java.lang.Object
- com.tonic.parser.constpool.Item<T>

Type Parameters:

T - The type of the value held by the constant pool item.

Direct Known Subclasses:

ClassRefItem, ConstantDynamicItem, DoubleItem, FieldRefItem, FloatItem, IntegerItem, InterfaceRefItem, InvokeDynamicItem, LongItem, MethodHandleItem, MethodRefItem, MethodTypeItem, ModuleItem, NameAndTypeRefItem, PackageItem, StringRefItem, Utf8Item
```
public abstract class Item<T>
extends Object
```
Abstract representation of a constant pool item.

Field Summary

Fields
Modifier and Type	Field	Description
`static byte`	`ITEM_CLASS_REF`
`static byte`	`ITEM_DOUBLE`
`static byte`	`ITEM_DYNAMIC`
`static byte`	`ITEM_FIELD_REF`
`static byte`	`ITEM_FLOAT`
`static byte`	`ITEM_INTEGER`
`static byte`	`ITEM_INTERFACE_REF`
`static byte`	`ITEM_INVOKEDYNAMIC`
`static byte`	`ITEM_LONG`
`static byte`	`ITEM_METHOD_HANDLE`
`static byte`	`ITEM_METHOD_REF`
`static byte`	`ITEM_METHOD_TYPE`
`static byte`	`ITEM_MODULE`
`static byte`	`ITEM_NAME_TYPE_REF`
`static byte`	`ITEM_PACKAGE`
`static byte`	`ITEM_STRING_REF`
`static byte`	`ITEM_UTF_8`

Constructor Summary

Constructors
Constructor Description

Item()

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`accept(AbstractClassVisitor visitor)`	Accepts a visitor for the visitor pattern.
`int`	`getIndex(ConstPool constPool)`	Gets the index of this item in the constant pool.
`abstract byte`	`getType()`	Returns the type of the constant pool item.
`abstract T`	`getValue()`	Returns the value held by the constant pool item.
`abstract void`	`read(ClassFile classFile)`	Reads the constant pool item from the class file.
`void`	`setClassFile(ClassFile classFile)`	Binds this item to the class file that owns its pool.
`abstract void`	`write(DataOutputStream dos)`	Writes the item to the output stream (excluding the tag byte, which is written by the caller).

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - ITEM_UTF_8
```
public static final byte ITEM_UTF_8
```
    See Also:
    
    Constant Field Values
  - ITEM_INTEGER
```
public static final byte ITEM_INTEGER
```
    See Also:
    
    Constant Field Values
  - ITEM_FLOAT
```
public static final byte ITEM_FLOAT
```
    See Also:
    
    Constant Field Values
  - ITEM_LONG
```
public static final byte ITEM_LONG
```
    See Also:
    
    Constant Field Values
  - ITEM_DOUBLE
```
public static final byte ITEM_DOUBLE
```
    See Also:
    
    Constant Field Values
  - ITEM_CLASS_REF
```
public static final byte ITEM_CLASS_REF
```
    See Also:
    
    Constant Field Values
  - ITEM_STRING_REF
```
public static final byte ITEM_STRING_REF
```
    See Also:
    
    Constant Field Values
  - ITEM_FIELD_REF
```
public static final byte ITEM_FIELD_REF
```
    See Also:
    
    Constant Field Values
  - ITEM_METHOD_REF
```
public static final byte ITEM_METHOD_REF
```
    See Also:
    
    Constant Field Values
  - ITEM_INTERFACE_REF
```
public static final byte ITEM_INTERFACE_REF
```
    See Also:
    
    Constant Field Values
  - ITEM_NAME_TYPE_REF
```
public static final byte ITEM_NAME_TYPE_REF
```
    See Also:
    
    Constant Field Values
  - ITEM_METHOD_HANDLE
```
public static final byte ITEM_METHOD_HANDLE
```
    See Also:
    
    Constant Field Values
  - ITEM_METHOD_TYPE
```
public static final byte ITEM_METHOD_TYPE
```
    See Also:
    
    Constant Field Values
  - ITEM_DYNAMIC
```
public static final byte ITEM_DYNAMIC
```
    See Also:
    
    Constant Field Values
  - ITEM_INVOKEDYNAMIC
```
public static final byte ITEM_INVOKEDYNAMIC
```
    See Also:
    
    Constant Field Values
  - ITEM_PACKAGE
```
public static final byte ITEM_PACKAGE
```
    See Also:
    
    Constant Field Values
  - ITEM_MODULE
```
public static final byte ITEM_MODULE
```
    See Also:
    
    Constant Field Values
- Constructor Detail
  - Item
```
public Item()
```
- Method Detail
  - setClassFile
```
public void setClassFile(ClassFile classFile)
```
    Binds this item to the class file that owns its pool.
    
    Parameters:
    
    classFile - the owning class file
  - read
```
public abstract void read(ClassFile classFile)
```
    Reads the constant pool item from the class file.
    
    Parameters:
    
    classFile - The ClassFile utility to read data.
  - write
```
public abstract void write(DataOutputStream dos)
                    throws IOException
```
    Writes the item to the output stream (excluding the tag byte, which is written by the caller).
    
    Parameters:
    
    dos - The output stream to write to.
    
    Throws:
    
    IOException - If an I/O error occurs.
  - getType
```
public abstract byte getType()
```
    Returns the type of the constant pool item.
    
    Returns:
    
    The constant pool tag.
  - getValue
```
public abstract T getValue()
```
    Returns the value held by the constant pool item.
    
    Returns:
    
    The value of type T.
  - accept
```
public void accept(AbstractClassVisitor visitor)
```
    Accepts a visitor for the visitor pattern.
    
    Parameters:
    
    visitor - The visitor to accept.
  - getIndex
```
public int getIndex(ConstPool constPool)
```
    Gets the index of this item in the constant pool.
    
    Parameters:
    
    constPool - The constant pool to search.
    
    Returns:
    
    The index of this item.

Class Item<T>

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

ITEM_UTF_8

ITEM_INTEGER

ITEM_FLOAT

ITEM_LONG

ITEM_DOUBLE

ITEM_CLASS_REF

ITEM_STRING_REF

ITEM_FIELD_REF

ITEM_METHOD_REF

ITEM_INTERFACE_REF

ITEM_NAME_TYPE_REF

ITEM_METHOD_HANDLE

ITEM_METHOD_TYPE

ITEM_DYNAMIC

ITEM_INVOKEDYNAMIC

ITEM_PACKAGE

ITEM_MODULE

Constructor Detail

Item

Method Detail

setClassFile

read

write

getType

getValue

accept

getIndex