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## rice.environment.params.simple
Class SimpleParameters

    java.lang.Object
      rice.environment.params.simple.SimpleParameters

All Implemented Interfaces:
  Parameters

    public class SimpleParameters

extends java.lang.Object
implements Parameters

This class represents a generic Java process launching program which reads in preferences from a preferences file and then invokes another JVM using those prefs. If the launched JVM dies, this process can be configured to restart the JVM any number of times before giving up. This process can also be configured to launch the second JVM with a specified memory allocation, etc...

Author:
  Alan Mislove

Nested Class Summary
`protected class` | `SimpleParameters.MyProperties`

Constructor Summary
`SimpleParameters(java.lang.String[] orderedDefaults, java.lang.String mutableConfigFileName)`

Method Summary
`void` | `addChangeListener(ParameterChangeListener p)`
`boolean` | `contains(java.lang.String name)` See if the parameters contains the key
`java.util.Enumeration` | `enumerateDefaults()`
`java.util.Enumeration` | `enumerateNonDefaults()`
`boolean` | `getBoolean(java.lang.String name)`
`double` | `getDouble(java.lang.String name)`
`float` | `getFloat(java.lang.String name)`
`java.net.InetAddress` | `getInetAddress(java.lang.String name)` String format is dnsname ex: "computer.school.edu"
`java.net.InetSocketAddress` | `getInetSocketAddress(java.lang.String name)` String format is name:port ex: "computer.school.edu:1984"
`java.net.InetSocketAddress[]` | `getInetSocketAddressArray(java.lang.String name)` String format is comma seperated.
`int` | `getInt(java.lang.String name)`
`long` | `getLong(java.lang.String name)`
`protected java.lang.String` | `getProperty(java.lang.String name)`
`java.lang.String` | `getString(java.lang.String name)`
`java.lang.String[]` | `getStringArray(java.lang.String name)`
`protected java.net.InetSocketAddress` | `parseInetSocketAddress(java.lang.String name)`
`void` | `remove(java.lang.String name)` Remove the key
`void` | `removeChangeListener(ParameterChangeListener p)`
`void` | `setBoolean(java.lang.String name, boolean value)`
`void` | `setDouble(java.lang.String name, double value)`
`void` | `setFloat(java.lang.String name, float value)`
`void` | `setInetAddress(java.lang.String name, java.net.InetAddress value)`
`void` | `setInetSocketAddress(java.lang.String name, java.net.InetSocketAddress value)`
`void` | `setInetSocketAddressArray(java.lang.String name, java.net.InetSocketAddress[] value)`
`void` | `setInt(java.lang.String name, int value)`
`void` | `setLong(java.lang.String name, long value)`
`protected void` | `setProperty(java.lang.String name, java.lang.String value)` Note, this method does not implicitly call store()
`void` | `setString(java.lang.String name, java.lang.String value)`
`void` | `setStringArray(java.lang.String name, java.lang.String[] value)`
`void` | `store()` Persistently stores the parameters.

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

Constructor Detail

### SimpleParameters

    public SimpleParameters(java.lang.String[] orderedDefaults,
                            java.lang.String mutableConfigFileName)

Parameters:
  `orderedDefaults` -
  `mutableConfigFileName` - if this is null, no params are saved, if this file doesn't exist, you will get a warning printed to stdErr, then the file will be created if you ever store
Throws:
  `java.io.IOException`

Method Detail

### enumerateDefaults

    public java.util.Enumeration enumerateDefaults()

### enumerateNonDefaults

    public java.util.Enumeration enumerateNonDefaults()

### parseInetSocketAddress

    protected java.net.InetSocketAddress parseInetSocketAddress(java.lang.String name)
                                                         throws java.net.UnknownHostException

  Throws:
    `java.net.UnknownHostException`

### getProperty

    protected java.lang.String getProperty(java.lang.String name)

### setProperty

    protected void setProperty(java.lang.String name,
                               java.lang.String value)

  Note, this method does not implicitly call store()

  Parameters:
    `name` -
    `value` -
  See Also:
    `store()`

### remove

    public void remove(java.lang.String name)

  Description copied from interface: `Parameters`
  Remove the key

  Specified by:
    `remove` in interface `Parameters`

### contains

    public boolean contains(java.lang.String name)

  Description copied from interface: `Parameters`
  See if the parameters contains the key

  Specified by:
    `contains` in interface `Parameters`
  Returns:

### getInt

    public int getInt(java.lang.String name)

  Specified by:
    `getInt` in interface `Parameters`

### getDouble

    public double getDouble(java.lang.String name)

  Specified by:
    `getDouble` in interface `Parameters`

### getFloat

    public float getFloat(java.lang.String name)

  Specified by:
    `getFloat` in interface `Parameters`

### getLong

    public long getLong(java.lang.String name)

  Specified by:
    `getLong` in interface `Parameters`

### getBoolean

    public boolean getBoolean(java.lang.String name)

  Specified by:
    `getBoolean` in interface `Parameters`

### getInetAddress

    public java.net.InetAddress getInetAddress(java.lang.String name)
                                        throws java.net.UnknownHostException

  Description copied from interface: `Parameters`
  String format is dnsname ex: "computer.school.edu"

  Specified by:
    `getInetAddress` in interface `Parameters`
  Returns:
  Throws:
    `java.net.UnknownHostException`

### getInetSocketAddress

    public java.net.InetSocketAddress getInetSocketAddress(java.lang.String name)
                                                    throws java.net.UnknownHostException

  Description copied from interface: `Parameters`
  String format is name:port ex: "computer.school.edu:1984"

  Specified by:
    `getInetSocketAddress` in interface `Parameters`
  Returns:
  Throws:
    `java.net.UnknownHostException`

### getInetSocketAddressArray

    public java.net.InetSocketAddress[] getInetSocketAddressArray(java.lang.String name)
                                                           throws java.net.UnknownHostException

  Description copied from interface: `Parameters`
  String format is comma seperated. ex: "computer.school.edu:1984,computer2.school.edu:1984,computer.school.edu:1985"

  Specified by:
    `getInetSocketAddressArray` in interface `Parameters`
  Returns:
  Throws:
    `java.net.UnknownHostException`

### getString

    public java.lang.String getString(java.lang.String name)

  Specified by:
    `getString` in interface `Parameters`

### getStringArray

    public java.lang.String[] getStringArray(java.lang.String name)

  Specified by:
    `getStringArray` in interface `Parameters`

### setInt

    public void setInt(java.lang.String name,
                       int value)

  Specified by:
    `setInt` in interface `Parameters`

### setDouble

    public void setDouble(java.lang.String name,
                          double value)

  Specified by:
    `setDouble` in interface `Parameters`

### setFloat

    public void setFloat(java.lang.String name,
                         float value)

  Specified by:
    `setFloat` in interface `Parameters`

### setLong

    public void setLong(java.lang.String name,
                        long value)

  Specified by:
    `setLong` in interface `Parameters`

### setBoolean

    public void setBoolean(java.lang.String name,
                           boolean value)

  Specified by:
    `setBoolean` in interface `Parameters`

### setInetAddress

    public void setInetAddress(java.lang.String name,
                               java.net.InetAddress value)

  Specified by:
    `setInetAddress` in interface `Parameters`

### setInetSocketAddress

    public void setInetSocketAddress(java.lang.String name,
                                     java.net.InetSocketAddress value)

  Specified by:
    `setInetSocketAddress` in interface `Parameters`

### setInetSocketAddressArray

    public void setInetSocketAddressArray(java.lang.String name,
                                          java.net.InetSocketAddress[] value)

  Specified by:
    `setInetSocketAddressArray` in interface `Parameters`

### setString

    public void setString(java.lang.String name,
                          java.lang.String value)

  Specified by:
    `setString` in interface `Parameters`

### setStringArray

    public void setStringArray(java.lang.String name,
                               java.lang.String[] value)

  Specified by:
    `setStringArray` in interface `Parameters`

### store

    public void store()
               throws java.io.IOException

  Description copied from interface: `Parameters`
  Persistently stores the parameters.

  Specified by:
    `store` in interface `Parameters`
  Throws:
    `java.io.IOException`

### addChangeListener

    public void addChangeListener(ParameterChangeListener p)

  Specified by:
    `addChangeListener` in interface `Parameters`

### removeChangeListener

    public void removeChangeListener(ParameterChangeListener p)

  Specified by:
    `removeChangeListener` in interface `Parameters`

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