Package com.helixframework.rules.rule.java.dsl

Class DSLRule<U,V>

java.lang.Object

com.helixframework.rules.rule.BaseRule

com.helixframework.rules.rule.java.JavaRule

com.helixframework.rules.rule.java.dsl.DSLRule<U,V>

All Implemented Interfaces:

Rule

public abstract class DSLRule<U,V>
extends JavaRule

DSLRule which returns an executable Action if one or more Conditions are met.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	DSL_RULE_INPUT
static final String	DSL_RULE_OUTPUT

Fields inherited from interface com.helixframework.rules.rule.Rule

DEFAULT_MAX_RETRIES, DEFAULT_TIMEOUT

Constructor Summary

Constructors

Constructor	Description
DSLRule(JavaRuleConfig config, Set<? extends Condition<U,V>> conditionSet)	Creates a new instance of DSLRule.

Method Summary

Modifier and Type	Method	Description
protected void	applyInternal(RuleContext<?> ctx)	Applies a rule context across a Condition set.
protected <T> T	applyInternal(RuleContext<?> ctx, Class<T> outputType)	Unused as we store the result in the RuleContext itself.
Set<? extends Condition<U,V>>	getConditionSet()	Returns the conditionSet.

Methods inherited from class com.helixframework.rules.rule.java.JavaRule

getType, toString

Methods inherited from class com.helixframework.rules.rule.BaseRule

apply, apply, apply, apply, getClassification, getDependencies, getDescription, getMaxRetries, getName, getTags, getTimeout

Methods inherited from class java.lang.Object

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

Field Details

DSL_RULE_INPUT

public static final String DSL_RULE_INPUT

See Also:

• Constant Field Values

DSL_RULE_OUTPUT

public static final String DSL_RULE_OUTPUT

See Also:

• Constant Field Values

Constructor Details

DSLRule

public DSLRule(JavaRuleConfig config,
 Set<? extends Condition<U,V>> conditionSet)

Creates a new instance of DSLRule.

Parameters:

config - java rule configuration

conditionSet - DSL rule condition set

Method Details

applyInternal

protected void applyInternal(RuleContext<?> ctx)

Applies a rule context across a Condition set. If a match is found, stores a lazy execution in DSL_RULE_INPUT. The realized lazy execution result will be stored in DSL_RULE_OUTPUT.

Specified by:

applyInternal in class BaseRule

Parameters:

ctx - rule context

applyInternal

protected <T> T applyInternal(RuleContext<?> ctx,
 Class<T> outputType)

Unused as we store the result in the RuleContext itself.

Specified by:

applyInternal in class BaseRule

Type Parameters:

T - type of rule output

Parameters:

ctx - rule context

outputType - type of rule output

Returns:

rule result

getConditionSet

public Set<? extends Condition<U,V>> getConditionSet()

Returns the conditionSet.

Returns:

conditionSet