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• java
• j2se
• 1.6
• java.io
• GetField

Methods

• ObjectInputStream.GetFieldtop

  public ObjectInputStream.GetField()

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• defaultedtop

  public abstract boolean defaulted(String name) throws IOException
  Return true if the named field is defaulted and has no value in this stream.

  Parameters:

  @param name the name of the field

  Return:

  @return true, if and only if the named field is defaulted

  Exceptions:

  @throws IOException if there are I/O errors while reading from the underlying InputStream

  @throws IllegalArgumentException if name does not correspond to a serializable field

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• gettop

  public abstract byte get(String name, byte val) throws IOException
  Get the value of the named byte field from the persistent field.

  Parameters:

  @param name the name of the field

  @param val the default value to use if name does not have a value

  Return:

  @return the value of the named byte field

  Exceptions:

  @throws IOException if there are I/O errors while reading from the underlying InputStream

  @throws IllegalArgumentException if type of name is not serializable or if the field type is incorrect

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• gettop

  public abstract char get(String name, char val) throws IOException
  Get the value of the named char field from the persistent field.

  Parameters:

  @param name the name of the field

  @param val the default value to use if name does not have a value

  Return:

  @return the value of the named char field

  Exceptions:

  @throws IOException if there are I/O errors while reading from the underlying InputStream

  @throws IllegalArgumentException if type of name is not serializable or if the field type is incorrect

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• gettop

  public abstract double get(String name, double val) throws IOException
  Get the value of the named double field from the persistent field.

  Parameters:

  @param name the name of the field

  @param val the default value to use if name does not have a value

  Return:

  @return the value of the named double field

  Exceptions:

  @throws IOException if there are I/O errors while reading from the underlying InputStream

  @throws IllegalArgumentException if type of name is not serializable or if the field type is incorrect

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• gettop

  public abstract float get(String name, float val) throws IOException
  Get the value of the named float field from the persistent field.

  Parameters:

  @param name the name of the field

  @param val the default value to use if name does not have a value

  Return:

  @return the value of the named float field

  Exceptions:

  @throws IOException if there are I/O errors while reading from the underlying InputStream

  @throws IllegalArgumentException if type of name is not serializable or if the field type is incorrect

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• gettop

  public abstract int get(String name, int val) throws IOException
  Get the value of the named int field from the persistent field.

  Parameters:

  @param name the name of the field

  @param val the default value to use if name does not have a value

  Return:

  @return the value of the named int field

  Exceptions:

  @throws IOException if there are I/O errors while reading from the underlying InputStream

  @throws IllegalArgumentException if type of name is not serializable or if the field type is incorrect

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• gettop

  public abstract long get(String name, long val) throws IOException
  Get the value of the named long field from the persistent field.

  Parameters:

  @param name the name of the field

  @param val the default value to use if name does not have a value

  Return:

  @return the value of the named long field

  Exceptions:

  @throws IOException if there are I/O errors while reading from the underlying InputStream

  @throws IllegalArgumentException if type of name is not serializable or if the field type is incorrect

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• gettop

  public abstract Object get(String name, Object val) throws IOException
  Get the value of the named Object field from the persistent field.

  Parameters:

  @param name the name of the field

  @param val the default value to use if name does not have a value

  Return:

  @return the value of the named Object field

  Exceptions:

  @throws IOException if there are I/O errors while reading from the underlying InputStream

  @throws IllegalArgumentException if type of name is not serializable or if the field type is incorrect

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• gettop

  public abstract short get(String name, short val) throws IOException
  Get the value of the named short field from the persistent field.

  Parameters:

  @param name the name of the field

  @param val the default value to use if name does not have a value

  Return:

  @return the value of the named short field

  Exceptions:

  @throws IOException if there are I/O errors while reading from the underlying InputStream

  @throws IllegalArgumentException if type of name is not serializable or if the field type is incorrect

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• gettop

  public abstract boolean get(String name, boolean val) throws IOException
  Get the value of the named boolean field from the persistent field.

  Parameters:

  @param name the name of the field

  @param val the default value to use if name does not have a value

  Return:

  @return the value of the named boolean field

  Exceptions:

  @throws IOException if there are I/O errors while reading from the underlying InputStream

  @throws IllegalArgumentException if type of name is not serializable or if the field type is incorrect

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• getObjectStreamClasstop

  public abstract ObjectStreamClass getObjectStreamClass()
  Get the ObjectStreamClass that describes the fields in the stream.

  Return:

  @return the descriptor class that describes the serializable fields

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