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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.
Constructor Summary | |
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AbstractResource()
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Method Summary | |
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Resource |
createRelative(String relativePath)
This implementation throws a FileNotFoundException, assuming that relative resources cannot be created for this resource. |
boolean |
equals(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. |
File |
getFile()
This implementation throws a FileNotFoundException, assuming that the resource cannot be resolved to an absolute file path. |
String |
getFilename()
This implementation always throws IllegalStateException, assuming that the resource does not carry a filename. |
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 implementation always returns false . |
String |
toString()
This implementation returns the description of this resource. |
Methods inherited from class java.lang.Object |
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clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
Methods inherited from interface org.springframework.core.io.Resource |
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getDescription |
Methods inherited from interface org.springframework.core.io.InputStreamSource |
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getInputStream |
Constructor Detail |
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public AbstractResource()
Method Detail |
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public boolean exists()
public boolean isOpen()
public URL getURL() throws IOException
IOException
- if the resource cannot be resolved as URL,
i.e. if the resource is not available as descriptorpublic File getFile() throws IOException
IOException
- if the resource cannot be resolved as absolute
file path, i.e. if the resource is not available in a file systempublic Resource createRelative(String relativePath) throws IOException
createRelative
in interface Resource
relativePath
- the relative path (relative to this resource)
IOException
- if the relative resource cannot be determinedpublic String getFilename() throws IllegalStateException
getFilename
in interface Resource
IllegalStateException
public String toString()
Resource.getDescription()
public boolean equals(Object obj)
Resource.getDescription()
public int hashCode()
Resource.getDescription()
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