Field

java.lang.Object
- polyglot.types.reflect.Field

Direct Known Subclasses:

JL5Field
```
public class Field
extends java.lang.Object
```
Field models a field (member variable) in a class. The Field class grants access to information such as the field's modifiers, its name and type descriptor (represented as indices into the constant pool), and any attributes of the field. Static fields have a ConstantValue attribute.

Author:

Nate Nystrom (nystrom@cs.purdue.edu)

See Also:
ConstantValue

Field Summary

Fields
Modifier and Type	Field and Description
`protected Attribute[]`	`attrs`
`protected ClassFile`	`clazz`
`protected ConstantValue`	`constantValue`
`protected java.io.DataInputStream`	`in`
`protected int`	`modifiers`
`protected int`	`name`
`protected boolean`	`synthetic`
`protected int`	`type`

Constructor Summary

Constructors
Modifier Constructor and Description

protected Field(java.io.DataInputStream in, ClassFile clazz)
Constructor.

Constructors
Modifier	Constructor and Description
`protected`	`Field(java.io.DataInputStream in, ClassFile clazz)` Constructor.

Method Summary

Methods
Modifier and Type	Method and Description
`Constant`	`constantValue()`
`Attribute[]`	`getAttrs()`
`ClassFile`	`getClazz()`
`ConstantValue`	`getConstantValue()`
`double`	`getDouble()`
`float`	`getFloat()`
`int`	`getInt()`
`long`	`getLong()`
`int`	`getModifiers()`
`int`	`getName()`
`java.lang.String`	`getString()`
`int`	`getType()`
`void`	`initialize()`
`boolean`	`isConstant()`
`boolean`	`isString(Type t)` Return true of t is java.lang.String.
`boolean`	`isSynthetic()`
`java.lang.String`	`name()`

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

Field Detail

in
```
protected java.io.DataInputStream in
```

clazz
```
protected ClassFile clazz
```

modifiers
```
protected int modifiers
```

name
```
protected int name
```

type
```
protected int type
```

attrs
```
protected Attribute[] attrs
```

constantValue
```
protected ConstantValue constantValue
```

synthetic
```
protected boolean synthetic
```

Constructor Detail
- Field
```
protected Field(java.io.DataInputStream in,
     ClassFile clazz)
         throws java.io.IOException
```
  Constructor. Read a field from a class file.
  
  Parameters:
  in - The data stream of the class file.
  clazz - The class file containing the field.
  
  Throws:
  
  java.io.IOException - If an error occurs while reading.

Method Detail

initialize

public void initialize()
                throws java.io.IOException

Throws:: java.io.IOException

isString
```
public boolean isString(Type t)
```
Return true of t is java.lang.String. We don't compare against ts.String() because ts.String() may not yet be set.

isSynthetic
```
public boolean isSynthetic()
```

isConstant
```
public boolean isConstant()
```

constantValue
```
public Constant constantValue()
```

getInt

public int getInt()
           throws SemanticException

Throws:: SemanticException

getFloat

public float getFloat()
               throws SemanticException

Throws:: SemanticException

getDouble

public double getDouble()
                 throws SemanticException

Throws:: SemanticException

getLong

public long getLong()
             throws SemanticException

Throws:: SemanticException

getString

public java.lang.String getString()
                           throws SemanticException

Throws:: SemanticException

getAttrs
```
public Attribute[] getAttrs()
```

getClazz
```
public ClassFile getClazz()
```

getConstantValue

public ConstantValue getConstantValue()

getModifiers
```
public int getModifiers()
```

getName
```
public int getName()
```

getType
```
public int getType()
```

name
```
public java.lang.String name()
```

Class Field

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

in

clazz

modifiers

name

type

attrs

constantValue

synthetic

Constructor Detail

Field

Method Detail

initialize

isString

isSynthetic

isConstant

constantValue

getInt

getFloat

getDouble

getLong

getString

getAttrs

getClazz

getConstantValue

getModifiers

getName

getType

name