org.rhq.enterprise.server.configuration
Class PropertyExpressionEvaluator

java.lang.Object
  org.rhq.enterprise.server.configuration.PropertyExpressionEvaluator

public class PropertyExpressionEvaluator
extends Object

Translates the configuration property value lookup key into a named query in the system.

Author:

Jason Dobies

See Also:

DynamicConfigurationPropertyBean

Field Summary

static String	KEY_PACKAGE_ARCHITECTURES
static String	KEY_PACKAGE_TYPES
static String	KEY_RESOURCE_TYPE_PLUGIN
static String	KEY_ROLES
static String	KEY_USERS

Constructor Summary

PropertyExpressionEvaluator()

Method Summary

static String

getQueryNameForKey(String key) Returns the name of the query to use to retrieve the configuration values for properties defined with the given key.

Methods inherited from class java.lang.Object

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

Field Detail

KEY_USERS

public static final String KEY_USERS

See Also:

Constant Field Values

KEY_ROLES

public static final String KEY_ROLES

See Also:

Constant Field Values

KEY_PACKAGE_TYPES

public static final String KEY_PACKAGE_TYPES

See Also:

Constant Field Values

KEY_RESOURCE_TYPE_PLUGIN

public static final String KEY_RESOURCE_TYPE_PLUGIN

See Also:

Constant Field Values

KEY_PACKAGE_ARCHITECTURES

public static final String KEY_PACKAGE_ARCHITECTURES

See Also:

Constant Field Values

Constructor Detail

PropertyExpressionEvaluator

public PropertyExpressionEvaluator()

Method Detail

getQueryNameForKey

public static String getQueryNameForKey(String key)

Returns the name of the query to use to retrieve the configuration values for properties defined with the given key. Each query referenced by the return result should only return a list of String objects, not any form of complex object (such as Resource or Subject).

Parameters:

key - plugin writer specified key to indicate what values to look up; this should be one of the KEY_* values defined in this class.

Returns:

name of a named query, where the query is defined elsewhere; null if the key is not supported by the system