public enum FieldRelation extends Enum<FieldRelation>
public static final FieldRelation AND
public static final FieldRelation OR
public static final FieldRelation NOT
public static FieldRelation[] values()
for (FieldRelation c : FieldRelation.values()) System.out.println(c);
public static FieldRelation valueOf(String name)
name - 要返回的枚举常量的名称。IllegalArgumentException - 如果该枚举类型没有带有指定名称的常量NullPointerException - 如果参数为空值public String value()
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