdt.internal.core.JavaElement

org.aspectj.org.eclipse.jdt.internal.core.SourceRefElement

org.aspectj.org.eclipse.jdt.internal.core.Member

org.aspectj.org.eclipse.jdt.internal.core.NamedMember

org.aspectj.org.eclipse.jdt.internal.core.SourceMethod

All Implemented Interfaces:

IAnnotatable, IJavaElement, IMember, IMethod, IParent, ISourceManipulation, ISourceReference, org.eclipse.core.runtime.IAdaptable

Direct Known Subclasses:

LambdaMethod, ResolvedSourceMethod

public class SourceMethod
extends NamedMember
implements IMethod

See Also:

• IMethod

Field Summary

Fields

Modifier and Type	Field	Description
protected String[]	parameterTypes	The parameter type signatures of the method - stored locally to perform equality test.

Fields inherited from class org.aspectj.org.eclipse.jdt.internal.core.NamedMember

name

Fields inherited from class org.aspectj.org.eclipse.jdt.internal.core.JavaElement

JEM_ANNOTATION, JEM_CLASSFILE, JEM_COMPILATIONUNIT, JEM_COUNT, JEM_DELIMITER_ESCAPE, JEM_ESCAPE, JEM_FIELD, JEM_IMPORTDECLARATION, JEM_INITIALIZER, JEM_JAVAPROJECT, JEM_LAMBDA_EXPRESSION, JEM_LAMBDA_METHOD, JEM_LOCALVARIABLE, JEM_METHOD, JEM_MODULAR_CLASSFILE, JEM_MODULE, JEM_PACKAGEDECLARATION, JEM_PACKAGEFRAGMENT, JEM_PACKAGEFRAGMENTROOT, JEM_STRING, JEM_TYPE, JEM_TYPE_PARAMETER, NO_ELEMENTS, NO_INFO, NO_STRINGS

Fields inherited from interface org.aspectj.org.eclipse.jdt.core.IJavaElement

ANNOTATION, CLASS_FILE, COMPILATION_UNIT, FIELD, IMPORT_CONTAINER, IMPORT_DECLARATION, INITIALIZER, JAVA_MODEL, JAVA_MODULE, JAVA_PROJECT, LOCAL_VARIABLE, METHOD, PACKAGE_DECLARATION, PACKAGE_FRAGMENT, PACKAGE_FRAGMENT_ROOT, TYPE, TYPE_PARAMETER

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	SourceMethod(JavaElement parent, String name, String[] parameterTypes)
protected	SourceMethod(JavaElement parent, String name, String[] parameterTypes, int occurrenceCount)

Method Summary

Modifier and Type	Method	Description
protected int	calculateHashCode()
protected void	closing(Object info)	This element is being closed.
boolean	equals(Object o)	Returns true if this handle represents the same Java element as the given handle.
IMemberValuePair	getDefaultValue()	Returns a member value pair representing the default value of this method if any, or null if this method's parent is not an annotation type, or else if this method does not have a default value.
int	getElementType()	Returns this element's kind encoded as an integer.
String[]	getExceptionTypes()	Returns the type signatures of the exceptions this method throws, in the order declared in the source.
protected void	getHandleMemento(StringBuilder buff)
protected char	getHandleMementoDelimiter()	Returns the char that marks the start of this handles contribution to a memento.
String	getKey()	Returns the binding key for this method only if the given method is resolved.
int	getNumberOfParameters()	Returns the number of parameters of this method.
String[]	getParameterNames()	Returns the names of parameters in this method.
ILocalVariable[]	getParameters()	Returns the parameters of this method.
String[]	getParameterTypes()	Returns the type signatures for the parameters of this method.
JavaElement	getPrimaryElement(boolean checkOwner)
String[]	getRawParameterNames()	Returns the names of parameters in this method.
String	getReturnType()	Returns the type signature of the return value of this method.
String	getSignature()	Returns the signature of this method.
ITypeParameter	getTypeParameter(String typeParameterName)	Returns the type parameter declared in this method with the given name.
ITypeParameter[]	getTypeParameters()	Returns the formal type parameters for this method.
String[]	getTypeParameterSignatures()	Deprecated.
boolean	isConstructor()	Returns whether this method is a constructor.
boolean	isLambdaMethod()	Returns whether this method represents a lambda expression.
boolean	isMainMethod()	Returns whether this method is a main method.
boolean	isMainMethodCandidate()	Returns whether this method is a main method candidate.
boolean	isResolved()	Returns whether this method represents a resolved method.
boolean	isSimilar(IMethod method)	Returns whether this method is similar to the given method.
String	readableName()
JavaElement	resolved(Binding binding)
protected void	toStringInfo(int tab, StringBuilder buffer, Object info, boolean showResolvedInfo)	for debugging only
protected void	toStringName(StringBuilder buffer)	Debugging purposes
protected void	toStringName(StringBuilder buffer, int flags)

Methods inherited from class org.aspectj.org.eclipse.jdt.internal.core.NamedMember

getElementName, getFullyQualifiedName, getFullyQualifiedParameterizedName, getKey, getKey, getKey, getKey, getOccurrenceCountSignature, getPackageFragment, getTypeQualifiedName, resolveType, resolveType

Methods inherited from class org.aspectj.org.eclipse.jdt.internal.core.Member

areSimilarMethods, convertConstant, findMethods, getCategories, getClassFile, getDeclaringType, getFlags, getHandleFromMemento, getJavadocRange, getNameRange, getOuterMostLocalContext, getType, getTypeRoot, isBinary, isMainMethod, isMainMethodCandidate, isReadOnly

Methods inherited from class org.aspectj.org.eclipse.jdt.internal.core.SourceRefElement

copy, createElementInfo, delete, findNode, generateInfos, getAnnotation, getAnnotations, getCompilationUnit, getCorrespondingResource, getHandleUpdatingCountFromMemento, getOccurrenceCount, getOpenableParent, getPath, getSource, getSourceRange, getUnderlyingResource, hasChildren, incOccurrenceCount, isStructureKnown, move, rename, resource, setOccurrenceCount

Methods inherited from class org.aspectj.org.eclipse.jdt.internal.core.JavaElement

appendEscapedDelimiter, close, escapeMementoName, exists, getAncestor, getAttachedJavadoc, getChildren, getChildrenOfType, getElementInfo, getElementInfo, getHandleFromMemento, getHandleIdentifier, getHandleMemento, getJavadocBaseLocation, getJavaModel, getJavaProject, getLibraryJavadocLocation, getOpenable, getParent, getPrimaryElement, getResource, getSchedulingRule, getSourceElementAt, getSourceMapper, getURLContents, hashCode, isAncestorOf, newDoesNotExistStatus, newJavaModelException, newNotPresentException, openWhenClosed, resetHashCode, tabString, toDebugString, toString, toString, toStringAncestors, toStringChildren, toStringInfo, toStringWithAncestors, toStringWithAncestors, unresolved, validateAndCache

Methods inherited from class org.eclipse.core.runtime.PlatformObject

getAdapter

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.eclipse.core.runtime.IAdaptable

getAdapter

Methods inherited from interface org.aspectj.org.eclipse.jdt.core.IAnnotatable

getAnnotation, getAnnotations

Methods inherited from interface org.aspectj.org.eclipse.jdt.core.IJavaElement

exists, getAncestor, getAttachedJavadoc, getCorrespondingResource, getHandleIdentifier, getJavaModel, getJavaProject, getOpenable, getParent, getPath, getPrimaryElement, getResource, getSchedulingRule, getUnderlyingResource, isReadOnly, isStructureKnown

Methods inherited from interface org.aspectj.org.eclipse.jdt.core.IMember

getCategories, getClassFile, getCompilationUnit, getDeclaringType, getFlags, getJavadocRange, getOccurrenceCount, getType, getTypeRoot, isBinary

Methods inherited from interface org.aspectj.org.eclipse.jdt.core.IMethod

getElementName

Methods inherited from interface org.aspectj.org.eclipse.jdt.core.IParent

getChildren, hasChildren

Methods inherited from interface org.aspectj.org.eclipse.jdt.core.ISourceManipulation

copy, delete, move, rename

Methods inherited from interface org.aspectj.org.eclipse.jdt.core.ISourceReference

exists, getNameRange, getSource, getSourceRange

Field Details

parameterTypes

protected String[] parameterTypes

The parameter type signatures of the method - stored locally to perform equality test. null indicates no parameters.

Constructor Details

SourceMethod

protected SourceMethod(JavaElement parent,
 String name,
 String[] parameterTypes)

SourceMethod

protected SourceMethod(JavaElement parent,
 String name,
 String[] parameterTypes,
 int occurrenceCount)

Method Details

closing

protected void closing(Object info)
                throws JavaModelException

Description copied from class: SourceRefElement

This element is being closed. Do any necessary cleanup.

Overrides:

closing in class SourceRefElement

Throws:

JavaModelException

equals

public boolean equals(Object o)

Description copied from class: JavaElement

Returns true if this handle represents the same Java element as the given handle. By default, two handles represent the same element if they are identical or if they represent the same type of element, have equal names, parents, and occurrence counts.

If a subclass has other requirements for equality, this method must be overridden.

Overrides:

equals in class SourceRefElement

See Also:

• Object.equals(java.lang.Object)

calculateHashCode

protected int calculateHashCode()

Overrides:

calculateHashCode in class SourceRefElement

getDefaultValue

public IMemberValuePair getDefaultValue()
                                 throws JavaModelException

Description copied from interface: IMethod

Returns a member value pair representing the default value of this method if any, or null if this method's parent is not an annotation type, or else if this method does not have a default value.

Note that IMemberValuePair.getValue() might return null. Please see this method for more details.

Specified by:

getDefaultValue in interface IMethod

Returns:

a member pair value if any, or null if none

Throws:

JavaModelException - if this element does not exist or if an exception occurs while accessing its corresponding resource.

getElementType

public int getElementType()

Description copied from interface: IJavaElement

Returns this element's kind encoded as an integer. This is a handle-only method.

Specified by:

getElementType in interface IJavaElement

Returns:

the kind of element; one of the constants declared in IJavaElement

See Also:

• IJavaElement

getExceptionTypes

public String[] getExceptionTypes()
                           throws JavaModelException

Description copied from interface: IMethod

Returns the type signatures of the exceptions this method throws, in the order declared in the source. Returns an empty array if this method throws no exceptions.

For example, a source method declaring "throws IOException", would return the array {"QIOException;"}.

The type signatures may be either unresolved (for source types) or resolved (for binary types), and either basic (for basic types) or rich (for parameterized types). See Signature for details.

Specified by:

getExceptionTypes in interface IMethod

Returns:

the type signatures of the exceptions this method throws, in the order declared in the source, an empty array if this method throws no exceptions

Throws:

JavaModelException - if this element does not exist or if an exception occurs while accessing its corresponding resource.

See Also:

• IMethod

getHandleMemento

protected void getHandleMemento(StringBuilder buff)

Overrides:

getHandleMemento in class SourceRefElement

See Also:

• JavaElement.getHandleMemento(StringBuilder)

getHandleMementoDelimiter

protected char getHandleMementoDelimiter()

Description copied from class: JavaElement

Returns the char that marks the start of this handles contribution to a memento.

Overrides:

getHandleMementoDelimiter in class Member

See Also:

• JavaElement.getHandleMemento()

getKey

public String getKey()

Description copied from interface: IMethod

Returns the binding key for this method only if the given method is resolved. A binding key is a key that uniquely identifies this method. It allows access to:

• generic info for parameterized methods
• the actual return type for references to Object.getClass()
• the actual parameter types and return type for references to signature polymorphic methods from class MethodHandle

If the given method is not resolved, the returned key is simply the java element's key.

Specified by:

getKey in interface IMethod

Returns:

the binding key for this method

See Also:

• invalid reference

  org.eclipse.jdt.core.dom.IBinding#getKey()

• BindingKey
• IMethod.isResolved()

getNumberOfParameters

public int getNumberOfParameters()

Description copied from interface: IMethod

Returns the number of parameters of this method. This is a handle-only method.

Specified by:

getNumberOfParameters in interface IMethod

Returns:

the number of parameters of this method

See Also:

• IMethod

getParameterNames

public String[] getParameterNames()
                           throws JavaModelException

Description copied from interface: IMethod

Returns the names of parameters in this method. For binary types, associated source or attached Javadoc are used to retrieve the names. If none can be retrieved, then these names are invented as "arg"+i, where i starts at 0. Returns an empty array if this method has no parameters.

For example, a method declared as public void foo(String text, int length) would return the array {"text","length"}.

Specified by:

getParameterNames in interface IMethod

Returns:

the names of parameters in this method, an empty array if this method has no parameters

Throws:

JavaModelException - if this element does not exist or if an exception occurs while accessing its corresponding resource.

See Also:

• IMethod

getParameterTypes

public String[] getParameterTypes()

Description copied from interface: IMethod

Returns the type signatures for the parameters of this method. Returns an empty array if this method has no parameters. This is a handle-only method.

For example, a source method declared as public void foo(String text, int length) would return the array {"QString;","I"}.

The type signatures may be either unresolved (for source types) or resolved (for binary types), and either basic (for basic types) or rich (for parameterized types). See Signature for details.

Specified by:

getParameterTypes in interface IMethod

Returns:

the type signatures for the parameters of this method, an empty array if this method has no parameters

See Also:

• IMethod

getTypeParameter

public ITypeParameter getTypeParameter(String typeParameterName)

Description copied from interface: IMethod

Returns the type parameter declared in this method with the given name. This is a handle-only method. The type parameter may or may not exist.

Specified by:

getTypeParameter in interface IMethod

Parameters:

typeParameterName - the given simple name

Returns:

the type parameter declared in this method with the given name

getTypeParameters

public ITypeParameter[] getTypeParameters()
                                   throws JavaModelException

Description copied from interface: IMethod

Returns the formal type parameters for this method. Returns an empty array if this method has no formal type parameters.

Specified by:

getTypeParameters in interface IMethod

Overrides:

getTypeParameters in class NamedMember

Returns:

the formal type parameters of this method, in the order declared in the source, an empty array if none

Throws:

JavaModelException - if this element does not exist or if an exception occurs while accessing its corresponding resource.

getParameters

public ILocalVariable[] getParameters()
                               throws JavaModelException

Description copied from interface: IMethod

Returns the parameters of this method.

An empty array is returned, if the method has no parameters.

For binary types, associated source is used to retrieve the name range, source range and the flags.

These local variables can be used to retrieve the parameter annotations.

Specified by:

getParameters in interface IMethod

Returns:

the parameters of this method

Throws:

JavaModelException - if this element does not exist or if an exception occurs while accessing its corresponding resource.

getTypeParameterSignatures

public String[] getTypeParameterSignatures()
                                    throws JavaModelException

Deprecated.

Description copied from interface: IMethod

Returns the formal type parameter signatures for this method. Returns an empty array if this method has no formal type parameters.

The formal type parameter signatures may be either unresolved (for source types) or resolved (for binary types). See Signature for details.

Specified by:

getTypeParameterSignatures in interface IMethod

Returns:

the formal type parameter signatures of this method, in the order declared in the source, an empty array if none

Throws:

JavaModelException - if this element does not exist or if an exception occurs while accessing its corresponding resource.

Since:

3.0

See Also:

• IMethod.getTypeParameterSignatures()

getPrimaryElement

public JavaElement getPrimaryElement(boolean checkOwner)

Overrides:

getPrimaryElement in class JavaElement

getRawParameterNames

public String[] getRawParameterNames()
                              throws JavaModelException

Description copied from interface: IMethod

Returns the names of parameters in this method. For binary types, these names are invented as "arg"+i, where i starts at 0 (even if source is associated with the binary or if Javdoc is attached to the binary). Returns an empty array if this method has no parameters.

For example, a method declared as public void foo(String text, int length) would return the array {"text","length"}. For the same method in a binary, this would return {"arg0", "arg1"}.

Specified by:

getRawParameterNames in interface IMethod

Returns:

the names of parameters in this method, an empty array if this method has no parameters

Throws:

JavaModelException - if this element does not exist or if an exception occurs while accessing its corresponding resource.

getReturnType

public String getReturnType()
                     throws JavaModelException

Description copied from interface: IMethod

Returns the type signature of the return value of this method. For constructors, this returns the signature for void.

For example, a source method declared as public String getName() would return "QString;".

The type signature may be either unresolved (for source types) or resolved (for binary types), and either basic (for basic types) or rich (for parameterized types). See Signature for details.

Specified by:

getReturnType in interface IMethod

Returns:

the type signature of the return value of this method, void for constructors

Throws:

JavaModelException - if this element does not exist or if an exception occurs while accessing its corresponding resource.

See Also:

• IMethod

getSignature

public String getSignature()
                    throws JavaModelException

Description copied from interface: IMethod

Returns the signature of this method. This includes the signatures for the parameter types and return type, but does not include the method name, exception types, or type parameters.

For example, a source method declared as public void foo(String text, int length) would return "(QString;I)V".

The type signatures embedded in the method signature may be either unresolved (for source types) or resolved (for binary types), and either basic (for basic types) or rich (for parameterized types). See Signature for details.

Specified by:

getSignature in interface IMethod

Returns:

the signature of this method

Throws:

JavaModelException - if this element does not exist or if an exception occurs while accessing its corresponding resource.

See Also:

• IMethod

isConstructor

public boolean isConstructor()
                      throws JavaModelException

Description copied from interface: IMethod

Returns whether this method is a constructor.

Specified by:

isConstructor in interface IMethod

Returns:

true if this method is a constructor, false otherwise

Throws:

JavaModelException - if this element does not exist or if an exception occurs while accessing its corresponding resource.

See Also:

• IMethod

isMainMethod

public boolean isMainMethod()
                     throws JavaModelException

Description copied from interface: IMethod

Returns whether this method is a main method. It is a main method if:

• its name is equal to "main"
• its return type is void
• it is static and public
• it defines one parameter whose type's simple name is String[]

Specified by:

isMainMethod in interface IMethod

Returns:

true if this method is a main method, false otherwise

Throws:

JavaModelException - if this element does not exist or if an exception occurs while accessing its corresponding resource.

See Also:

• IMethod.isMainMethod()

isMainMethodCandidate

public boolean isMainMethodCandidate()
                              throws JavaModelException

Description copied from interface: IMethod

Returns whether this method is a main method candidate. It is a main method if:

• its name is equal to "main"
• its return type is void
• it is static and public
• it defines one parameter whose type's simple name is String[]

Starting with Java 21 there is "preview feature" that allows instance main methods. It is a main method according to this JEP if:

• its name is equal to "main"
• its return type is void
• it is non-private
• it defines one parameter whose type's simple name is String[] or no parameter at all

Specified by:

isMainMethodCandidate in interface IMethod

Returns:

true if this method is a main method, false otherwise

Throws:

JavaModelException - if this element does not exist or if an exception occurs while accessing its corresponding resource.

isLambdaMethod

public boolean isLambdaMethod()

Description copied from interface: IMethod

Returns whether this method represents a lambda expression.

Specified by:

isLambdaMethod in interface IMethod

Returns:

true if this method represents a lambda expression, false otherwise.

See Also:

• IMethod.isLambdaMethod()

isResolved

public boolean isResolved()

Description copied from interface: IMethod

Returns whether this method represents a resolved method. If a method is resolved, its key contains resolved information.

Specified by:

isResolved in interface IMethod

Returns:

whether this method represents a resolved method.

isSimilar

public boolean isSimilar(IMethod method)

Description copied from interface: IMethod

Returns whether this method is similar to the given method. Two methods are similar if:

• their element names are equal
• they have the same number of parameters
• the simple names of their parameter types are equal

This is a handle-only method.

Specified by:

isSimilar in interface IMethod

Parameters:

method - the given method

Returns:

true if this method is similar to the given method.

See Also:

• IMethod.isSimilar(IMethod)

readableName

public String readableName()

Overrides:

readableName in class Member

resolved

public JavaElement resolved(Binding binding)

Overrides:

resolved in class JavaElement

toStringInfo

protected void toStringInfo(int tab,
 StringBuilder buffer,
 Object info,
 boolean showResolvedInfo)

for debugging only

Overrides:

toStringInfo in class JavaElement

Parameters:

showResolvedInfo - TODO

toStringName

protected void toStringName(StringBuilder buffer)

Description copied from class: JavaElement

Debugging purposes

Overrides:

toStringName in class SourceRefElement

toStringName

protected void toStringName(StringBuilder buffer,
 int flags)