org.apache.openjpa.lib.conf
Class Configurations

java.lang.Object
  org.apache.openjpa.lib.conf.Configurations

public class Configurations
extends Object

Utility methods dealing with configuration.

Author:

Abe White

Constructor Summary

Configurations()

Method Summary

static String	combinePlugins(String orig, String override) Return a plugin string that combines the properties of the given plugin strings, where properties of override will override the same properties of orig.
static void	configureInstance(Object obj, Configuration conf, Properties properties) Configures the given object with the given properties by matching the properties string to the object's setter methods.
static void	configureInstance(Object obj, Configuration conf, Properties properties, String configurationName) Configures the given object with the given properties by matching the properties string to the object's setter methods.
static void	configureInstance(Object obj, Configuration conf, String properties) Configures the given object with the given properties by matching the properties string to the object's setter methods.
static void	configureInstance(Object obj, Configuration conf, String properties, String configurationName) Configures the given object with the given properties by matching the properties string to the object's setter methods.
static boolean	containsProperty(String partialKey, Map props) Test whether the map contains the given partial key, prefixed with any possible configuration prefix.
static String	getClassName(String plugin) Return the class name from the given plugin string, or null if none.
static String	getPlugin(String clsName, String props) Combine the given class name and properties into a plugin string.
static String	getProperties(String plugin) Return the properties part of the given plugin string, or null if none.
static Object	getProperty(String partialKey, Map m) Get the property under the given partial key, prefixed with any possible configuration prefix.
static Object	lookup(String name) Looks up the given name in JNDI.
static Object	newInstance(String clsName, ClassLoader loader) Create the instance with the given class name, using the given class loader.
static Object	newInstance(String clsName, Configuration conf, String props, ClassLoader loader) Create and configure an instance with the given class name and properties.
static Options	parseProperties(String properties) Parse a set of properties from a comma-separated string.
static void	populateConfiguration(Configuration conf, Options opts) Set the given Configuration instance from the command line options provided.
static Object	removeProperty(String partialKey, Map props) Remove the property under the given partial key, prefixed with any possible configuration prefix.
static String	serializeProperties(Map map) Turn a set of properties into a comma-separated string.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Configurations

public Configurations()

Method Detail

getClassName

public static String getClassName(String plugin)

Return the class name from the given plugin string, or null if none.

getProperties

public static String getProperties(String plugin)

Return the properties part of the given plugin string, or null if none.

getPlugin

public static String getPlugin(String clsName,
                               String props)

Combine the given class name and properties into a plugin string.

combinePlugins

public static String combinePlugins(String orig,
                                    String override)

Return a plugin string that combines the properties of the given plugin strings, where properties of override will override the same properties of orig.

newInstance

public static Object newInstance(String clsName,
                                 ClassLoader loader)

Create the instance with the given class name, using the given class loader. No configuration of the instance is performed by this method.

newInstance

public static Object newInstance(String clsName,
                                 Configuration conf,
                                 String props,
                                 ClassLoader loader)

Create and configure an instance with the given class name and properties.

populateConfiguration

public static void populateConfiguration(Configuration conf,
                                         Options opts)

Set the given Configuration instance from the command line options provided. All property names of the given configuration are recognized; additionally, if a properties or p argument exists, the resource it points to will be loaded and set into the given configuration instance. It can point to either a file or a resource name.

configureInstance

public static void configureInstance(Object obj,
                                     Configuration conf,
                                     String properties)

Configures the given object with the given properties by matching the properties string to the object's setter methods. The properties string should be in the form "prop1=val1, prop2=val2 ...". Does not validate that setter methods exist for the properties.

Throws:

RuntimeException - on configuration error

configureInstance

public static void configureInstance(Object obj,
                                     Configuration conf,
                                     String properties,
                                     String configurationName)

Configures the given object with the given properties by matching the properties string to the object's setter methods. The properties string should be in the form "prop1=val1, prop2=val2 ...". Validates that setter methods exist for the properties.

Throws:

RuntimeException - on configuration error

configureInstance

public static void configureInstance(Object obj,
                                     Configuration conf,
                                     Properties properties)

Configures the given object with the given properties by matching the properties string to the object's setter methods. Does not validate that setter methods exist for the properties.

Throws:

RuntimeException - on configuration error

configureInstance

public static void configureInstance(Object obj,
                                     Configuration conf,
                                     Properties properties,
                                     String configurationName)

Configures the given object with the given properties by matching the properties string to the object's setter methods. If configurationName is non-null, validates that setter methods exist for the properties.

Throws:

RuntimeException - on configuration error

serializeProperties

public static String serializeProperties(Map map)

Turn a set of properties into a comma-separated string.

parseProperties

public static Options parseProperties(String properties)

Parse a set of properties from a comma-separated string.

lookup

public static Object lookup(String name)

Looks up the given name in JNDI. If the name is null, null is returned.

containsProperty

public static boolean containsProperty(String partialKey,
                                       Map props)

Test whether the map contains the given partial key, prefixed with any possible configuration prefix.

getProperty

public static Object getProperty(String partialKey,
                                 Map m)

Get the property under the given partial key, prefixed with any possible configuration prefix.

removeProperty

public static Object removeProperty(String partialKey,
                                    Map props)

Remove the property under the given partial key, prefixed with any possible configuration prefix.