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java.lang.Object org.springframework.core.io.AbstractResource
Convenience base class for Resource implementations, pre-implementing typical behavior.
The "exists" method will check whether a File or InputStream can be opened; "isOpen" will always return false; "getURL" and "getFile" throw an exception; and "toString" will return the description.
Field Summary | |
protected static java.lang.String |
URL_PROTOCOL_FILE
|
Constructor Summary | |
AbstractResource()
|
Method Summary | |
boolean |
equals(java.lang.Object obj)
This implementation compares description strings. |
boolean |
exists()
This implementation checks whether a File can be opened, falling back to whether an InputStream can be opened. |
java.io.File |
getFile()
This implementation throws a FileNotFoundException, assuming that the resource cannot be resolved to an absolute file path. |
java.net.URL |
getURL()
This implementation throws a FileNotFoundException, assuming that the resource cannot be resolved to a URL. |
int |
hashCode()
This implementation returns the description's hash code. |
boolean |
isOpen()
This implementations always returns false. |
java.lang.String |
toString()
This implementation returns the description of this resource. |
Methods inherited from class java.lang.Object |
clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
Methods inherited from interface org.springframework.core.io.Resource |
getDescription |
Methods inherited from interface org.springframework.core.io.InputStreamSource |
getInputStream |
Field Detail |
protected static final java.lang.String URL_PROTOCOL_FILE
Constructor Detail |
public AbstractResource()
Method Detail |
public boolean exists()
exists
in interface Resource
public boolean isOpen()
isOpen
in interface Resource
public java.net.URL getURL() throws java.io.IOException
getURL
in interface Resource
java.io.IOException
- if the resource cannot be resolved as URL,
i.e. if the resource is not available as descriptorpublic java.io.File getFile() throws java.io.IOException
getFile
in interface Resource
java.io.IOException
- if the resource cannot be resolved as absolute
file path, i.e. if the resource is not available in a file systempublic java.lang.String toString()
Resource.getDescription()
public boolean equals(java.lang.Object obj)
Resource.getDescription()
public int hashCode()
Resource.getDescription()
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