ExpressionStructureBinding

java.lang.Object
- com.inductiveautomation.perspective.gateway.binding.expression.structure.ExpressionStructureBinding

All Implemented Interfaces:

ExpressionStructureBindingConstants, Binding
```
public class ExpressionStructureBinding
extends java.lang.Object
implements Binding, ExpressionStructureBindingConstants
```
An ExpressionStructureBinding is a Binding where a given JSON document of any shape / size will have all its string value leaf nodes interpreted as expression sources

Field Summary
- Fields inherited from interface com.inductiveautomation.perspective.gateway.api.Binding
  BAD_CONFIG, BAD_REF, BIDIRECTIONAL_KEY, INITIAL_VALUE, MDC_BINDING_TARGET, NOT_FOUND
- Fields inherited from interface com.inductiveautomation.perspective.common.config.constants.ExpressionStructureBindingConstants
  TYPE_ID

Constructor Summary

Constructors
Constructor	Description
`ExpressionStructureBinding(BindingContext bindingContext, BindingConfig bindingConfig, PerspectiveExpressionFactory exprFactory)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`onUserRefresh()`	Called to prompt the binding to produce a value as soon as possible.
`void`	`shutdown()`	Shut down the binding.
`void`	`startup()`	Start up the binding.

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

Methods inherited from interface com.inductiveautomation.perspective.gateway.api.Binding
isBidirectional, onTargetUpdated

- Constructor Detail
  - ExpressionStructureBinding
```
public ExpressionStructureBinding(@Nonnull
                                  BindingContext bindingContext,
                                  @Nonnull
                                  BindingConfig bindingConfig,
                                  @Nonnull
                                  PerspectiveExpressionFactory exprFactory)
                           throws ConfigurationException
```
    Throws:
    
    ConfigurationException
- Method Detail
  - startup
```
public void startup()
```
    Description copied from interface: Binding
    
    Start up the binding. Will be called on-queue
    
    Specified by:
    
    startup in interface Binding
  - shutdown
```
public void shutdown()
```
    Description copied from interface: Binding
    
    Shut down the binding. Will be called on-queue
    
    Specified by:
    
    shutdown in interface Binding
  - onUserRefresh
```
public void onUserRefresh()
```
    Description copied from interface: Binding
    
    Called to prompt the binding to produce a value as soon as possible. This _not_ the normal way that bindings work. Bindings are expected to produce a value un-prompted after startup, and then again whenever they feel is appropriate. This is there to allow the user to call component.refreshBinding(property) and prompt a non-polling binding to run.
    
    Specified by:
    
    onUserRefresh in interface Binding