com.vladium.jcd.cls

类 Field_info

java.lang.Object

com.vladium.jcd.cls.Field_info

所有已实现的接口:

IAccessFlags, Cloneable

public final class Field_info
extends Object
implements Cloneable, IAccessFlags

Each class field is described by a variable-length field_info structure. The format of this structure is

  field_info {
          u2 access_flags;
          u2 name_index;
          u2 descriptor_index;
          u2 attributes_count;
          attribute_info attributes[attributes_count];
  }
 

The value of the access_flags item is a mask of modifiers used to describe access permission to and properties of a field.

The value of the name_index item must be a valid index into the constant pool table. The constant pool entry at that index must be a CONSTANT_Utf8_info structure which must represent a valid Java field name stored as a simple (not fully qualified) name, that is, as a Java identifier.

The value of the descriptor_index item must be a valid index into the constant pool table. The constant pool entry at that index must be a CONSTANT_Utf8_info structure which must represent a valid Java field descriptor.

Each value of the attributes table must be a variable-length attribute structure. A field can have any number of attributes associated with it. The only attribute defined for the attributes table of a field_info structure at the moment is the ConstantValue attribute -- see ConstantValueAttribute_info.

作者:

(C) 2001, Vlad Roubtsov

字段概要

字段

限定符和类型	字段和说明
int	m_descriptor_index
int	m_name_index

从接口继承的字段 com.vladium.jcd.cls.IAccessFlags

ACC_ABSTRACT, ACC_BRIDGE, ACC_FINAL, ACC_INTERFACE, ACC_NATIVE, ACC_PRIVATE, ACC_PROTECTED, ACC_PUBLIC, ACC_STATIC, ACC_SUPER, ACC_SYNCHRONIZED, ACC_TRANSIENT, ACC_VOLATILE, ALL_ACC, ALL_ACC_NAMES

构造器概要

构造器

构造器和说明
Field_info(IConstantCollection constants, UDataInputStream bytes)
Field_info(int access_flags, int name_index, int descriptor_index, IAttributeCollection attributes)

方法概要

限定符和类型	方法和说明
Object	clone() Performs a deep copy.
int	getAccessFlags()
IAttributeCollection	getAttributes()
String	getDescriptor(ClassDef cls) Returns the descriptor string for this field within the context of 'cls' class definition.
String	getName(ClassDef cls) Returns the field name within the context of 'cls' class definition.
boolean	isSynthetic()
void	setAccessFlags(int flags)
String	toString()
void	writeInClassFormat(UDataOutputStream out)

从类继承的方法 java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

字段详细资料

m_name_index

public int m_name_index

m_descriptor_index

public int m_descriptor_index

构造器详细资料

Field_info

public Field_info(int access_flags,
                  int name_index,
                  int descriptor_index,
                  IAttributeCollection attributes)

Field_info

public Field_info(IConstantCollection constants,
                  UDataInputStream bytes)
           throws IOException

抛出:

IOException

方法详细资料

getName

public String getName(ClassDef cls)

Returns the field name within the context of 'cls' class definition.

参数:

cls - class that contains this field

返回:

field name

getDescriptor

public String getDescriptor(ClassDef cls)

Returns the descriptor string for this field within the context of 'cls' class definition.

参数:

cls - class that contains this field

返回:

field typename descriptor

isSynthetic

public boolean isSynthetic()

setAccessFlags

public final void setAccessFlags(int flags)

指定者:

setAccessFlags 在接口中 IAccessFlags

getAccessFlags

public final int getAccessFlags()

指定者:

getAccessFlags 在接口中 IAccessFlags

getAttributes

public IAttributeCollection getAttributes()

toString

public String toString()

覆盖:

toString 在类中 Object

clone

public Object clone()

Performs a deep copy.

覆盖:

clone 在类中 Object

writeInClassFormat

public void writeInClassFormat(UDataOutputStream out)
                        throws IOException

抛出:

IOException