ObjectInputStream
public abstract static class ObjectInputStream.GetField extends Object
Constructor | Description |
---|---|
GetField() |
Constructor for subclasses to call. |
Modifier and Type | Method | Description |
---|---|---|
abstract boolean |
defaulted |
Return true if the named field is defaulted and has no value in this stream. |
abstract boolean |
get |
Get the value of the named boolean field from the persistent field. |
abstract byte |
get |
Get the value of the named byte field from the persistent field. |
abstract char |
get |
Get the value of the named char field from the persistent field. |
abstract double |
get |
Get the value of the named double field from the persistent field. |
abstract float |
get |
Get the value of the named float field from the persistent field. |
abstract int |
get |
Get the value of the named int field from the persistent field. |
abstract long |
get |
Get the value of the named long field from the persistent field. |
abstract short |
get |
Get the value of the named short field from the persistent field. |
abstract Object |
get |
Get the value of the named Object field from the persistent field. |
abstract ObjectStreamClass |
getObjectStreamClass() |
Get the ObjectStreamClass that describes the fields in the stream. |
public GetField()
public abstract ObjectStreamClass getObjectStreamClass()
public abstract boolean defaulted(String name) throws IOException
name
- the name of the fieldIOException
- if there are I/O errors while reading from the underlying InputStream
IllegalArgumentException
- if name
does not correspond to a serializable fieldpublic abstract boolean get(String name, boolean val) throws IOException
name
- the name of the fieldval
- the default value to use if name
does not have a valueboolean
fieldIOException
- if there are I/O errors while reading from the underlying InputStream
IllegalArgumentException
- if type of name
is not serializable or if the field type is incorrectpublic abstract byte get(String name, byte val) throws IOException
name
- the name of the fieldval
- the default value to use if name
does not have a valuebyte
fieldIOException
- if there are I/O errors while reading from the underlying InputStream
IllegalArgumentException
- if type of name
is not serializable or if the field type is incorrectpublic abstract char get(String name, char val) throws IOException
name
- the name of the fieldval
- the default value to use if name
does not have a valuechar
fieldIOException
- if there are I/O errors while reading from the underlying InputStream
IllegalArgumentException
- if type of name
is not serializable or if the field type is incorrectpublic abstract short get(String name, short val) throws IOException
name
- the name of the fieldval
- the default value to use if name
does not have a valueshort
fieldIOException
- if there are I/O errors while reading from the underlying InputStream
IllegalArgumentException
- if type of name
is not serializable or if the field type is incorrectpublic abstract int get(String name, int val) throws IOException
name
- the name of the fieldval
- the default value to use if name
does not have a valueint
fieldIOException
- if there are I/O errors while reading from the underlying InputStream
IllegalArgumentException
- if type of name
is not serializable or if the field type is incorrectpublic abstract long get(String name, long val) throws IOException
name
- the name of the fieldval
- the default value to use if name
does not have a valuelong
fieldIOException
- if there are I/O errors while reading from the underlying InputStream
IllegalArgumentException
- if type of name
is not serializable or if the field type is incorrectpublic abstract float get(String name, float val) throws IOException
name
- the name of the fieldval
- the default value to use if name
does not have a valuefloat
fieldIOException
- if there are I/O errors while reading from the underlying InputStream
IllegalArgumentException
- if type of name
is not serializable or if the field type is incorrectpublic abstract double get(String name, double val) throws IOException
name
- the name of the fieldval
- the default value to use if name
does not have a valuedouble
fieldIOException
- if there are I/O errors while reading from the underlying InputStream
IllegalArgumentException
- if type of name
is not serializable or if the field type is incorrectpublic abstract Object get(String name, Object val) throws IOException, ClassNotFoundException
name
- the name of the fieldval
- the default value to use if name
does not have a valueObject
fieldClassNotFoundException
- Class of a serialized object cannot be found.IOException
- if there are I/O errors while reading from the underlying InputStream
IllegalArgumentException
- if type of name
is not serializable or if the field type is incorrect
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Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
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https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/io/ObjectInputStream.GetField.html