Type (Drools 4.0.0.11754MR2 API) - JBoss RULES 4.0.0.11754MR2 API 英文版文档

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org.drools.asm
Class Type

java.lang.Object
  org.drools.asm.Type

public class Type
extends Object
extends Object

A Java type. This class can be used to make it easier to manipulate type and method descriptors.

Author:: Eric Bruneton, Chris Nokleberg

Field Summary

static int ARRAY
          The sort of array reference types.

static int BOOLEAN
          The sort of the boolean type.

static Type BOOLEAN_TYPE
          The boolean type.

static int BYTE
          The sort of the byte type.

static Type BYTE_TYPE
          The byte type.

static int CHAR
          The sort of the char type.

static Type CHAR_TYPE
          The char type.

static int DOUBLE
          The sort of the double type.

static Type DOUBLE_TYPE
          The double type.

static int FLOAT
          The sort of the float type.

static Type FLOAT_TYPE
          The float type.

static int INT
          The sort of the int type.

static Type INT_TYPE
          The int type.

static int LONG
          The sort of the long type.

static Type LONG_TYPE
          The long type.

static int OBJECT
          The sort of object reference type.

static int SHORT
          The sort of the short type.

static Type SHORT_TYPE
          The short type.

static int VOID
          The sort of the void type.

static Type VOID_TYPE
          The void type.

Method Summary

boolean equals(Object o)
          Tests if the given object is equal to this type.

static Type[] getArgumentTypes(Method method)
          Returns the Java types corresponding to the argument types of the given method.

static Type[] getArgumentTypes(String methodDescriptor)
          Returns the Java types corresponding to the argument types of the given method descriptor.

String getClassName()
          Returns the name of the class corresponding to this type.

String getDescriptor()
          Returns the descriptor corresponding to this Java type.

static String getDescriptor(Class c)
          Returns the descriptor corresponding to the given Java type.

int getDimensions()
          Returns the number of dimensions of this array type.

Type getElementType()
          Returns the type of the elements of this array type.

String getInternalName()
          Returns the internal name of the class corresponding to this object type.

static String getInternalName(Class c)
          Returns the internal name of the given class.

static String getMethodDescriptor(Method m)
          Returns the descriptor corresponding to the given method.

static String getMethodDescriptor(Type returnType, Type[] argumentTypes)
          Returns the descriptor corresponding to the given argument and return types.

int getOpcode(int opcode)
          Returns a JVM instruction opcode adapted to this Java type.

static Type getReturnType(Method method)
          Returns the Java type corresponding to the return type of the given method.

static Type getReturnType(String methodDescriptor)
          Returns the Java type corresponding to the return type of the given method descriptor.

int getSize()
          Returns the size of values of this type.

int getSort()
          Returns the sort of this Java type.

static Type getType(Class c)
          Returns the Java type corresponding to the given class.

static Type getType(String typeDescriptor)
          Returns the Java type corresponding to the given type descriptor.

int hashCode()
          Returns a hash code value for this type.

String toString()
          Returns a string representation of this type.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Summary
`static int`	`ARRAY` The sort of array reference types.
`static int`	`BOOLEAN` The sort of the `boolean` type.
`static Type`	`BOOLEAN_TYPE` The `boolean` type.
`static int`	`BYTE` The sort of the `byte` type.
`static Type`	`BYTE_TYPE` The `byte` type.
`static int`	`CHAR` The sort of the `char` type.
`static Type`	`CHAR_TYPE` The `char` type.
`static int`	`DOUBLE` The sort of the `double` type.
`static Type`	`DOUBLE_TYPE` The `double` type.
`static int`	`FLOAT` The sort of the `float` type.
`static Type`	`FLOAT_TYPE` The `float` type.
`static int`	`INT` The sort of the `int` type.
`static Type`	`INT_TYPE` The `int` type.
`static int`	`LONG` The sort of the `long` type.
`static Type`	`LONG_TYPE` The `long` type.
`static int`	`OBJECT` The sort of object reference type.
`static int`	`SHORT` The sort of the `short` type.
`static Type`	`SHORT_TYPE` The `short` type.
`static int`	`VOID` The sort of the `void` type.
`static Type`	`VOID_TYPE` The `void` type.

Method Summary
`boolean`	`equals(Object o)` Tests if the given object is equal to this type.
`static Type[]`	`getArgumentTypes(Method method)` Returns the Java types corresponding to the argument types of the given method.
`static Type[]`	`getArgumentTypes(String methodDescriptor)` Returns the Java types corresponding to the argument types of the given method descriptor.
`String`	`getClassName()` Returns the name of the class corresponding to this type.
`String`	`getDescriptor()` Returns the descriptor corresponding to this Java type.
`static String`	`getDescriptor(Class c)` Returns the descriptor corresponding to the given Java type.
`int`	`getDimensions()` Returns the number of dimensions of this array type.
`Type`	`getElementType()` Returns the type of the elements of this array type.
`String`	`getInternalName()` Returns the internal name of the class corresponding to this object type.
`static String`	`getInternalName(Class c)` Returns the internal name of the given class.
`static String`	`getMethodDescriptor(Method m)` Returns the descriptor corresponding to the given method.
`static String`	`getMethodDescriptor(Type returnType, Type[] argumentTypes)` Returns the descriptor corresponding to the given argument and return types.
`int`	`getOpcode(int opcode)` Returns a JVM instruction opcode adapted to this Java type.
`static Type`	`getReturnType(Method method)` Returns the Java type corresponding to the return type of the given method.
`static Type`	`getReturnType(String methodDescriptor)` Returns the Java type corresponding to the return type of the given method descriptor.
`int`	`getSize()` Returns the size of values of this type.
`int`	`getSort()` Returns the sort of this Java type.
`static Type`	`getType(Class c)` Returns the Java type corresponding to the given class.
`static Type`	`getType(String typeDescriptor)` Returns the Java type corresponding to the given type descriptor.
`int`	`hashCode()` Returns a hash code value for this type.
`String`	`toString()` Returns a string representation of this type.

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

Field Detail

VOID

public static final int VOID

The sort of the void type. See getSort.

See Also:: Constant Field Values

BOOLEAN

public static final int BOOLEAN

The sort of the boolean type. See getSort.

See Also:: Constant Field Values

CHAR

public static final int CHAR

The sort of the char type. See getSort.

See Also:: Constant Field Values

BYTE

public static final int BYTE

The sort of the byte type. See getSort.

See Also:: Constant Field Values

SHORT

public static final int SHORT

The sort of the short type. See getSort.

See Also:: Constant Field Values

INT

public static final int INT

The sort of the int type. See getSort.

See Also:: Constant Field Values

FLOAT

public static final int FLOAT

The sort of the float type. See getSort.

See Also:: Constant Field Values

LONG

public static final int LONG

The sort of the long type. See getSort.

See Also:: Constant Field Values

DOUBLE

public static final int DOUBLE

The sort of the double type. See getSort.

See Also:: Constant Field Values

ARRAY

public static final int ARRAY

The sort of array reference types. See getSort.

See Also:: Constant Field Values

OBJECT

public static final int OBJECT

The sort of object reference type. See getSort.

See Also:: Constant Field Values

VOID_TYPE

public static final Type VOID_TYPE

The void type.

BOOLEAN_TYPE

public static final Type BOOLEAN_TYPE

The boolean type.

CHAR_TYPE

public static final Type CHAR_TYPE

The char type.

BYTE_TYPE

public static final Type BYTE_TYPE

The byte type.

SHORT_TYPE

public static final Type SHORT_TYPE

The short type.

INT_TYPE

public static final Type INT_TYPE

The int type.

FLOAT_TYPE

public static final Type FLOAT_TYPE

The float type.

LONG_TYPE

public static final Type LONG_TYPE

The long type.

DOUBLE_TYPE

public static final Type DOUBLE_TYPE

The double type.

Method Detail

getType

public static Type getType(String typeDescriptor)

Returns the Java type corresponding to the given type descriptor.

Parameters:: typeDescriptor - a type descriptor.
Returns:: the Java type corresponding to the given type descriptor.

getType

public static Type getType(Class c)

Returns the Java type corresponding to the given class.

Parameters:: c - a class.
Returns:: the Java type corresponding to the given class.

getArgumentTypes

public static Type[] getArgumentTypes(String methodDescriptor)

Returns the Java types corresponding to the argument types of the given method descriptor.

Parameters:: methodDescriptor - a method descriptor.
Returns:: the Java types corresponding to the argument types of the given method descriptor.

getArgumentTypes

public static Type[] getArgumentTypes(Method method)

Returns the Java types corresponding to the argument types of the given method.

Parameters:: method - a method.
Returns:: the Java types corresponding to the argument types of the given method.

getReturnType

public static Type getReturnType(String methodDescriptor)

Returns the Java type corresponding to the return type of the given method descriptor.

Parameters:: methodDescriptor - a method descriptor.
Returns:: the Java type corresponding to the return type of the given method descriptor.

getReturnType

public static Type getReturnType(Method method)

Returns the Java type corresponding to the return type of the given method.

Parameters:: method - a method.
Returns:: the Java type corresponding to the return type of the given method.

getSort

public int getSort()

Returns the sort of this Java type.

Returns:: VOID, BOOLEAN, CHAR, BYTE, SHORT, INT, FLOAT, LONG, DOUBLE, ARRAY or OBJECT.

getDimensions

public int getDimensions()

Returns the number of dimensions of this array type. This method should only be used for an array type.

Returns:: the number of dimensions of this array type.

getElementType

public Type getElementType()

Returns the type of the elements of this array type. This method should only be used for an array type.

Returns:: Returns the type of the elements of this array type.

getClassName

public String getClassName()

Returns the name of the class corresponding to this type.

Returns:: the fully qualified name of the class corresponding to this type.

getInternalName

public String getInternalName()

Returns the internal name of the class corresponding to this object type. The internal name of a class is its fully qualified name, where '.' are replaced by '/'. This method should only be used for an object type.

Returns:: the internal name of the class corresponding to this object type.

getDescriptor

public String getDescriptor()

Returns the descriptor corresponding to this Java type.

Returns:: the descriptor corresponding to this Java type.

getMethodDescriptor

public static String getMethodDescriptor(Type returnType,
                                         Type[] argumentTypes)

Returns the descriptor corresponding to the given argument and return types.

Parameters:: returnType - the return type of the method.; argumentTypes - the argument types of the method.
Returns:: the descriptor corresponding to the given argument and return types.

getInternalName

public static String getInternalName(Class c)

Returns the internal name of the given class. The internal name of a class is its fully qualified name, where '.' are replaced by '/'.

Parameters:: c - an object class.
Returns:: the internal name of the given class.

getDescriptor

public static String getDescriptor(Class c)

Returns the descriptor corresponding to the given Java type.

Parameters:: c - an object class, a primitive class or an array class.
Returns:: the descriptor corresponding to the given class.

getMethodDescriptor

public static String getMethodDescriptor(Method m)

Returns the descriptor corresponding to the given method.

Parameters:: m - a Method object.
Returns:: the descriptor of the given method.

getSize

public int getSize()

Returns the size of values of this type.

Returns:: the size of values of this type, i.e., 2 for long and double, and 1 otherwise.

getOpcode

public int getOpcode(int opcode)

Returns a JVM instruction opcode adapted to this Java type.

Parameters:: opcode - a JVM instruction opcode. This opcode must be one of ILOAD, ISTORE, IALOAD, IASTORE, IADD, ISUB, IMUL, IDIV, IREM, INEG, ISHL, ISHR, IUSHR, IAND, IOR, IXOR and IRETURN.
Returns:: an opcode that is similar to the given opcode, but adapted to this Java type. For example, if this type is float and opcode is IRETURN, this method returns FRETURN.

equals

public boolean equals(Object o)

Tests if the given object is equal to this type.

Overrides:: equals in class Object

Parameters:: o - the object to be compared to this type.
Returns:: true if the given object is equal to this type.

hashCode

public int hashCode()

Returns a hash code value for this type.

Overrides:: hashCode in class Object

Returns:: a hash code value for this type.

toString

public String toString()

Returns a string representation of this type.

Overrides:: toString in class Object

Returns:: the descriptor of this type.

Overview

Package

Class

Use

Tree

Deprecated

Index

Help

PREV CLASS NEXT CLASS

FRAMES NO FRAMES

SUMMARY: NESTED | FIELD | CONSTR | METHOD

DETAIL: FIELD | CONSTR | METHOD

Type (Drools 4.0.0.11754MR2 API) - JBoss RULES 4.0.0.11754MR2 API 英文版文档

org.drools.asm Class Type

VOID

BOOLEAN

CHAR

BYTE

SHORT

INT

FLOAT

LONG

DOUBLE

ARRAY

OBJECT

VOID_TYPE

BOOLEAN_TYPE

CHAR_TYPE

BYTE_TYPE

SHORT_TYPE

INT_TYPE

FLOAT_TYPE

LONG_TYPE

DOUBLE_TYPE

getType

getType

getArgumentTypes

getArgumentTypes

getReturnType

getReturnType

getSort

getDimensions

getElementType

getClassName

getInternalName

getDescriptor

getMethodDescriptor

getInternalName

getDescriptor

getMethodDescriptor

getSize

getOpcode

equals

hashCode

toString

org.drools.asm
Class Type