bboss.org.apache.velocity.runtime.resource

类 ResourceManagerImpl

java.lang.Object

bboss.org.apache.velocity.runtime.resource.ResourceManagerImpl

所有已实现的接口:

ResourceManager

public class ResourceManagerImpl
extends java.lang.Object
implements ResourceManager

Class to manage the text resource for the Velocity Runtime.

字段概要

字段

限定符和类型	字段和说明
protected ResourceCache	globalCache Object implementing ResourceCache to be our resource manager's Resource cache.
protected Log	log Logging.
static int	RESOURCE_CONTENT A static content resource.
static int	RESOURCE_TEMPLATE A template resources.
protected java.util.List	resourceLoaders The List of templateLoaders that the Runtime will use to locate the InputStream source of a template.
protected RuntimeServices	rsvc The internal RuntimeServices object.

从接口继承的字段 bboss.org.apache.velocity.runtime.resource.ResourceManager

RESOURCE_ES, RESOURCE_SQL

构造器概要

构造器

构造器和说明
ResourceManagerImpl()

方法概要

限定符和类型	方法和说明
protected Resource	createResource(java.lang.String resourceName, int resourceType) Create a new Resource of the specified type.
java.lang.String	getLoaderNameForResource(java.lang.String resourceName) Determines if a template exists, and returns name of the loader that provides it.
Resource	getResource(java.lang.String resourceName, int resourceType) 已过时。 Use getResource(String resourceName, int resourceType, String encoding )
Resource	getResource(java.lang.String resourceName, int resourceType, java.lang.String encoding) Gets the named resource.
void	initialize(RuntimeServices rsvc) Initialize the ResourceManager.
void	initTemplate(Resource resource, java.lang.String encoding)
protected Resource	loadResource(java.lang.String resourceName, int resourceType, java.lang.String encoding) Loads a resource from the current set of resource loaders.
protected Resource	refreshResource(Resource resource, java.lang.String encoding) Takes an existing resource, and 'refreshes' it.

从类继承的方法 java.lang.Object

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

字段详细资料

RESOURCE_TEMPLATE

public static final int RESOURCE_TEMPLATE

A template resources.

另请参阅:

常量字段值

RESOURCE_CONTENT

public static final int RESOURCE_CONTENT

A static content resource.

另请参阅:

常量字段值

globalCache

protected ResourceCache globalCache

Object implementing ResourceCache to be our resource manager's Resource cache.

resourceLoaders

protected final java.util.List resourceLoaders

The List of templateLoaders that the Runtime will use to locate the InputStream source of a template.

rsvc

protected RuntimeServices rsvc

The internal RuntimeServices object.

log

protected Log log

Logging.

构造器详细资料

ResourceManagerImpl

public ResourceManagerImpl()

方法详细资料

initialize

public void initialize(RuntimeServices rsvc)

Initialize the ResourceManager.

指定者:

initialize 在接口中 ResourceManager

参数:

rsvc - The Runtime Services object which is associated with this Resource Manager.

getResource

public Resource getResource(java.lang.String resourceName,
                            int resourceType,
                            java.lang.String encoding)
                     throws ResourceNotFoundException,
                            ParseErrorException

Gets the named resource. Returned class type corresponds to specified type (i.e. Template to RESOURCE_TEMPLATE). This method is now unsynchronized which requires that ResourceCache implementations be thread safe (as the default is).

指定者:

getResource 在接口中 ResourceManager

参数:

resourceName - The name of the resource to retrieve.

resourceType - The type of resource (RESOURCE_TEMPLATE, RESOURCE_CONTENT, etc.).

encoding - The character encoding to use.

返回:

Resource with the template parsed and ready.

抛出:

ResourceNotFoundException - if template not found from any available source.

ParseErrorException - if template cannot be parsed due to syntax (or other) error.

createResource

protected Resource createResource(java.lang.String resourceName,
                                  int resourceType)

Create a new Resource of the specified type.

参数:

resourceName - The name of the resource to retrieve.

resourceType - The type of resource (RESOURCE_TEMPLATE, RESOURCE_CONTENT, etc.).

返回:

new instance of appropriate resource type

从以下版本开始:

1.6

loadResource

protected Resource loadResource(java.lang.String resourceName,
                                int resourceType,
                                java.lang.String encoding)
                         throws ResourceNotFoundException,
                                ParseErrorException

Loads a resource from the current set of resource loaders.

参数:

resourceName - The name of the resource to retrieve.

resourceType - The type of resource (RESOURCE_TEMPLATE, RESOURCE_CONTENT, etc.).

encoding - The character encoding to use.

返回:

Resource with the template parsed and ready.

抛出:

ResourceNotFoundException - if template not found from any available source.

ParseErrorException - if template cannot be parsed due to syntax (or other) error.

initTemplate

public void initTemplate(Resource resource,
                         java.lang.String encoding)

指定者:

initTemplate 在接口中 ResourceManager

refreshResource

protected Resource refreshResource(Resource resource,
                                   java.lang.String encoding)
                            throws ResourceNotFoundException,
                                   ParseErrorException

Takes an existing resource, and 'refreshes' it. This generally means that the source of the resource is checked for changes according to some cache/check algorithm and if the resource changed, then the resource data is reloaded and re-parsed.

参数:

resource - resource to refresh

encoding - character encoding of the resource to refresh.

抛出:

ResourceNotFoundException - if template not found from current source for this Resource

ParseErrorException - if template cannot be parsed due to syntax (or other) error.

getResource

public Resource getResource(java.lang.String resourceName,
                            int resourceType)
                     throws ResourceNotFoundException,
                            ParseErrorException,
                            java.lang.Exception

已过时。 Use getResource(String resourceName, int resourceType, String encoding )

Gets the named resource. Returned class type corresponds to specified type (i.e. Template to RESOURCE_TEMPLATE).

参数:

resourceName - The name of the resource to retrieve.

resourceType - The type of resource (RESOURCE_TEMPLATE, RESOURCE_CONTENT, etc.).

返回:

Resource with the template parsed and ready.

抛出:

ResourceNotFoundException - if template not found from any available source.

ParseErrorException - if template cannot be parsed due to syntax (or other) error.

java.lang.Exception - if a problem in parse

getLoaderNameForResource

public java.lang.String getLoaderNameForResource(java.lang.String resourceName)

Determines if a template exists, and returns name of the loader that provides it. This is a slightly less hokey way to support the Velocity.templateExists() utility method, which was broken when per-template encoding was introduced. We can revisit this.

指定者:

getLoaderNameForResource 在接口中 ResourceManager

参数:

resourceName - Name of template or content resource

返回:

class name of loader than can provide it