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jakarta.el

public Class MethodInfo

extends Object
Class Inheritance
Imports
java.util.Arrays

Holds information about a method that a MethodExpression evaluated to. Two MethodInfo instances are considered to be equal if they reference methods with the same name, return types and parameter types.
Since
Jakarta Server Pages 2.1

Field Summary

Modifier and TypeField and Description
private String
private Class<?>[]
private Class<?>

Constructor Summary

AccessConstructor and Description
public
MethodInfo(String
The name of the method
name
,
Class<?>
The return type of the method
returnType
,
Class<?>[]
The types of each of the method's parameters
paramTypes
)

Creates a new instance of MethodInfo with the given information.

Method Summary

Modifier and TypeMethod and Description
public boolean
equals(Object
the reference object with which to compare.
obj
)

Overrides java.lang.Object.equals.

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

public String

Returns:

the name of the method
getName
()

Returns the name of the method

public Class<?>[]

Returns:

the parameter types of the method
getParamTypes
()

Returns the parameter types of the method

public Class<?>

Returns:

the return type of the method
getReturnType
()

Returns the return type of the method

public int
hashCode()

Overrides java.lang.Object.hashCode.

Returns a hash code value for this object.

Inherited from java.lang.Object:
clonefinalizegetClassnotifynotifyAlltoStringwaitwaitwait

Field Detail

nameback to summary
private String name
paramTypesback to summary
private Class<?>[] paramTypes
returnTypeback to summary
private Class<?> returnType

Constructor Detail

MethodInfoback to summary
public MethodInfo(String name, Class<?> returnType, Class<?>[] paramTypes)

Creates a new instance of MethodInfo with the given information.

Parameters
name:String

The name of the method

returnType:Class<?>

The return type of the method

paramTypes:Class<?>[]

The types of each of the method's parameters

Method Detail

equalsback to summary
public boolean equals(Object obj)

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.

Parameters
obj:Object

the reference object with which to compare.

Returns:boolean

true if this object is the same as the obj argument; false otherwise.

Annotations
@Override
getNameback to summary
public String getName()

Returns the name of the method

Returns:String

the name of the method

getParamTypesback to summary
public Class<?>[] getParamTypes()

Returns the parameter types of the method

Returns:Class<?>[]

the parameter types of the method

getReturnTypeback to summary
public Class<?> getReturnType()

Returns the return type of the method

Returns:Class<?>

the return type of the method

hashCodeback 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.
Returns:int

a hash code value for this object

Annotations
@Override