Each property has one of eleven property modes, determined in the Rule-Obj-Property rule. This is a permanent feature of a property that cannot be changed after you save a property.
The simplest property mode is Single Value. A Single Value property contains text that can represent HTML, a date or time, an identifier, a number, or a Boolean true/false value. On the clipboard, a Single Value mode corresponds to a Java String object. Properties with this mode can directly correspond to columns in the PegaRULES database. Properties with a mode other than Single Value are known as aggregate properties.
The modes can be viewed as variations of three types:
|  | Single | Array or List | Group | 
| Value modes | 
 
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| Page modes | 
 
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| Java Object mode | 
 
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| Java Property modes | 
 
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The standard property Rule-Obj-Property.pyPropertyMode holds the mode of a property.