This document summarizes new features in the ColdFusion language, including syntax enhancements like new operators, implicit struct and array creation, attribute collection passing, multi-threading with cfthread, CFC enhancements like interfaces and serialization, file I/O improvements, cfzip for working with zip files, cfdump changes, secure cfftp, and more. It is presented by Rupesh Kumar on June 27, 2007.

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Language
Enhancements
Rupesh Kumar
Computer Scientist
June 27, 2007

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Agenda
 Syntax enhancements
 CFC Enhancements
 Multi-Threading
 New File I/O
 Application.cfc
 cfdump enhancement
 Secure ftp
 Misc
 cfzip
 Cffeed
 cfobject changes
 cfdbinfo

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Syntax Enhancement
 cfscript operators
 Now ++, --, +=, -=, /=, *=, ==, >=, <=, <>, &= available in cfscript
 Implicit struct and array creation
 <cfset a={key1="value1", key2=expression}>
 <cfset a=[expression1, innerstruct1, innerarray1, literal]>
 Nested array and struct not yet supported

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attributeCollection
 Instead of passing tag attributes, pass a struct to tags
 Conditional tag attributes
 Example TBD

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New File I/O
 Reading large files
 cfloop tag
 FileReadXXX functions
<cfloop file="temp.txt" from=5 to=10 index="myline">
<cfoutput>#myline#</cfoutput>
</cfloop>
<cfscript>
myfile =
FileOpen("c:tempmyfile.txt","read");
while(NOT isEOF(myfile))
x = FileReadLine(myfile); // read line
FileClose(myfile);
</cfscript>

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FileXXX functions

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CFTHREAD
 Allow cf page to launch threads
 for example fetch result of a web service
 Create, join, sleep, terminate
 Thread local scope
 Any variable with var or with no scope inside cfthread tag
 THREAD scope
 Contains thread-specific variables and metadata about the thread
 Owner can write, anyone can read
 Attributes scope
 Passed to the thread by value
 Server, Session, Request, and Client scopes shared with the launching page

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CFTHREAD – Example
<cfloop query="dir">
<cfset threadname = "thread_" & #i#>
<cfset i=i+1>
<cfthread name="#threadname#" filename="#dir.name#">
<!--- Declare local variable--->
<cfset localVar = “Only for thread”>
<cffile action="COPY" source="#src##filename#"
destination="#dest##filename#">
<!--- Set variable in THREAD scope --->
<cfset THREAD.readOutside = “sure”>
</cfthread>
</cfloop>
<!--- Access THREAD scope outside --->
<cfset reading=thread_1.readOutside>

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CFC Enhancements
 Interface
 Serialization
 Duplicate
 onMissingMethod
 Metadata

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CFC Interfaces
<!--- EventListener interface --->
<cfinterface>
<cffunction name=“handleEvent”>
<cfargument name=“event” type=“struct”
required=“true”>
</cffunction>
</cfinterface>
<!--- EventHandler component --->
<cfcomponent implements=“EventListener”>
<cffunction name=“handleEvent”>
<cfargument name=“event” type=“struct”
required=“true>
<!--- implementation code here --->
</cffunction>
</cfcomponent>

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CFC serialization
 CFC stored in the session can be retrieved back from the session
 when a session failover happens in a ColdFusion cluster
 Struct & arrays in session scope also supported
 CFC referencing a CFC also supported

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CFC Duplicate
 Also used in cfthread when cfc is passed
 TBD

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OnMissingMethod

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Metadata
 getComponentMetadata
 TBD

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Application.cfc changed
 onMissingTemplate
 Per app settings

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onMissingTemplate
 This function is invoked on file not found condition
 No other handlers are invoked
 Rules
 TBD, lot of discussion on forums

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Per app settings
 Mappings
 Custom tag paths
 Via THIS scope in Application.cfc
 Overrides server wide settings in Administrator
<cfset THIS.mappings["MyMap"]="c:inetpubmyStuff">
<cfset THIS.customtagpaths = "c:mapped1,c:mapped2">

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DB Features
 Support for DataDirect v3.6 drivers
 Auto-generated key retrieval
 Transaction savepoints
 <cftransaction action="setsavepoint" savepoint="pointA" />
 Split neo-query.xml into neo-drivers.xml, neo-datasources.xml
 CFDBINFO tag
 Fetch tables, database names, stored procedures in a data source
 Columns, indexes, primary keys, foreign keys in a table
<cfdbinfo type="tables“ datasource=“dsn“
dbname="databasename“
pattern="pattern“
username="username1“ password="password1“
name="resultname">

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CFDUMP
 Show the first 'n' keys of a structure
 Show or hide query colums or structure keys
 Include SQL and other metadata when dumping query objects
<cfdump
var = "#variable#"
expand = "yes" or "no"
label = "text"
top = "number of rows or levels"
show = "columns or keys"
hide = "columns or keys"
keys = "number of keys to display for structures"
output = "browser or console or file"
showUDFs = "yes or no"
>

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Secure CFFTP
 Supports FTP over SSH2 protocol
<cfftp
action = "action"
username = "name"
password = "password"
fingerprint = "hh:hh:hh:hh:hh:hh:hh:hh"
key = "absolute path of the private key"
paraphrase = "paraphrase of the private key"
server = "server"
timeout = "timeout in seconds"
port = "port"
connection = "name"
proxyServer = "proxy server"
retryCount = "number"
stopOnError = "yes" or "no"
secure = "yes"
result = "result_name“
>

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PrecisionEvaluate
 Uses BigDecimal arithmetic
 TBD

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CFZIP
 Support manipulation of ZIP & JAR files
 Create, extract, delete, list and update action on the zip entries
<cfzip file="E:workabc.zip" source="c:temp" />
<cfzip file="E:worktest.zip" action="zip">
<cfzipparam source="c:tempabc.txt"
prefix="comabc">
<cfzipparam source="c:srcclasses" recurse="true"
filter="*.class,*.properties"
prefix="classes">
<cfzipparam source="c:srcManifest.MF"
entrypath="META-INFMANIFEST">
</cfzip>

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CFFEED
 Read all flavours of RSS and Atom feeds.
 Create RSS 2.0 and Atom 1.0 feeds.
 Support for enclosures
 Support for iTunes & Dublin Core
 Convert feed from/to RSS and ATOM
 Demo

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