org.zkoss.zul.impl

Class Utils

java.lang.Object

org.zkoss.zul.impl.Utils

public class Utils
extends Object

A collection of utilities.

Author:

tomyeh

Constructor Summary

Constructors

Constructor and Description
Utils()

Method Summary

Methods

Modifier and Type	Method and Description
static String	arrayToString(Object[] ary) Converts an array of objects to a string, by concatenating them together and separated with comma.
static org.zkoss.zk.ui.Component	getComponentById(org.zkoss.zk.ui.Component comp, String id) Returns the component of the specified ID or UUID.
static String	getDynamicMediaURI(org.zkoss.zk.ui.AbstractComponent comp, int version, String name, String format) Returns the encoded URL for the dynamic generated content, or empty the component doesn't belong to any desktop.
static int	getIntAttribute(org.zkoss.zk.ui.Component comp, String name, int defValue, boolean recurse) Returns the number if the given attribute is defined in a component or in library property.
static String	intsToString(int[] ary) Converts an array of numbers to a string.
static String	outFeature() Generates the ZK feature information
static String	outLocaleJavaScript() Generates the locale-dependent JavaScript codes, such as messages (msgzul).
static void	renderCrawlableA(String href, String label) Render the crawlable HTML A tag.
static void	renderCrawlableText(String text) Render the crawlable text.
static String[]	stringToArray(String src, String defaultValue) Parse a list of numbers.
static int[]	stringToInts(String numbers, int defaultValue) Parse a list of numbers.
static boolean	testAttribute(org.zkoss.zk.ui.Component comp, String name, boolean defValue, boolean recurse) Tests if the given attribute is defined in a component or in library property.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Utils

public Utils()

Method Detail

stringToInts

public static final int[] stringToInts(String numbers,
                 int defaultValue)
                                throws org.zkoss.zk.ui.WrongValueException

Parse a list of numbers.

Parameters:

defaultValue - the value if a number is omitted. For example, ",2" means "1,2" if defafultValue is 1

Returns:

an array of int, or null if no integer at all

Throws:

org.zkoss.zk.ui.WrongValueException

intsToString

public static final String intsToString(int[] ary)

Converts an array of numbers to a string.

stringToArray

public static final String[] stringToArray(String src,
                     String defaultValue)

Parse a list of numbers.

Parameters:

defaultValue - the value used if an empty string is fund. For example, ",2" means "1,2" if defafultValue is "1"

Returns:

an array of string, or null if no data at all

arrayToString

public static final String arrayToString(Object[] ary)

Converts an array of objects to a string, by concatenating them together and separated with comma.

getDynamicMediaURI

public static String getDynamicMediaURI(org.zkoss.zk.ui.AbstractComponent comp,
                        int version,
                        String name,
                        String format)

Returns the encoded URL for the dynamic generated content, or empty the component doesn't belong to any desktop.

Since:

3.0.2

outFeature

public static final String outFeature()

Generates the ZK feature information

Since:

6.5.1

outLocaleJavaScript

public static final String outLocaleJavaScript()

Generates the locale-dependent JavaScript codes, such as messages (msgzul).

It is called by zul/lang/zk.wpd.

renderCrawlableA

public static void renderCrawlableA(String href,
                    String label)
                             throws IOException

Render the crawlable HTML A tag. If crawlable is not enabled or href is empty, nothing is generated.

Parameters:

href - the hyper link. If null or empty, nothing is generated.

label - the label to show. Empty is assumed if null.

Throws:

IOException

Since:

5.0.0

renderCrawlableText

public static void renderCrawlableText(String text)
                                throws IOException

Render the crawlable text. If crawlable is not enabled or the text is empty, nothing is generated.

Parameters:

text - the text that is crawlable. If null or empty, nothing is generated.

Throws:

IOException

Since:

5.0.0

getComponentById

public static org.zkoss.zk.ui.Component getComponentById(org.zkoss.zk.ui.Component comp,
                                         String id)

Returns the component of the specified ID or UUID. ID could be the component's ID or UUID. To specify an UUID, it must be the format: uuid(comp_uuid).

Returns:

the component, or null if not found

Since:

5.0.4

testAttribute

public static final boolean testAttribute(org.zkoss.zk.ui.Component comp,
                    String name,
                    boolean defValue,
                    boolean recurse)

Tests if the given attribute is defined in a component or in library property.

Parameters:

name - the name of the attribute

defValue - the default value if neither component's attribute or library property is defined for the given name

recurse - whether to look up the ancestor's attribute

Since:

5.0.7

getIntAttribute

public static final int getIntAttribute(org.zkoss.zk.ui.Component comp,
                  String name,
                  int defValue,
                  boolean recurse)

Returns the number if the given attribute is defined in a component or in library property.

Parameters:

name - the name of the attribute

defValue - the default value if neither component's attribute or library property is defined for the given name

recurse - whether to look up the ancestor's attribute

Since:

5.0.8