Package org.jppf.node.policy

Class RegExp

java.lang.Object

org.jppf.node.policy.ExecutionPolicy

org.jppf.node.policy.RegExp

All Implemented Interfaces:

Serializable

public class RegExp
extends ExecutionPolicy

An execution policy rule that encapsulates a test of type property_value matches regular_expression. The expression syntax must follow the one specified for Pattern. The test applies to string values only.

Author:

Laurent Cohen

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.jppf.node.policy.ExecutionPolicy

ExecutionPolicy.AndRule, ExecutionPolicy.NotRule, ExecutionPolicy.OrRule, ExecutionPolicy.XorRule

Field Summary

Fields inherited from class org.jppf.node.policy.ExecutionPolicy

children

Constructor Summary

Constructors

Constructor	Description
RegExp(String propertyNameOrExpression, String regExp)	Define an equality comparison between the string value of a property and another string value.

Method Summary

Modifier and Type	Method	Description
boolean	accepts(PropertiesCollection<String> info)	Determines whether this policy accepts the specified node.
protected Object	getLeftOperandValue(PropertiesCollection<String> properties)
String	toString(int n)	Get an xml string representation of this policy with the specified starting indentation level.

Methods inherited from class org.jppf.node.policy.ExecutionPolicy

and, and, andNot, andNot, checkRules, evaluate, getChildren, getContext, getProperty, indent, negate, not, Not, or, or, orNot, orNot, setContext, setContext, tagEnd, tagStart, toString, toXML, xmlElement, xmlElement, xor, xor

Methods inherited from class java.lang.Object

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

Constructor Details

RegExp

public RegExp(String propertyNameOrExpression,
 String regExp)
       throws PatternSyntaxException

Define an equality comparison between the string value of a property and another string value.

Parameters:

propertyNameOrExpression - either a literal string which represents a property name, or an expression resolving to a numeric value.

regExp - a regular expression to match the property value against.

Throws:

PatternSyntaxException - if the syntax of expression is invalid

Method Details

accepts

public boolean accepts(PropertiesCollection<String> info)

Determines whether this policy accepts the specified node.

Specified by:

accepts in class ExecutionPolicy

Parameters:

info - system information for the node on which the tasks will run if accepted.

Returns:

true if the node is accepted, false otherwise.

toString

public String toString(int n)

Description copied from class: ExecutionPolicy

Get an xml string representation of this policy with the specified starting indentation level.

Specified by:

toString in class ExecutionPolicy

Parameters:

n - the size of the indent to startwith.

Returns:

an indented string depending on the value of toStringIndent.

getLeftOperandValue

protected Object getLeftOperandValue(PropertiesCollection<String> properties)

Parameters:

properties - the proeprties collection to evaluate against.

Returns:

the typed value of the left operand expression.