Class PredicateCondition

java.lang.Object

cloud.opencode.base.rules.condition.PredicateCondition

All Implemented Interfaces:

Condition

public class PredicateCondition
extends Object
implements Condition

Predicate Condition - Condition Based on Java Predicate 谓词条件 - 基于Java谓词的条件

Wraps a Java Predicate as a rule condition for flexible condition definition.

将Java谓词包装为规则条件，以便灵活定义条件。

Features | 主要功能:

• Predicate-to-Condition adapter - 谓词到条件的适配器
• Lambda-friendly API - Lambda友好的API
• Factory method support - 工厂方法支持

Usage Examples | 使用示例:

Condition condition = new PredicateCondition(
    ctx -> ctx.<Integer>get("age") >= 18
);

Security | 安全性:

• Thread-safe: No (depends on predicate) - 线程安全: 否（取决于谓词）
• Null-safe: No (predicate must not be null) - 空值安全: 否（谓词不能为null）

Since:

JDK 25, opencode-base-rules V1.0.0

Author:

Leon Soo www.LeonSoo.com

See Also:

• OpenCode.cloud

Constructor Summary

Constructors

Constructor	Description
PredicateCondition(Predicate<RuleContext> predicate)	Creates a predicate condition 创建谓词条件

Method Summary

Modifier and Type	Method	Description
boolean	evaluate(RuleContext context)	Evaluates this condition against the given context 针对给定上下文评估此条件
static PredicateCondition	of(Predicate<RuleContext> predicate)	Creates a predicate condition from a predicate 从谓词创建谓词条件

Methods inherited from class Object

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

Methods inherited from interface Condition

and, negate, or

Constructor Details

PredicateCondition

public PredicateCondition(Predicate<RuleContext> predicate)

Creates a predicate condition 创建谓词条件

Parameters:

predicate - the predicate | 谓词

Method Details

evaluate

public boolean evaluate(RuleContext context)

Description copied from interface: Condition

Evaluates this condition against the given context 针对给定上下文评估此条件

Specified by:

evaluate in interface Condition

Parameters:

context - the rule context | 规则上下文

Returns:

true if the condition is satisfied | 如果条件满足返回true

of

public static PredicateCondition of(Predicate<RuleContext> predicate)

Creates a predicate condition from a predicate 从谓词创建谓词条件

Parameters:

predicate - the predicate | 谓词

Returns:

the condition | 条件