Type (bcel 5.2 API)

java.lang.Object
- org.apache.bcel.generic.Type

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

BasicType, DOUBLE_Upper, LONG_Upper, ReferenceType, ReturnaddressType
```
public abstract class Type
extends Object
implements Serializable
```
Abstract super class for all possible java types, namely basic types such as int, object types like String and array types, e.g. int[]

Version:

$Id: Type.java 393344 2006-04-12 00:38:34Z tcurdt $

Author:

M. Dahm

See Also:
Serialized Form

Field Summary

Fields
Modifier and Type	Field and Description
`static BasicType`	`BOOLEAN`
`static BasicType`	`BYTE`
`static BasicType`	`CHAR`
`static ObjectType`	`CLASS`
`static BasicType`	`DOUBLE`
`static BasicType`	`FLOAT`
`static BasicType`	`INT`
`static BasicType`	`LONG`
`static Type[]`	`NO_ARGS`
`static ReferenceType`	`NULL`
`static ObjectType`	`OBJECT`
`static BasicType`	`SHORT`
`protected String`	`signature`
`static ObjectType`	`STRING`
`static ObjectType`	`STRINGBUFFER`
`static ObjectType`	`THROWABLE`
`protected byte`	`type`
`static Type`	`UNKNOWN`
`static BasicType`	`VOID` Predefined constants

Constructor Summary

Constructors
Modifier Constructor and Description

protected Type(byte t, String s)

Constructors
Modifier	Constructor and Description
`protected`	`Type(byte t, String s)`

Method Summary

Methods
Modifier and Type	Method and Description
`boolean`	`equals(Object o)`
`static Type[]`	`getArgumentTypes(String signature)` Convert arguments of a method (signature) to an array of Type objects.
`static String`	`getMethodSignature(Type return_type, Type[] arg_types)` Convert type to Java method signature, e.g.
`static Type`	`getReturnType(String signature)` Convert return value of a method (signature) to a Type object.
`String`	`getSignature()`
`static String`	`getSignature(Method meth)`
`int`	`getSize()`
`byte`	`getType()`
`static Type`	`getType(Class cl)` Convert runtime java.lang.Class to BCEL Type object.
`static Type`	`getType(String signature)` Convert signature to a Type object.
`static Type[]`	`getTypes(Class[] classes)` Convert runtime java.lang.Class[] to BCEL Type objects.
`int`	`hashCode()`
`String`	`toString()`

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

- Field Detail
  - type
```
protected byte type
```
  - signature
```
protected String signature
```
  - VOID
```
public static final BasicType VOID
```
    Predefined constants
  - BOOLEAN
```
public static final BasicType BOOLEAN
```
  - INT
```
public static final BasicType INT
```
  - SHORT
```
public static final BasicType SHORT
```
  - BYTE
```
public static final BasicType BYTE
```
  - LONG
```
public static final BasicType LONG
```
  - DOUBLE
```
public static final BasicType DOUBLE
```
  - FLOAT
```
public static final BasicType FLOAT
```
  - CHAR
```
public static final BasicType CHAR
```
  - OBJECT
```
public static final ObjectType OBJECT
```
  - CLASS
```
public static final ObjectType CLASS
```
  - STRING
```
public static final ObjectType STRING
```
  - STRINGBUFFER
```
public static final ObjectType STRINGBUFFER
```
  - THROWABLE
```
public static final ObjectType THROWABLE
```
  - NO_ARGS
```
public static final Type[] NO_ARGS
```
  - NULL
```
public static final ReferenceType NULL
```
  - UNKNOWN
```
public static final Type UNKNOWN
```
- Constructor Detail
  - Type
```
protected Type(byte t,
    String s)
```
- Method Detail
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object
    
    Returns:
    hashcode of Type
  - equals
```
public boolean equals(Object o)
```
    Overrides:
    
    equals in class Object
    
    Returns:
    whether the Types are equal
  - getSignature
```
public String getSignature()
```
    Returns:
    signature for given type.
  - getType
```
public byte getType()
```
    Returns:
    type as defined in Constants
  - getSize
```
public int getSize()
```
    Returns:
    stack size of this type (2 for long and double, 0 for void, 1 otherwise)
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object
    
    Returns:
    Type string, e.g. `int[]'
  - getMethodSignature
```
public static String getMethodSignature(Type return_type,
                        Type[] arg_types)
```
    Convert type to Java method signature, e.g. int[] f(java.lang.String x) becomes (Ljava/lang/String;)[I
    
    Parameters:
    return_type - what the method returns
    arg_types - what are the argument types
    
    Returns:
    method signature for given type(s).
  - getType
```
public static final Type getType(String signature)
                          throws StringIndexOutOfBoundsException
```
    Convert signature to a Type object.
    
    Parameters:
    signature - signature string such as Ljava/lang/String;
    
    Returns:
    type object
    
    Throws:
    
    StringIndexOutOfBoundsException
  - getReturnType
```
public static Type getReturnType(String signature)
```
    Convert return value of a method (signature) to a Type object.
    
    Parameters:
    signature - signature string such as (Ljava/lang/String;)V
    
    Returns:
    return type
  - getArgumentTypes
```
public static Type[] getArgumentTypes(String signature)
```
    Convert arguments of a method (signature) to an array of Type objects.
    
    Parameters:
    signature - signature string such as (Ljava/lang/String;)V
    
    Returns:
    array of argument types
  - getType
```
public static Type getType(Class cl)
```
    Convert runtime java.lang.Class to BCEL Type object.
    
    Parameters:
    cl - Java class
    
    Returns:
    corresponding Type object
  - getTypes
```
public static Type[] getTypes(Class[] classes)
```
    Convert runtime java.lang.Class[] to BCEL Type objects.
    
    Parameters:
    classes - an array of runtime class objects
    
    Returns:
    array of corresponding Type objects
  - getSignature
```
public static String getSignature(Method meth)
```

Class Type

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

type

signature

VOID

BOOLEAN

INT

SHORT

BYTE

LONG

DOUBLE

FLOAT

CHAR

OBJECT

CLASS

STRING

STRINGBUFFER

THROWABLE

NO_ARGS

NULL

UNKNOWN

Constructor Detail

Type

Method Detail

hashCode

equals

getSignature

getType

getSize

toString

getMethodSignature

getType

getReturnType

getArgumentTypes

getType

getTypes

getSignature