SoSFTrigger

java.lang.Object
- com.openinventor.inventor.Inventor
- - com.openinventor.inventor.fields.SoField
  - - com.openinventor.inventor.fields.SoSField
    - - com.openinventor.inventor.fields.SoSFTrigger

```
public class SoSFTrigger
extends SoSField
```
Field used to trigger engines or connection networks. This class can be used to start or to synchronize a network of field connections. It is the "null" field - a field with no values. It is typically used as the "start button" for engines that change over time.
Triggers can be connected from any other type of field, and will notify any engines or nodes they are part of (or any other triggers they are connected to) whenever the value of the field is set (even if it is set to its current value) or the field is touch()'ed.
Since they have no value, SoSFTriggers are not written to file. A node or engine containing an SoSFTrigger field will write only the field's name.

See Also:

SoSFBool, SoMFBool

Nested Class Summary
- Nested classes/interfaces inherited from class com.openinventor.inventor.fields.SoField
  SoField.FieldTypes
- Nested classes/interfaces inherited from class com.openinventor.inventor.Inventor
  Inventor.ConstructorCommand

Field Summary
- Fields inherited from class com.openinventor.inventor.Inventor
  VERBOSE_LEVEL, ZeroHandle

Constructor Summary

Constructors
Constructor Description

SoSFTrigger(SoFieldContainer fieldContainer, java.lang.String fieldName, SoField.FieldTypes fieldType)
Default constructor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`equals(java.lang.Object obj)`
`void`	`getValue()`	Forces any connected engines or fields to evaluate themselves.
`void`	`setValue()`	Starts the notification process; this is equivalent to calling touch().

Methods inherited from class com.openinventor.inventor.fields.SoField
appendConnection, appendConnection, connectFrom, connectFrom, disconnect, disconnect, disconnect, enableConnection, get, getConnectedEngine, getConnectedField, getContainer, getNumConnections, getValueSize, isConnected, isConnectedFromEngine, isConnectedFromField, isConnectedFromVRMLInterp, isConnectionEnabled, isDefault, isIgnored, set, setIgnored, touch

Methods inherited from class com.openinventor.inventor.Inventor
dispose, getNativeResourceHandle

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

Constructor Detail

SoSFTrigger

public SoSFTrigger(SoFieldContainer fieldContainer,
                   java.lang.String fieldName,
                   SoField.FieldTypes fieldType)

Default constructor.

Method Detail
- setValue
```
public void setValue()
```
  Starts the notification process; this is equivalent to calling touch().
- equals
```
public boolean equals(java.lang.Object obj)
```
  Overrides:
  
  equals in class SoField
- getValue
```
public void getValue()
```
  Forces any connected engines or fields to evaluate themselves.