OpenJDK 27 · sun.reflect.generics.reflectiveObjects.WildcardTypeImpl

Modifier and Type	Field and Description
private volatile Object[]	lowerBounds The lower bounds.
private volatile Object[]	upperBounds The upper bounds.

Access	Constructor and Description
private	WildcardTypeImpl(FieldTypeSignature[] ubs, FieldTypeSignature[] lbs, GenericsFactory f)

Method Summary

Modifier and Type	Method and Description
public boolean	equals(Object o) Overrides java.lang.Object.equals. Indicates whether some other object is "equal to" this one.
public Type[]	Returns: an array of Types representing the lower bound(s) of this type variable getLowerBounds() Implements java.lang.reflect.WildcardType.getLowerBounds. Returns an array of `Type` objects representing the lower bound(s) of this type variable.
public Type[]	Returns: an array of Types representing the upper bound(s) of this type variable getUpperBounds() Implements java.lang.reflect.WildcardType.getUpperBounds. Returns an array of `Type` objects representing the upper bound(s) of this type variable.
public int	hashCode() Overrides java.lang.Object.hashCode. Returns a hash code value for this object.
public static WildcardTypeImpl	Returns: a wild card type with the requested bounds and factory make(FieldTypeSignature[] - an array of ASTs representing the upper bounds for the type variable to be created ubs, FieldTypeSignature[] - an array of ASTs representing the lower bounds for the type variable to be created lbs, GenericsFactory - a factory that can be used to manufacture reflective objects that represent the bounds of this wildcard type f) Factory method.
public String	toString() Overrides java.lang.Object.toString. Returns a string representation of the object.

Inherited from sun.reflect.generics.reflectiveObjects.LazyReflectiveObjectGenerator:: getReifier reifyBounds

lowerBounds	back to summary
private volatile Object[] lowerBounds The lower bounds. Lazily converted from FieldTypeSignature[] to Type[].

upperBounds	back to summary
private volatile Object[] upperBounds The upper bounds. Lazily converted from FieldTypeSignature[] to Type[].

WildcardTypeImpl	back to summary
private WildcardTypeImpl(FieldTypeSignature[] ubs, FieldTypeSignature[] lbs, GenericsFactory f)

Method Detail

equals back to summary

equals	back to summary
public boolean equals(Object o) Overrides java.lang.Object.equals. Doc from java.lang.Object.equals. Indicates whether some other object is "equal to" this one. The `equals` method implements an equivalence relation on non-null object references: It is reflexive: for any non-null reference value `x`, `x.equals(x)` should return `true`. It is symmetric: for any non-null reference values `x` and `y`, `x.equals(y)` should return `true` if and only if `y.equals(x)` returns `true`. It is transitive: for any non-null reference values `x`, `y`, and `z`, if `x.equals(y)` returns `true` and `y.equals(z)` returns `true`, then `x.equals(z)` should return `true`. It is consistent: for any non-null reference values `x` and `y`, multiple invocations of `x.equals(y)` consistently return `true` or consistently return `false`, provided no information used in `equals` comparisons on the objects is modified. For any non-null reference value `x`, `x.equals(null)` should return `false`. An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes. Annotations @Override

public boolean equals(Object o)

Overrides java.lang.Object.equals.

Doc from java.lang.Object.equals.

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

It is reflexive: for any non-null reference value x, x.equals(x) should return true.
It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
For any non-null reference value x, x.equals(null) should return false.

An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.

Annotations

@Override

getLowerBounds back to summary

getLowerBounds	back to summary
public Type[] getLowerBounds() Implements java.lang.reflect.WildcardType.getLowerBounds. Returns an array of `Type` objects representing the lower bound(s) of this type variable. Note that if no lower bound is explicitly declared, the lower bound is the type of `null`. In this case, a zero length array is returned. For each lower bound B : if B is a parameterized type or a type variable, it is created, (see `ParameterizedType` for the details of the creation process for parameterized types). Otherwise, B is resolved. Returns:Type[] an array of Types representing the lower bound(s) of this type variable Exceptions TypeNotPresentException: if any of the bounds refers to a non-existent type declaration MalformedParameterizedTypeException: if any of the bounds refer to a parameterized type that cannot be instantiated for any reason

public Type[] getLowerBounds()

Implements java.lang.reflect.WildcardType.getLowerBounds.

Returns an array of Type objects representing the lower bound(s) of this type variable. Note that if no lower bound is explicitly declared, the lower bound is the type of null. In this case, a zero length array is returned.

For each lower bound B :

if B is a parameterized type or a type variable, it is created, (see ParameterizedType for the details of the creation process for parameterized types).
Otherwise, B is resolved.

Returns:Type[]

an array of Types representing the lower bound(s) of this type variable

Exceptions

TypeNotPresentException:: if any of the bounds refers to a non-existent type declaration
MalformedParameterizedTypeException:: if any of the bounds refer to a parameterized type that cannot be instantiated for any reason

getUpperBounds back to summary

getUpperBounds	back to summary
public Type[] getUpperBounds() Implements java.lang.reflect.WildcardType.getUpperBounds. Returns an array of `Type` objects representing the upper bound(s) of this type variable. Note that if no upper bound is explicitly declared, the upper bound is `Object`. For each upper bound B : if B is a parameterized type or a type variable, it is created, (see `ParameterizedType` for the details of the creation process for parameterized types). Otherwise, B is resolved. Returns:Type[] an array of Types representing the upper bound(s) of this type variable Exceptions TypeNotPresentException: if any of the bounds refers to a non-existent type declaration MalformedParameterizedTypeException: if any of the bounds refer to a parameterized type that cannot be instantiated for any reason

public Type[] getUpperBounds()

Implements java.lang.reflect.WildcardType.getUpperBounds.

Returns an array of Type objects representing the upper bound(s) of this type variable. Note that if no upper bound is explicitly declared, the upper bound is Object.

For each upper bound B :

if B is a parameterized type or a type variable, it is created, (see ParameterizedType for the details of the creation process for parameterized types).
Otherwise, B is resolved.

Returns:Type[]

an array of Types representing the upper bound(s) of this type variable

Exceptions

TypeNotPresentException:: if any of the bounds refers to a non-existent type declaration
MalformedParameterizedTypeException:: if any of the bounds refer to a parameterized type that cannot be instantiated for any reason

hashCode back to summary

hashCode	back to summary
public int hashCode() Overrides java.lang.Object.hashCode. Doc from java.lang.Object.hashCode. Returns a hash code value for this object. This method is supported for the benefit of hash tables such as those provided by `java.util.HashMap`. The general contract of `hashCode` is: Whenever it is invoked on the same object more than once during an execution of a Java application, the `hashCode` method must consistently return the same integer, provided no information used in `equals` comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application. If two objects are equal according to the `equals` method, then calling the `hashCode` method on each of the two objects must produce the same integer result. It is not required that if two objects are unequal according to the `equals` method, then calling the `hashCode` method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables. Annotations @Override

public int hashCode()

Overrides java.lang.Object.hashCode.

Doc from java.lang.Object.hashCode.

Returns a hash code value for this object. This method is supported for the benefit of hash tables such as those provided by java.util.HashMap.

The general contract of hashCode is:

Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
If two objects are equal according to the equals method, then calling the hashCode method on each of the two objects must produce the same integer result.
It is not required that if two objects are unequal according to the equals method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.

Annotations

@Override

make	back to summary
public static WildcardTypeImpl make(FieldTypeSignature[] ubs, FieldTypeSignature[] lbs, GenericsFactory f) Factory method. Parameters ubs:FieldTypeSignature[] - an array of ASTs representing the upper bounds for the type variable to be created lbs:FieldTypeSignature[] - an array of ASTs representing the lower bounds for the type variable to be created f:GenericsFactory - a factory that can be used to manufacture reflective objects that represent the bounds of this wildcard type Returns:WildcardTypeImpl a wild card type with the requested bounds and factory

make

back to summary

public static WildcardTypeImpl make(FieldTypeSignature[] ubs, FieldTypeSignature[] lbs, GenericsFactory f)

Factory method.

Parameters

ubs:FieldTypeSignature[]: - an array of ASTs representing the upper bounds for the type variable to be created
lbs:FieldTypeSignature[]: - an array of ASTs representing the lower bounds for the type variable to be created
f:GenericsFactory: - a factory that can be used to manufacture reflective objects that represent the bounds of this wildcard type

Returns:WildcardTypeImpl

a wild card type with the requested bounds and factory

toString back to summary

toString	back to summary
public String toString() Overrides java.lang.Object.toString. Doc from java.lang.Object.toString. Returns a string representation of the object. Satisfying this method's contract implies a non-`null` result must be returned.

public String toString()

Overrides java.lang.Object.toString.

Doc from java.lang.Object.toString.

Returns a string representation of the object. Satisfying this method's contract implies a non-null result must be returned.

public Class WildcardTypeImpl

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