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ICU 77.1: icu::ResourceBundle Class Reference

A class representing a collection of resource information pertaining to a given locale. More...

#include <resbund.h>

A class representing a collection of resource information pertaining to a given locale.

A resource bundle provides a way of accessing locale- specific information in a data file. You create a resource bundle that manages the resources for a given locale and then ask it for individual resources.

Resource bundles in ICU4C are currently defined using text files which conform to the following BNF definition. More on resource bundle concepts and syntax can be found in the Users Guide.

The ResourceBundle class is not suitable for subclassing.

Stable:

ICU 2.0

Definition at line 83 of file resbund.h.

Constructor.

Parameters

packageName The packageName and locale together point to an ICU udata object, as defined by udata_open( packageName, "res", locale, err) or equivalent. Typically, packageName will refer to a (.dat) file, or to a package registered with udata_setAppData(). Using a full file or directory pathname for packageName is deprecated. locale This is the locale this resource bundle is for. To get resources for the French locale, for example, you would create a ResourceBundle passing Locale::FRENCH for the "locale" parameter, and all subsequent calls to that resource bundle will return resources that pertain to the French locale. If the caller doesn't pass a locale parameter, the default locale for the system (as returned by Locale::getDefault()) will be used. err The Error Code. The UErrorCode& err parameter is used to return status information to the user. To check whether the construction succeeded or not, you should check the value of U_SUCCESS(err). If you wish more detailed information, you can check for informational error results which still indicate success. U_USING_FALLBACK_WARNING indicates that a fall back locale was used. For example, 'de_CH' was requested, but nothing was found there, so 'de' was used. U_USING_DEFAULT_WARNING indicates that the default locale data was used; neither the requested locale nor any of its fall back locales could be found.

Stable:

ICU 2.0

Construct a resource bundle for the default bundle in the specified package.

Parameters

packageName The packageName and locale together point to an ICU udata object, as defined by udata_open( packageName, "res", locale, err) or equivalent. Typically, packageName will refer to a (.dat) file, or to a package registered with udata_setAppData(). Using a full file or directory pathname for packageName is deprecated. err A UErrorCode value

Stable:

ICU 2.0

Construct a resource bundle for the ICU default bundle.

Parameters

Stable:

ICU 2.0

Standard constructor, constructs a resource bundle for the locale-specific bundle in the specified package.

Parameters

packageName The packageName and locale together point to an ICU udata object, as defined by udata_open( packageName, "res", locale, err) or equivalent. Typically, packageName will refer to a (.dat) file, or to a package registered with udata_setAppData(). Using a full file or directory pathname for packageName is deprecated. nullptr is used to refer to ICU data. locale The locale for which to open a resource bundle. err A UErrorCode value

Stable:

ICU 2.0

Copy constructor.

Parameters

original The resource bundle to copy.

Stable:

ICU 2.0

Constructor from a C UResourceBundle.

The resource bundle is copied and not adopted. ures_close will still need to be used on the original resource bundle.

Parameters

res A pointer to the C resource bundle. status A UErrorCode value.

Stable:

ICU 2.0

Clone this object.

Clones can be used concurrently in multiple threads. If an error occurs, then nullptr is returned. The caller must delete the clone.

Returns

a clone of this object

See also

getDynamicClassID

Stable:

ICU 2.8

Returns a resource in a resource that has a given key.

This procedure works only with table resources.

Parameters

key a key associated with the wanted resource status fills in the outgoing error code.

Returns

ResourceBundle object. If there is an error, resource is invalid.

Stable:

ICU 2.0

Returns the resource in a resource at the specified index.

Parameters

index an index to the wanted resource. status fills in the outgoing error code

Returns

ResourceBundle object. If there is an error, resource is invalid.

Stable:

ICU 2.0

returns a binary data from a resource.

Can be used at most primitive resource types (binaries, strings, ints)

Parameters

len fills in the length of resulting byte chunk status fills in the outgoing error code could be U_MISSING_RESOURCE_ERROR if the key is not found could be a warning e.g.: U_USING_FALLBACK_WARNING,U_USING_DEFAULT_WARNING

Returns

a pointer to a chunk of unsigned bytes which live in a memory mapped/DLL file.

Stable:

ICU 2.0

ICU "poor man's RTTI", returns a UClassID for the actual class.

Stable:

ICU 2.2

Reimplemented from icu::UObject.

returns a signed integer from a resource.

This integer is originally 28 bit and the sign gets propagated.

Parameters

status fills in the outgoing error code could be U_MISSING_RESOURCE_ERROR if the key is not found could be a warning e.g.: U_USING_FALLBACK_WARNING,U_USING_DEFAULT_WARNING

Returns

a signed integer value

Stable:

ICU 2.0

returns an integer vector from a resource.

Parameters

len fills in the length of resulting integer vector status fills in the outgoing error code could be U_MISSING_RESOURCE_ERROR if the key is not found could be a warning e.g.: U_USING_FALLBACK_WARNING,U_USING_DEFAULT_WARNING

Returns

a pointer to a vector of integers that lives in a memory mapped/DLL file.

Stable:

ICU 2.0

Returns the key associated with this resource.

Not all the resources have a key - only those that are members of a table.

Returns

a key associated to this resource, or nullptr if it doesn't have a key

Stable:

ICU 2.0

Return the Locale associated with this ResourceBundle.

Parameters

type You can choose between requested, valid and actual locale. For description see the definition of ULocDataLocaleType in uloc.h status just for catching illegal arguments

Returns

a Locale object

Stable:

ICU 2.8

Gets the locale ID of the resource bundle as a string.

Same as getLocale().getName() .

Returns

the locale ID of the resource bundle as a string

Stable:

ICU 2.0

Returns the next resource in a given resource or nullptr if there are no more resources.

Parameters

status fills in the outgoing error code

Returns

ResourceBundle object.

Stable:

ICU 2.0

Returns the next string in a resource or nullptr if there are no more resources to iterate over.

Parameters

key fill in for key associated with this string status fills in the outgoing error code

Returns

an UnicodeString object.

Stable:

ICU 2.0

Returns the next string in a resource or nullptr if there are no more resources to iterate over.

Parameters

status fills in the outgoing error code

Returns

an UnicodeString object.

Stable:

ICU 2.0

Returns the size of a resource.

Size for scalar types is always 1, and for vector/table types is the number of child resources.

Warning

Integer array is treated as a scalar type. There are no APIs to access individual members of an integer array. It is always returned as a whole.

Returns

number of resources in a given resource.

Stable:

ICU 2.0

ICU "poor man's RTTI", returns a UClassID for this class.

Stable:

ICU 2.2

returns a string from a string resource type

Parameters

status fills in the outgoing error code could be U_MISSING_RESOURCE_ERROR if the key is not found could be a warning e.g.: U_USING_FALLBACK_WARNING,U_USING_DEFAULT_WARNING

Returns

a pointer to a zero-terminated char16_t array which lives in a memory mapped/DLL file.

Stable:

ICU 2.0

Returns a string in a resource that has a given key.

This procedure works only with table resources.

Parameters

key a key associated with the wanted string status fills in the outgoing error code

Returns

an UnicodeString object. If there is an error, string is bogus

Stable:

ICU 2.0

Returns the string in a given resource at the specified index.

Parameters

index an index to the wanted string. status fills in the outgoing error code

Returns

an UnicodeString object. If there is an error, string is bogus

Stable:

ICU 2.0

Returns the type of a resource.

Available types are defined in enum UResType

Returns

type of the given resource.

Stable:

ICU 2.0

returns an unsigned integer from a resource.

This integer is originally 28 bits.

Parameters

status fills in the outgoing error code could be U_MISSING_RESOURCE_ERROR if the key is not found could be a warning e.g.: U_USING_FALLBACK_WARNING,U_USING_DEFAULT_WARNING

Returns

an unsigned integer value

Stable:

ICU 2.0

Return the version number associated with this ResourceBundle as a UVersionInfo array.

Parameters

versionInfo A UVersionInfo array that is filled with the version number as specified in the resource bundle or its parent.

Stable:

ICU 2.0

Return the version number associated with this ResourceBundle as a string.

Please use getVersion, as this method is going to be deprecated.

Returns

A version number string as specified in the resource bundle or its parent. The caller does not own this string.

See also

getVersion

Deprecated:

ICU 2.8 Use getVersion instead.

This API implements multilevel fallback.

Internal:

Do not use.

This API is for internal use only.

Checks whether the resource has another element to iterate over.

Returns

true if there are more elements, false if there is no more elements

Stable:

ICU 2.0

Assignment operator.

Parameters

other The resource bundle to copy.

Stable:

ICU 2.0

Resets the internal context of a resource so that iteration starts from the first element.

Stable:

ICU 2.0

The documentation for this class was generated from the following file:

• common/unicode/resbund.h

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