Package org.jppf.node.policy

Class BetweenIE

java.lang.Object

org.jppf.node.policy.ExecutionPolicy

org.jppf.node.policy.BetweenIE

All Implemented Interfaces:

Serializable

public class BetweenIE
extends ExecutionPolicy

An execution policy rule that encapsulates a test of type a <= property_value_or_expression < b. The test applies to numeric 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

Modifier and Type	Field	Description
protected Expression<Double>	a	The interval's lower bound.
protected Expression<Double>	b	The interval's upper bound.

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

children

Constructor Summary

Constructors

Constructor	Description
BetweenIE(String propertyNameOrExpression, double a, double b)	Define a comparison of type value between a and b with a included and b excluded.
BetweenIE(String propertyNameOrExpression, double a, String b)	Define a comparison of type value between a and b with a included and b excluded.
BetweenIE(String propertyNameOrExpression, String a, double b)	Define a comparison of type value between a and b with a included and b excluded.
BetweenIE(String propertyNameOrExpression, String a, String b)	Define a comparison of type value between a and b with a included and b excluded.

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

Field Details

a

protected Expression<Double> a

The interval's lower bound.

b

protected Expression<Double> b

The interval's upper bound.

Constructor Details

BetweenIE

public BetweenIE(String propertyNameOrExpression,
 double a,
 double b)

Define a comparison of type value between a and b with a included and b excluded.

Parameters:

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

a - the lower bound.

b - the upper bound.

BetweenIE

public BetweenIE(String propertyNameOrExpression,
 String a,
 double b)

Define a comparison of type value between a and b with a included and b excluded.

Parameters:

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

a - the lower bound expression.

b - the upper bound.

BetweenIE

public BetweenIE(String propertyNameOrExpression,
 double a,
 String b)

Define a comparison of type value between a and b with a included and b excluded.

Parameters:

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

a - the lower bound.

b - the upper bound expression.

BetweenIE

public BetweenIE(String propertyNameOrExpression,
 String a,
 String b)

Define a comparison of type value between a and b with a included and b excluded.

Parameters:

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

a - the lower bound expression.

b - the upper bound expression.

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.