FinalizeTrigger (Jython API documentation)

java.lang.Object
- org.python.core.finalization.FinalizeTrigger

```
public class FinalizeTrigger
extends Object
```
To use finalizers on PyObjects, read the documentation of FinalizablePyObject.

Field Summary

Fields
Modifier and Type	Field and Description
`static FinalizeTriggerFactory`	`factory` This factory hook is reserved for use by JyNI.
`static byte`	`FINALIZED_FLAG` Indicates that this trigger was already finalized.
`byte`	`flags`
`static byte`	`NOT_FINALIZABLE_FLAG` Indicates that the underlying PyObject was never intended to be finalized.
`static byte`	`NOTIFY_GC_FLAG` This flag tells the finalize trigger to call `gc.notifyFinalize(PyObject)` after it called the finalizer.
`static byte`	`ONLY_BUILTIN_FLAG` Indicates that only `FinalizableBuiltin` shall be called.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`static void`	`appendFinalizeTriggerForBuiltin(PyObject obj)`
`void`	`clear()`
`static void`	`ensureFinalizer(PyObject resurrect)` Recreates the `FinalizeTrigger` of the given object.
`static boolean`	`hasActiveTrigger(PyObject obj)`
`boolean`	`isActive()`
`static boolean`	`isFinalizable(PyObject obj)`
`boolean`	`isFinalized()`
`static FinalizeTrigger`	`makeTrigger(PyObject toFinalize)`
`void`	`performFinalization()`
`static void`	`runFinalizer(PyObject toFinalize)`
`static void`	`runFinalizer(PyObject toFinalize, boolean runBuiltinOnly)`
`void`	`trigger(PyObject toFinalize)`

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

- Field Detail
  - NOTIFY_GC_FLAG
```
public static final byte NOTIFY_GC_FLAG
```
    This flag tells the finalize trigger to call gc.notifyFinalize(PyObject) after it called the finalizer.
    
    See Also:
    
    Constant Field Values
  - NOT_FINALIZABLE_FLAG
```
public static final byte NOT_FINALIZABLE_FLAG
```
    Indicates that the underlying PyObject was never intended to be finalized. It is actually not finalizable and the trigger only exists to notify gc that the underlying object was finalized. This is needed for some advanced gc-functionality.
    
    See Also:
    
    Constant Field Values
  - ONLY_BUILTIN_FLAG
```
public static final byte ONLY_BUILTIN_FLAG
```
    Indicates that only FinalizableBuiltin shall be called.
    
    See Also:
    
    Constant Field Values
  - FINALIZED_FLAG
```
public static final byte FINALIZED_FLAG
```
    Indicates that this trigger was already finalized.
    
    See Also:
    
    Constant Field Values
  - factory
```
public static FinalizeTriggerFactory factory
```
    This factory hook is reserved for use by JyNI. It allows to replace the default FinalizeTrigger. JyNI needs it to support garbage collection.
  - flags
```
public byte flags
```
- Method Detail
  - makeTrigger
```
public static FinalizeTrigger makeTrigger(PyObject toFinalize)
```
  - hasActiveTrigger
```
public static boolean hasActiveTrigger(PyObject obj)
```
  - isFinalizable
```
public static boolean isFinalizable(PyObject obj)
```
  - ensureFinalizer
```
public static void ensureFinalizer(PyObject resurrect)
```
    Recreates the FinalizeTrigger of the given object. This makes sure that once the resurrected object is gc'ed again, its __del__-method will be called again.
  - runFinalizer
```
public static void runFinalizer(PyObject toFinalize)
```
  - runFinalizer
```
public static void runFinalizer(PyObject toFinalize,
                                boolean runBuiltinOnly)
```
  - appendFinalizeTriggerForBuiltin
```
public static void appendFinalizeTriggerForBuiltin(PyObject obj)
```
  - clear
```
public void clear()
```
  - trigger
```
public void trigger(PyObject toFinalize)
```
  - isActive
```
public boolean isActive()
```
  - performFinalization
```
public void performFinalization()
```
  - isFinalized
```
public boolean isFinalized()
```

Class FinalizeTrigger

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

NOTIFY_GC_FLAG

NOT_FINALIZABLE_FLAG

ONLY_BUILTIN_FLAG

FINALIZED_FLAG

factory

flags

Method Detail

makeTrigger

hasActiveTrigger

isFinalizable

ensureFinalizer

runFinalizer

runFinalizer

appendFinalizeTriggerForBuiltin

clear

trigger

isActive

performFinalization

isFinalized