Description
Converts a ColdFusion array, CFC, DateTime object, Java object, query, or structure into a serializable binary object and optionally saves the object in a file.
Returns
A serializable binary representation of the object.
ObjectSave(object[, filePath])
See also
Parameters
Parameter |
Description |
|---|---|
object |
The complex object, such as a query or CFC, that will be serialized. |
filePath |
The path of the file in which to save the serialized data. |
Usage
This function is useful for handling dynamic data that has a relatively long period of usefulness and takes substantial time or resources to obtain. It lets you save the data in a file and use it in multiple application instances. For example, you can create a CFC that stores a query that takes long time to run and retrieves infrequently updated data. If you use the ObjectSave function to initially save the CFC as a file, and deserialize the CFC file on future application starts, you can improve application performance.
Example
<h3>Saving and loading an object</h3>
<!--- Create the component object. --->
<cfobject component="tellTime" name="tellTimeObj">
<!--- Save the component object to a file. --->
<cfset ObjectSave(tellTimeObj, "data.out")/>
<!--- Load the component object again. --->
<cfset ObjLoaded = ObjectLoad("data.out") >
<!--- Invoke the methods from loaded objects. --->
<cfinvoke component="#ObjLoaded#" method="getLocalTime" returnvariable="localTime">
<cfinvoke component="#ObjLoaded#" method="getUTCTime" returnvariable="UTCTime">
<!--- Display the results. --->
<h3>Time Display Page</h3>
<cfoutput>
Server's Local Time: #localTime#<br>
Calculated UTC Time: #UTCTime#
</cfoutput>
Note:
ColdFusion skips any object that does not support serialization.
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