See also: LiveTemplate, LiveTemplateWritingTips
== Surround With Live Template.==>
1°/ select the text between [ and ], or place the cursor at the | (to select the whole line).
2°/ Press [Ctlr-Alt-J]
before:
File file = ...
[msg += file.toString() ;]
after:
File file = ...
if (null != file){
msg += file.toString() ;
}
To install : insert this snippet into your user.xml.
-- AlainRavet (top)
Before:
Titi|
After:
Titi titi = new Titi()|;
Note:
If the class Titi does not exist yet : press [Alt-Enter].
To use : Press [Alt-Ctrl-J]
To install : insert this snippet into your user.xml.
-- AlainRavet (top)
Before:
String str = cast|
After:
String str = (String) |
To install, simply create template ($TYPE$) $END$, and Edit Variables, specifying the expression expectedValue() for the variable TYPE
I suggest binding this to the Space key, so you type String str = cast value;, which makes sense, since you want value to be casted.
-- KeithLea (top)
A very simple way to know the time spent in some chosen parts of your code.
Accuracy is as good as System.currentTimeMillis() can get.
-- AlainRavet (top)
This is just a simple template to get the page started. It is a simple generic for loop, as opposed to the "built-in" templates which iterate over a given collection or array of objects.
for (int $var$=0; $var$ < $limit$; $var$++)
{
$END$
}
Template code: JonasKvarnstrom-for.xml: Simple for loop template
-- JonasKvarnstrom - 01 Jun 2002 (top)
This iterates through a DOM NodeList, for use when dealing with XML-formatted documents. Make sure to use the XML snippet or set up the variable options appropriately!
for (int $INDEX$ = 0; $INDEX$ < $NODE_LIST$.getLength(); $INDEX$++) {
$ELEMENT_TYPE$ $VAR$ = ($ELEMENT_TYPE$)$NODE_LIST$.item($INDEX$);
$END$
}
Template snippet: WalterMundt-itnl.xml
-- WalterMundt - 11 Jun 2002
An addendum to the above: if you are iterating through the children of a DOM Node, you might be tempted to call node.getChildNodes() to get a NodeList and iterate as above. This is rather inefficient in most DOM implementations; first you pay the cost to create the list, and then you are locked into calling nodeList.item(), which means the whole operation could take you as much as O(n*n). Instead, use the first child and next sibling accessors like so:
for (Node $NODEVAR$ = $PARENTNODE$.getFirstChild(); $NODEVAR$ != null; $NODEVAR$ = $NODEVAR$.getNextSibling()) {
$END$
}
-- OliverS - 19 Mar 2003
before :
String s = "one[two]three" ;
after :
String s = "one"+"two"+"three" ;
| Template text | "+"$SELECTION$$END$"+" |
| Context | Java String |
-- AlainRavet (top)
NOTE: As of build 635, this is now handled internally by IDEA.
before:
String s = "select field1, field2, field3 |from table";
keystroke:
/[Enter]
after:
String s = "select field1, field2, field3 " +
"|from table";
| Template text | " +
"$END$ |
| Context | Java String |
| Expand with | Enter |
| Abbreviation | / |
-- BryanYoung (top)
before:
String s = "hello, +|, come in!";
keystroke:
Tab (the '+' activates the template)
after:
String s = "hello," + | + ", come in!";
| Template text | " + $END$ + " |
| Context | Java String |
| Expand with | Tab |
| Abbreviation | + |
-- BenPickering? (top)
See also TestPractices.
public void test_newTestToImplement () {
fail ( "implemente me: test_newTestToImplement " );
}
Template text:
public void test$expr$ () throws Exception {
fail ("implemente me: test$expr$") ;
}
| Context | Java Code |
| Options | Reformat & Shorten |
-- AlainRavet (top)
public static Test suite() {
TestSuite suite= new TestSuite();
add tests to suite here
return suite;
}
Template text:
public static Test suite() {
TestSuite suite= new TestSuite();
$END$
return suite;
}
| Context | Java Code |
| Options | Reformat & Shorten |
-- AlexeyEpishkin (top)
suite.addTest(new MoneyTest("testEquals"));
Template text:
$SUITE$.addTest(new $TEST_CASE$("test$END$"));
| Name | Expression |
| $SUITE$ | variableOfType("junit.framework.TestSuite") |
| $TEST_CASE$ | className() |
| Context | Java Code |
| Options | Reformat & Shorten |
-- AlexeyEpishkin (top)
After creating a class that extends a junit TestCase, use this template, to create the constructor, a static suite method and a static main method. Insert the following xml into your user.xml file.
To install : insert this snippet into your user.xml.
-- BrianMajewski - 10 Jun 2002 (top)
See Also: CanonicizerDoclet
Insert this code snippet in your object and you get "canonical" behavior.
Note that the equals method is not reflexive if used with polymorphic
classes (Joshua Bloch mentioned that in his book)
Feel free to comment 
public String toString() {
try {
StringBuffer sb = new StringBuffer(super.toString());
Field[] fields = this.getClass().getDeclaredFields();
for (int i = 0; i < fields.length; i++) {
sb.append("").append(fields[i].getName()).append("=").append(fields[i].get(this)).append(";");
}
return sb.toString();
} catch (Exception e) {
throw new RuntimeException(e.toString());
}
}
public int hashCode() {
int h = super.hashCode();
try {
Field[] fields = this.getClass().getDeclaredFields();
for (int i = 0; i < fields.length; i++) {
h = h*37 + fields[i].get(this).hashCode();
}
} catch (Exception e) {
throw new RuntimeException(e.toString());
}
return h;
}
public boolean equals(Object obj) {
if (!super.equals(obj)) return false;
if (!this.getClass().isAssignableFrom(obj.getClass())) return false;
try {
Field[] fields = this.getClass().getDeclaredFields();
for (int i = 0; i < fields.length; i++) {
Field field = fields[i];
if (field.get(this).equals(field.get(obj))) return false;
}
return true;
} catch (Exception e) {
throw new RuntimeException(e.toString());
}
}
-- DimiterD - 03 Jun 2002 (top)
Creation of an EJB remote Home object
This is a one-line LiveTemplate I use to instantiate remote EJB Home objects created by XDoclet (see the XDoclet home page) so I only have to type the type name once.
$TYPE$ $VAR$ = ($TYPE$)PortableRemoteObject.narrow($CONTEXT$.lookup($TYPE$.COMP_NAME), $TYPE$.class);
Options:
- VAR - suggestVariableName()
- TYPE - defaults to "Home"
- CONTEXT - variableOfType("InitialContext"), defaults to "(new InitialContext())"
-- WalterMundt - 03 Jun 2002 (top)
Boilerplate code for a Singleton. The ClassName is derived from the context.
private static ClassName instance = new ClassName();
private ClassName() {
}
public static ClassName getInstance() {
return instance;
}
To install : insert this snippet into your user.xml.
-- BrianMajewski - 10 Jun 2002 (top)
Create add-, remove- and get methods for private Collections.
To install : insert this snippet into your user.xml.
--by JuergenRichtsfeld
Setups an implementation of the listener pattern given an user-defined listener-interface
private List<$ListenerClass$> $listenerClass$s = new ArrayList<$ListenerClass$>();
/** Adds a new listener. */
public void add$ListenerClass$($ListenerClass$ l) {
if (l == null) {
return;
}
$listenerClass$s.add(l);
}
/** Removes a listener. */
public void remove$ListenerClass$($ListenerClass$ l) {
if (l == null) {
return;
}
$listenerClass$s.remove(l);
}
To install : insert this snippet into your user.xml.
--by Watzlaw Wutz
Boilerplate code for a Type-safe Enumeration as an inner class. The Variables are all user-entered.
/**
* This implements a type-safe enum pattern.
* @author <a hr3f="$AUTHOR_EMAIL$">$AUTHOR_NAME$</a>
*/
public static final class $ENUM_NAME$ implements Serializable, Comparable {
private static int nextOrdinal = 0;
private static List TEMP_VALUES = new ArrayList();
// Add all of your enum values here
public static final $ENUM_NAME$ $EXAMPLE1$ = new $ENUM_NAME$("$EXAMPLE1$");
public static final $ENUM_NAME$ $EXAMPLE2$ = new $ENUM_NAME$("$EXAMPLE2$");
public static final $ENUM_NAME$ $EXAMPLE3$ = new $ENUM_NAME$("$EXAMPLE3$");
public static final $ENUM_NAME$ $EXAMPLE4$ = new $ENUM_NAME$("$EXAMPLE4$");
public static final $ENUM_NAME$ $EXAMPLE5$ = new $ENUM_NAME$("$EXAMPLE5$");
// VALUES must be located after all of the enum value declarations
// otherwise the values will only be added to TEMP_VALUES
public static final List VALUES = Collections.unmodifiableList(TEMP_VALUES);
private transient final String name;
public final int ordinal = nextOrdinal++;
/**
* Private contructor for type-safe enumeration
* @param name
*/
private $ENUM_NAME$(String name) {
this.name = name;
TEMP_VALUES.add(this);
}
public String toString() {
return this.name;
}
public int compareTo(Object obj) {
return this.ordinal - (($ENUM_NAME$) obj).ordinal;
}
private static final long serialVersionUID = 0l;
private Object readResolve() throws ObjectStreamException {
return VALUES.get(ordinal);
}
public int getOrdinal(){
return this.ordinal;
}
}
To install : insert this snippet into your user.xml.
-- BrianJackson - 19 Feb 2004 (top)
JSP
This Helper make aesy use of request.getParameter for WEB development
String $NAME$ = request.getParameter("$PARAMETER_NAME$");
$END$
NAME = suggestVariableName()
PARAMETER_NAME = NAME
This Helper make aesy use of request.getParameterValues for WEB development
String[] $NAME$ = request.getParameterValues("$PARAMETER_NAME$");
$END$
NAME = suggestVariableName()
PARAMETER_NAME = NAME
-- AlexeyEfimov - 23 Aug 2002
LOGGING
These helpers make adding a wrapped logging statement easier.
Example for debug:
if($VAR$.isDebugEnabled()) {
$VAR$.debug("");
}
VAR = varableOfType(""), defaults to "log"
-- BrianKrisler - 02 Nov 2002
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