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package org.kuali.rice.krms.framework.engine; |
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import java.util.List; |
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import org.kuali.rice.krms.api.ExecutionEnvironment; |
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import org.kuali.rice.krms.api.Rule; |
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public class AgendaTree { |
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private List<Rule> rules; |
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private AgendaTree ifTrue; |
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private AgendaTree ifFalse; |
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private AgendaTree afterAgenda; |
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| 15 | 0 | public AgendaTree(List<Rule> rules, AgendaTree ifTrue, AgendaTree ifFalse, AgendaTree afterAgenda) { |
| 16 | 0 | this.rules = rules; |
| 17 | 0 | this.ifTrue = ifTrue; |
| 18 | 0 | this.ifFalse = ifFalse; |
| 19 | 0 | this.afterAgenda = afterAgenda; |
| 20 | 0 | if (rules.isEmpty()) { |
| 21 | 0 | throw new IllegalArgumentException("The rule list must contain at least one rule, but list is empty."); |
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} |
| 23 | 0 | } |
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public void execute(ExecutionEnvironment environment) { |
| 26 | 0 | boolean lastRuleResult = true; |
| 27 | 0 | for (Rule rule : rules) { |
| 28 | 0 | lastRuleResult = rule.evaluate(environment); |
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} |
| 30 | 0 | if (lastRuleResult && ifTrue != null) { |
| 31 | 0 | ifTrue.execute(environment); |
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} |
| 33 | 0 | if (!lastRuleResult && ifFalse != null) { |
| 34 | 0 | ifFalse.execute(environment); |
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} |
| 36 | 0 | if (afterAgenda != null) { |
| 37 | 0 | afterAgenda.execute(environment); |
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} |
| 39 | 0 | } |
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} |