OpenJDK 27 · jdk.dynalink.beans.SingleDynamicMethod · APIdia, the JavaDoc alternative

Modifier and Type	Field and Description
private static final MethodHandle	CAN_CONVERT_TO

Access	Constructor and Description
pack-priv	SingleDynamicMethod(final String name)

Method Summary

Modifier and Type	Method and Description
private static boolean	canConvertTo(final LinkerServices linkerServices, final Class<?> to, final Object obj)
pack-priv static MethodHandle	Returns: a collecting method handle collectArguments(final MethodHandle the original method handle target, final int the total number of arguments in the new method handle parameterCount) Creates a method handle out of the original target that will collect the varargs for the exact component type of the varArg array.
pack-priv boolean	contains(final SingleDynamicMethod method) Implements abstract jdk.dynalink.beans.DynamicMethod.contains. True if this dynamic method already contains a method with an identical signature as the passed in method.
private static MethodHandle	createConvertingInvocation(final MethodHandle sizedMethod, final LinkerServices linkerServices, final MethodType callSiteType)
pack-priv MethodHandle	getInvocation(final CallSiteDescriptor callSiteDescriptor, final LinkerServices linkerServices) Implements abstract jdk.dynalink.beans.DynamicMethod.getInvocation. Creates an invocation for the dynamic method.
pack-priv static MethodHandle	Returns: the adapted method handle. getInvocation(final MethodHandle the method handle to adapt target, final MethodType the type of the call site callSiteType, final LinkerServices the linker services used for type conversions linkerServices) Given a method handle and a call site type, adapts the method handle to the call site type.
pack-priv SingleDynamicMethod	getMethodForExactParamTypes(final String paramTypes) Implements abstract jdk.dynalink.beans.DynamicMethod.getMethodForExactParamTypes. Returns a single dynamic method representing a single underlying Java method (possibly selected among several overloads) with formal parameter types exactly matching the passed signature.
pack-priv static String	getMethodNameWithSignature(final MethodType type, final String methodName, final boolean withReturnType)
pack-priv abstract MethodType	Returns: this method's native type. getMethodType() Returns this method's native type.
pack-priv abstract MethodHandle	Returns: the handle to this method's target method. getTarget(CallSiteDescriptor the call site descriptor to use. desc) Given a specified call site descriptor, returns a method handle to this method's target.
pack-priv abstract boolean	Returns: true if this method is variable arity. isVarArgs() Returns true if this method is variable arity.
private static boolean	typeMatchesDescription(final String paramTypes, final MethodType type)
private static boolean	typeNameMatches(final String typeName, final Class<?> type)

Inherited from jdk.dynalink.beans.DynamicMethod:: getClassAndMethodName getName isConstructor toString

CAN_CONVERT_TO	back to summary
private static final MethodHandle CAN_CONVERT_TO

SingleDynamicMethod	back to summary
pack-priv SingleDynamicMethod(final String name)

Method Detail

canConvertTo	back to summary
private static boolean canConvertTo(final LinkerServices linkerServices, final Class<?> to, final Object obj) Annotations @SuppressWarnings:unused

collectArguments	back to summary
pack-priv static MethodHandle collectArguments(final MethodHandle target, final int parameterCount) Creates a method handle out of the original target that will collect the varargs for the exact component type of the varArg array. Note that this will nicely trigger language-specific type converters for exactly those varargs for which it is necessary when later passed to linkerServices.convertArguments(). Parameters target:MethodHandle the original method handle parameterCount:int the total number of arguments in the new method handle Returns:MethodHandle a collecting method handle

collectArguments

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pack-priv static MethodHandle collectArguments(final MethodHandle target, final int parameterCount)

Creates a method handle out of the original target that will collect the varargs for the exact component type of the varArg array. Note that this will nicely trigger language-specific type converters for exactly those varargs for which it is necessary when later passed to linkerServices.convertArguments().

Parameters

target:MethodHandle: the original method handle
parameterCount:int: the total number of arguments in the new method handle

Returns:MethodHandle

a collecting method handle

contains	back to summary
pack-priv boolean contains(final SingleDynamicMethod method) Implements abstract jdk.dynalink.beans.DynamicMethod.contains. Doc from jdk.dynalink.beans.DynamicMethod.contains. True if this dynamic method already contains a method with an identical signature as the passed in method. Annotations @Override

contains

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pack-priv boolean contains(final SingleDynamicMethod method)

Implements abstract jdk.dynalink.beans.DynamicMethod.contains.

Doc from jdk.dynalink.beans.DynamicMethod.contains.

True if this dynamic method already contains a method with an identical signature as the passed in method.

Annotations

@Override

createConvertingInvocation	back to summary
private static MethodHandle createConvertingInvocation(final MethodHandle sizedMethod, final LinkerServices linkerServices, final MethodType callSiteType)

getInvocation	back to summary
pack-priv MethodHandle getInvocation(final CallSiteDescriptor callSiteDescriptor, final LinkerServices linkerServices) Implements abstract jdk.dynalink.beans.DynamicMethod.getInvocation. Doc from jdk.dynalink.beans.DynamicMethod.getInvocation. Creates an invocation for the dynamic method. If the method is overloaded, it will perform overloaded method resolution based on the specified method type. The resulting resolution can either identify a single method to be invoked among the overloads, or it can identify multiple ones. In the latter case, the returned method handle will perform further overload resolution among these candidates at every invocation. If the method to be invoked is a variable arguments (vararg) method, it will pack the extra arguments in an array before the invocation of the underlying method if it is not already done. Annotations @Override

getInvocation

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pack-priv MethodHandle getInvocation(final CallSiteDescriptor callSiteDescriptor, final LinkerServices linkerServices)

Implements abstract jdk.dynalink.beans.DynamicMethod.getInvocation.

Doc from jdk.dynalink.beans.DynamicMethod.getInvocation.

Creates an invocation for the dynamic method. If the method is overloaded, it will perform overloaded method resolution based on the specified method type. The resulting resolution can either identify a single method to be invoked among the overloads, or it can identify multiple ones. In the latter case, the returned method handle will perform further overload resolution among these candidates at every invocation. If the method to be invoked is a variable arguments (vararg) method, it will pack the extra arguments in an array before the invocation of the underlying method if it is not already done.

Annotations

@Override

getInvocation back to summary

getInvocation	back to summary
pack-priv static MethodHandle getInvocation(final MethodHandle target, final MethodType callSiteType, final LinkerServices linkerServices) Given a method handle and a call site type, adapts the method handle to the call site type. Performs type conversions as needed using the specified linker services, and in case that the method handle is a vararg collector, matches it to the arity of the call site. The type of the return value is only changed if it can be converted using a conversion that loses neither precision nor magnitude, see `LinkerServices#asTypeLosslessReturn(MethodHandle, MethodType)`. Parameters target:MethodHandle the method handle to adapt callSiteType:MethodType the type of the call site linkerServices:LinkerServices the linker services used for type conversions Returns:MethodHandle the adapted method handle.

pack-priv static MethodHandle getInvocation(final MethodHandle target, final MethodType callSiteType, final LinkerServices linkerServices)

Given a method handle and a call site type, adapts the method handle to the call site type. Performs type conversions as needed using the specified linker services, and in case that the method handle is a vararg collector, matches it to the arity of the call site. The type of the return value is only changed if it can be converted using a conversion that loses neither precision nor magnitude, see LinkerServices#asTypeLosslessReturn(MethodHandle, MethodType).

Parameters

target:MethodHandle: the method handle to adapt
callSiteType:MethodType: the type of the call site
linkerServices:LinkerServices: the linker services used for type conversions

Returns:MethodHandle

the adapted method handle.

getMethodForExactParamTypes	back to summary
pack-priv SingleDynamicMethod getMethodForExactParamTypes(final String paramTypes) Implements abstract jdk.dynalink.beans.DynamicMethod.getMethodForExactParamTypes. Doc from jdk.dynalink.beans.DynamicMethod.getMethodForExactParamTypes. Returns a single dynamic method representing a single underlying Java method (possibly selected among several overloads) with formal parameter types exactly matching the passed signature. Annotations @Override

getMethodForExactParamTypes

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pack-priv SingleDynamicMethod getMethodForExactParamTypes(final String paramTypes)

Implements abstract jdk.dynalink.beans.DynamicMethod.getMethodForExactParamTypes.

Doc from jdk.dynalink.beans.DynamicMethod.getMethodForExactParamTypes.

Returns a single dynamic method representing a single underlying Java method (possibly selected among several overloads) with formal parameter types exactly matching the passed signature.

Annotations

@Override

getMethodNameWithSignature	back to summary
pack-priv static String getMethodNameWithSignature(final MethodType type, final String methodName, final boolean withReturnType)

getMethodType	back to summary
pack-priv abstract MethodType getMethodType() Returns this method's native type. Returns:MethodType this method's native type.

getMethodType

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pack-priv abstract MethodType getMethodType()

Returns this method's native type.

Returns:MethodType: this method's native type.

getTarget	back to summary
pack-priv abstract MethodHandle getTarget(CallSiteDescriptor desc) Given a specified call site descriptor, returns a method handle to this method's target. The target should only depend on the descriptor's lookup, and it should only retrieve it (as a privileged operation) when it is absolutely needed. Parameters desc:CallSiteDescriptor the call site descriptor to use. Returns:MethodHandle the handle to this method's target method.

getTarget

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pack-priv abstract MethodHandle getTarget(CallSiteDescriptor desc)

Given a specified call site descriptor, returns a method handle to this method's target. The target should only depend on the descriptor's lookup, and it should only retrieve it (as a privileged operation) when it is absolutely needed.

Parameters

desc:CallSiteDescriptor: the call site descriptor to use.

Returns:MethodHandle

the handle to this method's target method.

isVarArgs	back to summary
pack-priv abstract boolean isVarArgs() Returns true if this method is variable arity. Returns:boolean true if this method is variable arity.

isVarArgs

back to summary

pack-priv abstract boolean isVarArgs()

Returns true if this method is variable arity.

Returns:boolean: true if this method is variable arity.

typeMatchesDescription	back to summary
private static boolean typeMatchesDescription(final String paramTypes, final MethodType type)

typeNameMatches	back to summary
private static boolean typeNameMatches(final String typeName, final Class<?> type)

pack-priv abstract Class SingleDynamicMethod

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Field Detail

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