AbstractNativeProxy (Exonum Java Binding: Core 0.5.0 API)

java.lang.Object
- com.exonum.binding.proxy.AbstractNativeProxy

Direct Known Subclasses:

AbstractCloseableNativeProxy, EntryIndexProxy, KeySetIndexProxy, ListIndexProxy, MapIndexProxy, ProofListIndexProxy, ProofMapIndexProxy, ValueSetIndexProxy, View
```
public abstract class AbstractNativeProxy
extends java.lang.Object
```
A base class of a native proxy.

Field Summary

Fields
Modifier and Type Field Description

protected NativeHandle nativeHandle
A handle to the native object.

Constructor Summary

Constructors
Modifier Constructor Description

protected AbstractNativeProxy(NativeHandle nativeHandle)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected long`	`getNativeHandle()`	Returns a handle to the native object if it may be safely used to access the native object.
`protected boolean`	`isValidHandle()`	Returns true if this proxy has a valid native handle.

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

- Field Detail
  - nativeHandle
```
protected final NativeHandle nativeHandle
```
    A handle to the native object.
- Constructor Detail
  - AbstractNativeProxy
```
protected AbstractNativeProxy(NativeHandle nativeHandle)
```
- Method Detail
  - getNativeHandle
```
protected long getNativeHandle()
```
    Returns a handle to the native object if it may be safely used to access the native object. Equivalent to nativeHandle.get().
    The returned value shall only be passed as an argument to native methods.
    Warning: do not cache the return value, as you won't be able to catch use-after-free.
    
    Throws:
    
    java.lang.IllegalStateException - if the native handle is invalid (closed or nullptr)
  - isValidHandle
```
protected final boolean isValidHandle()
```
    Returns true if this proxy has a valid native handle.