OrderedProperties (java-ordered-properties 1.0.4 API)

java.lang.Object
- nu.studer.java.util.OrderedProperties

All Implemented Interfaces:

java.io.Serializable
```
public final class OrderedProperties
extends java.lang.Object
implements java.io.Serializable
```
This class provides an alternative to the JDK's Properties class. It fixes the design flaw of using inheritance over composition, while keeping up the same APIs as the original class. Keys and values are guaranteed to be of type String.
This class is not synchronized, contrary to the original implementation.
As additional functionality, this class keeps its properties in a well-defined order. By default, the order is the one in which the individual properties have been added, either through explicit API calls or through reading them top-to-bottom from a properties file.
Also, an optional flag can be set to omit the comment that contains the current date when storing the properties to a properties file.
Currently, this class does not support the concept of default properties, contrary to the original implementation.
Note that this implementation is not synchronized. If multiple threads access ordered properties concurrently, and at least one of the threads modifies the ordered properties structurally, it must be synchronized externally. This is typically accomplished by synchronizing on some object that naturally encapsulates the properties.
Note that the actual (and quite complex) logic of parsing and storing properties from and to a stream is delegated to the Properties class from the JDK.

See Also:

Properties, Serialized Form

Nested Class Summary

Nested Classes
Modifier and Type Class and Description

static class OrderedProperties.OrderedPropertiesBuilder
Builder for OrderedProperties instances.

Nested Classes
Modifier and Type	Class and Description
`static class`	`OrderedProperties.OrderedPropertiesBuilder` Builder for `OrderedProperties` instances.

Constructor Summary

Constructors
Constructor and Description

OrderedProperties()
Creates a new instance that will keep the properties in the order they have been added.

Constructors
Constructor and Description
`OrderedProperties()` Creates a new instance that will keep the properties in the order they have been added.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`boolean`	`containsProperty(java.lang.String key)` Returns `true` if there is a property with the specified key.
`static OrderedProperties`	`copyOf(OrderedProperties source)` Creates a new instance that will have both the same property entries and the same behavior as the given source.
`java.util.Set<java.util.Map.Entry<java.lang.String,java.lang.String>>`	`entrySet()` See `Hashtable.entrySet()`.
`boolean`	`equals(java.lang.Object other)`
`java.lang.String`	`getProperty(java.lang.String key)` See `Properties.getProperty(String)`.
`java.lang.String`	`getProperty(java.lang.String key, java.lang.String defaultValue)` See `Properties.getProperty(String, String)`.
`int`	`hashCode()`
`boolean`	`isEmpty()` See `Hashtable.isEmpty()`.
`void`	`list(java.io.PrintStream stream)` See `Properties.list(PrintStream)`.
`void`	`list(java.io.PrintWriter writer)` See `Properties.list(PrintWriter)`.
`void`	`load(java.io.InputStream stream)` See `Properties.load(InputStream)`.
`void`	`load(java.io.Reader reader)` See `Properties.load(Reader)`.
`void`	`loadFromXML(java.io.InputStream stream)` See `Properties.loadFromXML(InputStream)`.
`java.util.Enumeration<java.lang.String>`	`propertyNames()` See `Properties.propertyNames()`.
`java.lang.String`	`removeProperty(java.lang.String key)` Removes the property with the specified key, if it is present.
`java.lang.String`	`setProperty(java.lang.String key, java.lang.String value)` See `Properties.setProperty(String, String)`.
`int`	`size()` See `Hashtable.size()`.
`void`	`store(java.io.OutputStream stream, java.lang.String comments)` See `Properties.store(OutputStream, String)`.
`void`	`store(java.io.Writer writer, java.lang.String comments)` See `Properties.store(Writer, String)`.
`void`	`storeToXML(java.io.OutputStream stream, java.lang.String comment)` See `Properties.storeToXML(OutputStream, String)`.
`void`	`storeToXML(java.io.OutputStream stream, java.lang.String comment, java.lang.String encoding)` See `Properties.storeToXML(OutputStream, String, String)`.
`java.util.Set<java.lang.String>`	`stringPropertyNames()` See `Properties.stringPropertyNames()`.
`java.util.Properties`	`toJdkProperties()` Convert this instance to a `Properties` instance.
`java.lang.String`	`toString()` See `Hashtable.toString()`.

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

- Constructor Detail
  - OrderedProperties
```
public OrderedProperties()
```
    Creates a new instance that will keep the properties in the order they have been added. Other than the ordering of the keys, this instance behaves like an instance of the Properties class.
- Method Detail
  - getProperty
```
public java.lang.String getProperty(java.lang.String key)
```
    See Properties.getProperty(String).
  - getProperty
```
public java.lang.String getProperty(java.lang.String key,
                                    java.lang.String defaultValue)
```
    See Properties.getProperty(String, String).
  - setProperty
```
public java.lang.String setProperty(java.lang.String key,
                                    java.lang.String value)
```
    See Properties.setProperty(String, String).
  - removeProperty
```
public java.lang.String removeProperty(java.lang.String key)
```
    Removes the property with the specified key, if it is present. Returns the value of the property, or null if there was no property with the specified key.
    
    Parameters:
    
    key - the key of the property to remove
    
    Returns:
    
    the previous value of the property, or null if there was no property with the specified key
  - containsProperty
```
public boolean containsProperty(java.lang.String key)
```
    Returns true if there is a property with the specified key.
    
    Parameters:
    
    key - the key whose presence is to be tested
  - size
```
public int size()
```
    See Hashtable.size().
  - isEmpty
```
public boolean isEmpty()
```
    See Hashtable.isEmpty().
  - propertyNames
```
public java.util.Enumeration<java.lang.String> propertyNames()
```
    See Properties.propertyNames().
  - stringPropertyNames
```
public java.util.Set<java.lang.String> stringPropertyNames()
```
    See Properties.stringPropertyNames().
  - entrySet
```
public java.util.Set<java.util.Map.Entry<java.lang.String,java.lang.String>> entrySet()
```
    See Hashtable.entrySet().
  - load
```
public void load(java.io.InputStream stream)
          throws java.io.IOException
```
    See Properties.load(InputStream).
    
    Throws:
    
    java.io.IOException
  - load
```
public void load(java.io.Reader reader)
          throws java.io.IOException
```
    See Properties.load(Reader).
    
    Throws:
    
    java.io.IOException
  - loadFromXML
```
public void loadFromXML(java.io.InputStream stream)
                 throws java.io.IOException,
                        java.util.InvalidPropertiesFormatException
```
    See Properties.loadFromXML(InputStream).
    
    Throws:
    
    java.io.IOException
    
    java.util.InvalidPropertiesFormatException
  - store
```
public void store(java.io.OutputStream stream,
                  java.lang.String comments)
           throws java.io.IOException
```
    See Properties.store(OutputStream, String).
    
    Throws:
    
    java.io.IOException
  - store
```
public void store(java.io.Writer writer,
                  java.lang.String comments)
           throws java.io.IOException
```
    See Properties.store(Writer, String).
    
    Throws:
    
    java.io.IOException
  - storeToXML
```
public void storeToXML(java.io.OutputStream stream,
                       java.lang.String comment)
                throws java.io.IOException
```
    See Properties.storeToXML(OutputStream, String).
    
    Throws:
    
    java.io.IOException
  - storeToXML
```
public void storeToXML(java.io.OutputStream stream,
                       java.lang.String comment,
                       java.lang.String encoding)
                throws java.io.IOException
```
    See Properties.storeToXML(OutputStream, String, String).
    
    Throws:
    
    java.io.IOException
  - list
```
public void list(java.io.PrintStream stream)
```
    See Properties.list(PrintStream).
  - list
```
public void list(java.io.PrintWriter writer)
```
    See Properties.list(PrintWriter).
  - toJdkProperties
```
public java.util.Properties toJdkProperties()
```
    Convert this instance to a Properties instance.
    
    Returns:
    
    the Properties instance
  - equals
```
public boolean equals(java.lang.Object other)
```
    Overrides:
    
    equals in class java.lang.Object
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class java.lang.Object
  - toString
```
public java.lang.String toString()
```
    See Hashtable.toString().
    
    Overrides:
    
    toString in class java.lang.Object
  - copyOf
```
public static OrderedProperties copyOf(OrderedProperties source)
```
    Creates a new instance that will have both the same property entries and the same behavior as the given source.
    Note that the source instance and the copy instance will share the same comparator instance if a custom ordering had been configured on the source.
    
    Parameters:
    
    source - the source to copy from
    
    Returns:
    
    the copy

Class OrderedProperties

Nested Class Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

OrderedProperties

Method Detail

getProperty

getProperty

setProperty

removeProperty

containsProperty

size

isEmpty

propertyNames

stringPropertyNames

entrySet

load

load

loadFromXML

store

store

storeToXML

storeToXML

list

list

toJdkProperties

equals

hashCode

toString

copyOf