DoubleHolder

org.omg.CORBA

Class DoubleHolder

java.lang.Object
- org.omg.CORBA.DoubleHolder

All Implemented Interfaces:

Streamable
```
public final class DoubleHolder
extends Object
implements Streamable
```
The Holder for Double. For more information on Holder files, see "Generated Files: Holder Files".
A Holder class for a double that is used to store "out" and "inout" parameters in IDL methods. If an IDL method signature has an IDL double as an "out" or "inout" parameter, the programmer must pass an instance of DoubleHolder as the corresponding parameter in the method invocation; for "inout" parameters, the programmer must also fill the "in" value to be sent to the server. Before the method invocation returns, the ORB will fill in the value corresponding to the "out" value returned from the server.

If myDoubleHolder is an instance of DoubleHolder, the value stored in its value field can be accessed with myDoubleHolder.value.

Since:

JDK1.2

Field Summary

Fields

Modifier and Type	Field and Description
`double`	`value` The `double` value held by this `DoubleHolder` object.

Constructor Summary

Constructors

Constructor and Description
`DoubleHolder()` Constructs a new `DoubleHolder` object with its `value` field initialized to 0.0.
`DoubleHolder(double initial)` Constructs a new `DoubleHolder` object for the given `double`.

Method Summary

All Methods

Instance Methods

Concrete Methods
Modifier and Type	Method and Description
`void`	`_read(InputStream input)` Read a double value from the input stream and store it in the value member.
`TypeCode`	`_type()` Return the `TypeCode` of this holder object.
`void`	`_write(OutputStream output)` Write the double value stored in this holder to an `OutputStream`.

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

- Field Detail
  - value
```
public double value
```
    The double value held by this DoubleHolder object.
- Constructor Detail
  - DoubleHolder
```
public DoubleHolder()
```
    Constructs a new DoubleHolder object with its value field initialized to 0.0.
  - DoubleHolder
```
public DoubleHolder(double initial)
```
    Constructs a new DoubleHolder object for the given double.
    
    Parameters:
    
    initial - the double with which to initialize the value field of the new DoubleHolder object
- Method Detail
  - _read
```
public void _read(InputStream input)
```
    Read a double value from the input stream and store it in the value member.
    
    Specified by:
    
    _read in interface Streamable
    
    Parameters:
    
    input - the InputStream to read from.
  - _write
```
public void _write(OutputStream output)
```
    Write the double value stored in this holder to an OutputStream.
    
    Specified by:
    
    _write in interface Streamable
    
    Parameters:
    
    output - the OutputStream to write into.
  - _type
```
public TypeCode _type()
```
    Return the TypeCode of this holder object.
    
    Specified by:
    
    _type in interface Streamable
    
    Returns:
    
    the TypeCode object.