java.lang.Object
- com.ibm.wala.types.Descriptor

```
public final class Descriptor
extends Object
```
A method descriptor; something like: (Ljava/langString;)Ljava/lang/Class; Descriptors are canonical

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`equals(Object obj)`
`static Descriptor`	`findOrCreate(Language l, ImmutableByteArray b)`
`static Descriptor`	`findOrCreate(TypeName[] parameters, TypeName returnType)`
`static Descriptor`	`findOrCreate(ImmutableByteArray b)`
`static Descriptor`	`findOrCreateUTF8(Language l, String s)`
`static Descriptor`	`findOrCreateUTF8(String s)`
`int`	`getNumberOfParameters()`
`TypeName[]`	`getParameters()`
`TypeName`	`getReturnType()`
`int`	`hashCode()`
`String`	`toString()`
`String`	`toUnicodeString()`

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Method Detail

findOrCreate

public static Descriptor findOrCreate(TypeName[] parameters,
                                      TypeName returnType)

Parameters:: parameters - the parameters for a descriptor; returnType - the return type
Returns:: the canonical representative for this descriptor value

findOrCreate

public static Descriptor findOrCreate(Language l,
                                      ImmutableByteArray b)
                               throws IllegalArgumentException

Parameters:: b - a byte array holding the string representation of this descriptor
Returns:: the canonical representative for this descriptor value
Throws:: IllegalArgumentException

findOrCreate

public static Descriptor findOrCreate(ImmutableByteArray b)
                               throws IllegalArgumentException

Throws:: IllegalArgumentException

findOrCreateUTF8
```
public static Descriptor findOrCreateUTF8(String s)
                                   throws IllegalArgumentException
```
Parameters:

s - string representation of this descriptor

Returns:

the canonical representative for this descriptor value

Throws:

IllegalArgumentException

findOrCreateUTF8

public static Descriptor findOrCreateUTF8(Language l,
                                          String s)
                                   throws IllegalArgumentException

Parameters:: s - string representation of this descriptor
Returns:: the canonical representative for this descriptor value
Throws:: IllegalArgumentException

equals
```
public boolean equals(Object obj)
```
Overrides:

equals in class Object

hashCode
```
public int hashCode()
```
Overrides:

hashCode in class Object

toString
```
public String toString()
```
Overrides:

toString in class Object

toUnicodeString
```
public String toUnicodeString()
```
Returns:

a unicode string representation of this descriptor

getReturnType
```
public TypeName getReturnType()
```
Returns:

the name of the return type of this descriptor

getParameters
```
public TypeName[] getParameters()
```
Returns:

the type names for the parameters in this descriptor

getNumberOfParameters
```
public int getNumberOfParameters()
```
Returns:

number of parameters in this descriptor

Class Descriptor

Method Summary

Methods inherited from class java.lang.Object

Method Detail

findOrCreate

findOrCreate

findOrCreate

findOrCreateUTF8

findOrCreateUTF8

equals

hashCode

toString

toUnicodeString

getReturnType

getParameters

getNumberOfParameters