org.zkoss.util.resource.impl
Interface LabelLoader

All Known Implementing Classes:

LabelLoaderImpl

public interface LabelLoader

The label loader interface. Used to implement for Labels.

Notice that the encoding of the Locale dependent file (*.properties) is assumed to be UTF-8. If it is not the case, please refer to ZK Configuration Reference for more information.

Specify the library property of org.zkoss.util.resource.LabelLoader.class in zk.xml to provide a customized label loader for debugging purpose. (since 7.0.1)

Since:

7.0.1

Author:

jumperchen

Method Summary

java.lang.String	getLabel(java.util.Locale locale, java.lang.String key) Returns the label of the specified key for the specified locale, or null if not found.
java.lang.String	getLabel(java.lang.String key) Returns the label of the specified key for the current locale, or null if not found.
java.util.Map<java.lang.String,java.lang.Object>	getSegmentedLabels() Returns a map of segmented labels for the current locale (never null).
java.util.Map<java.lang.String,java.lang.Object>	getSegmentedLabels(java.util.Locale locale) Returns a map of segmented labels for the specified locale (never null).
void	register(LabelLocator locator) Registers a locator which is used to load the Locale-dependent labels from other resource, such as servlet contexts.
void	register(LabelLocator2 locator) Registers a locator which is used to load the Locale-dependent labels from other resource, such as database.
void	reset() Resets all cached labels and next call to getLabel(java.util.Locale, java.lang.String) will cause re-loading the Locale-dependent labels.
VariableResolver	setVariableResolver(VariableResolver resolv) Sets the variable resolver, which is used if an EL expression is specified.

Method Detail

getLabel

java.lang.String getLabel(java.util.Locale locale,
                          java.lang.String key)

Returns the label of the specified key for the specified locale, or null if not found.

getLabel

java.lang.String getLabel(java.lang.String key)

Returns the label of the specified key for the current locale, or null if not found.

See Also:

getSegmentedLabels()

getSegmentedLabels

java.util.Map<java.lang.String,java.lang.Object> getSegmentedLabels()

Returns a map of segmented labels for the current locale (never null). Unlike getLabel(java.util.Locale, java.lang.String), if a key of the label contains dot, it will be split into multiple keys and then grouped into map. It is so-called segmented.

For example, the following property file will parsed into a couple of maps, and getSegmentedLabels() returns a map containing a single entry. The entry's key is "a" and the value is another map with two entries "b" and "c". And, the value for "b" is another two-entries map (containing "c" and "d").

 a.b.c=1
 a.b.d=2
 a.e=3

This method is designed to make labels easier to be accessed in EL expressions.

On the other hand, getLabel(java.util.Locale, java.lang.String) does not split them, and you could access them by, say, getLabel("a.b.d").

getSegmentedLabels

java.util.Map<java.lang.String,java.lang.Object> getSegmentedLabels(java.util.Locale locale)

Returns a map of segmented labels for the specified locale (never null). Refer to getSegmentedLabels() for details.

reset

void reset()

Resets all cached labels and next call to getLabel(java.util.Locale, java.lang.String) will cause re-loading the Locale-dependent labels.

setVariableResolver

VariableResolver setVariableResolver(VariableResolver resolv)

Sets the variable resolver, which is used if an EL expression is specified.

register

void register(LabelLocator locator)

Registers a locator which is used to load the Locale-dependent labels from other resource, such as servlet contexts.

register

void register(LabelLocator2 locator)

Registers a locator which is used to load the Locale-dependent labels from other resource, such as database.