OpenJDK 27 · javax.sql.rowset.serial.SerialBlob · APIdia, the JavaDoc alternative

Modifier and Type	Field and Description
private Blob	blob
private byte[]	buf A serialized array of uninterpreted bytes representing the value of this `SerialBlob` object.
private long	len The number of bytes in this `SerialBlob` object's array of bytes.
private long	origLen The original number of bytes in this `SerialBlob` object's array of bytes when it was first established.
pack-priv static final long	serialVersionUID The identifier that assists in the serialization of this `SerialBlob` object.

Access	Constructor and Description
public	SerialBlob(byte[] the `byte` array containing the data for the `Blob` object to be serialized b) Constructs a `SerialBlob` object that is a serialized version of the given `byte` array.
public	SerialBlob(Blob the `Blob` object from which this `SerialBlob` object is to be constructed; cannot be null. blob) Constructs a `SerialBlob` object that is a serialized version of the given `Blob` object.

Method Summary

Modifier and Type	Method and Description
public Object	Returns: a clone of this SerialBlob clone() Overrides java.lang.Object.clone. Returns a clone of this `SerialBlob`.
public boolean	Returns: `true` if the given object represents a `SerialBlob` equivalent to this SerialBlob, `false` otherwise equals(Object The object to compare this `SerialBlob` against obj) Overrides java.lang.Object.equals. Compares this SerialBlob to the specified object.
public void	free() Implements java.sql.Blob.free. This method frees the `SerialBlob` object and releases the resources that it holds.
public InputStream	Returns: a `java.io.InputStream` object that contains this `SerialBlob` object's array of bytes getBinaryStream() Implements java.sql.Blob.getBinaryStream. Returns this `SerialBlob` object as an input stream.
public InputStream	Returns: `InputStream` through which the partial `Blob` value can be read. getBinaryStream(long the offset to the first byte of the partial value to be retrieved. The first byte in the `Blob` is at position 1 pos, long the length in bytes of the partial value to be retrieved length) Implements java.sql.Blob.getBinaryStream. Returns an `InputStream` object that contains a partial `Blob` value, starting with the byte specified by pos, which is length bytes in length.
public byte[]	Returns: an array of bytes that is a copy of a region of this `SerialBlob` object, starting at the given position and containing the given number of consecutive bytes getBytes(long the ordinal position of the first byte in this `SerialBlob` object to be copied; numbering starts at `1`; must not be less than `1` and must be less than or equal to the length of this `SerialBlob` object pos, int the number of bytes to be copied length) Implements java.sql.Blob.getBytes. Copies the specified number of bytes, starting at the given position, from this `SerialBlob` object to another array of bytes.
public int	Returns: a hash code value for this object. hashCode() Overrides java.lang.Object.hashCode. Returns a hash code for this `SerialBlob`.
private void	isValid() Check to see if this object had previously had its `free` method called
public long	Returns: a `long` indicating the length in bytes of this `SerialBlob` object's array of bytes length() Implements java.sql.Blob.length. Retrieves the number of bytes in this `SerialBlob` object's array of bytes.
public long	Returns: the position in this `SerialBlob` object where the given pattern begins, starting at the specified position; `-1` if the pattern is not found or the given starting position is out of bounds; position numbering for the return value starts at `1` position(byte[] the pattern of bytes for which to search pattern, long the position of the byte in this `SerialBlob` object from which to begin the search; the first position is `1`; must not be less than `1` nor greater than the length of this `SerialBlob` object start) Implements java.sql.Blob.position. Returns the position in this `SerialBlob` object where the given pattern of bytes begins, starting the search at the specified position.
public long	Returns: the position in this `SerialBlob` object where the given `Blob` object begins, starting at the specified position; `-1` if the pattern is not found or the given starting position is out of bounds; position numbering for the return value starts at `1` position(Blob the `Blob` object for which to search; pattern, long the position of the byte in this `SerialBlob` object from which to begin the search; the first position is `1`; must not be less than `1` nor greater than the length of this `SerialBlob` object start) Implements java.sql.Blob.position. Returns the position in this `SerialBlob` object where the given `Blob` object begins, starting the search at the specified position.
private void	readObject(ObjectInputStream the `ObjectInputStream` to read from. s) readObject is called to restore the state of the SerialBlob from a stream.
public OutputStream	Returns: a `java.io.OutputStream` object to which data can be written setBinaryStream(long the position in the `BLOB` value at which to start writing pos) Implements java.sql.Blob.setBinaryStream. Retrieves a stream that can be used to write to the `BLOB` value that this `Blob` object represents.
public int	Returns: the number of bytes written setBytes(long the position in the SQL `BLOB` value at which to start writing. The first position is `1`; must not be less than `1` nor greater than the length+1 of this `SerialBlob` object. pos, byte[] the array of bytes to be written to the `BLOB` value that this `Blob` object represents bytes) Implements java.sql.Blob.setBytes. Writes the given array of bytes to the `BLOB` value that this `Blob` object represents, starting at position `pos`, and returns the number of bytes written.
public int	Returns: the number of bytes written setBytes(long the position in the `BLOB` object at which to start writing. The first position is `1`; must not be less than `1` nor greater than the length+1 of this `SerialBlob` object. pos, byte[] the array of bytes to be written to the `BLOB` value bytes, int the offset into the array `byte`s at which to start reading the bytes to be set. The first offset position is `0`; must not be less than `0` nor greater than the length of the array `byte`s offset, int the number of bytes to be written to the `BLOB` value from the array of bytes `byte`s length) Implements java.sql.Blob.setBytes. Writes all or part of the given `byte` array to the `BLOB` value that this `Blob` object represents and returns the number of bytes written.
public void	truncate(long the length, in bytes, to which the `BLOB` value that this `Blob` object represents should be truncated length) Implements java.sql.Blob.truncate. Truncates the `BLOB` value that this `Blob` object represents to be `len` bytes in length.
private void	writeObject(ObjectOutputStream the `ObjectOutputStream` to write to. s) writeObject is called to save the state of the SerialBlob to a stream.

Inherited from java.lang.Object:: finalize getClass notify notifyAll toString wait wait wait

blob	back to summary
private Blob blob Annotations @SuppressWarnings:serial

buf	back to summary
private byte[] buf A serialized array of uninterpreted bytes representing the value of this `SerialBlob` object.

len	back to summary
private long len The number of bytes in this `SerialBlob` object's array of bytes.

origLen	back to summary
private long origLen The original number of bytes in this `SerialBlob` object's array of bytes when it was first established.

serialVersionUID	back to summary
pack-priv static final long serialVersionUID The identifier that assists in the serialization of this `SerialBlob` object.

SerialBlob	back to summary
public SerialBlob(byte[] b) throws SerialException, SQLException Constructs a `SerialBlob` object that is a serialized version of the given `byte` array. The new `SerialBlob` object is initialized with the data from the `byte` array, thus allowing disconnected `RowSet` objects to establish serialized `Blob` objects without touching the data source. Parameters b:byte[] the `byte` array containing the data for the `Blob` object to be serialized Exceptions SerialException: if an error occurs during serialization SQLException: if a SQL errors occurs

SerialBlob	back to summary
public SerialBlob(Blob blob) throws SerialException, SQLException Constructs a `SerialBlob` object that is a serialized version of the given `Blob` object. The new `SerialBlob` object is initialized with the data from the `Blob` object; therefore, the `Blob` object should have previously brought the SQL `BLOB` value's data over to the client from the database. Otherwise, the new `SerialBlob` object will contain no data. Parameters blob:Blob the `Blob` object from which this `SerialBlob` object is to be constructed; cannot be null. Exceptions SerialException: if an error occurs during serialization SQLException: if the `Blob` passed to this to this constructor is a `null`. See Also `java.sql.Blob`

Method Detail

clone back to summary

clone	back to summary
public Object clone() Overrides java.lang.Object.clone. Returns a clone of this `SerialBlob`. The copy will contain a reference to a clone of the internal byte array, not a reference to the original internal byte array of this `SerialBlob` object. The underlying `Blob` object will be set to null. Returns:Object a clone of this SerialBlob

public Object clone()

Overrides java.lang.Object.clone.

Returns a clone of this SerialBlob. The copy will contain a reference to a clone of the internal byte array, not a reference to the original internal byte array of this SerialBlob object. The underlying Blob object will be set to null.

Returns:Object: a clone of this SerialBlob

equals back to summary

equals	back to summary
public boolean equals(Object obj) Overrides java.lang.Object.equals. Compares this SerialBlob to the specified object. The result is `true` if and only if the argument is not `null` and is a `SerialBlob` object that represents the same sequence of bytes as this object. Parameters obj:Object The object to compare this `SerialBlob` against Returns:boolean `true` if the given object represents a `SerialBlob` equivalent to this SerialBlob, `false` otherwise

public boolean equals(Object obj)

Overrides java.lang.Object.equals.

Compares this SerialBlob to the specified object. The result is true if and only if the argument is not null and is a SerialBlob object that represents the same sequence of bytes as this object.

Parameters

obj:Object: The object to compare this SerialBlob against

Returns:boolean

true if the given object represents a SerialBlob equivalent to this SerialBlob, false otherwise

free back to summary

free	back to summary
public void free() throws SQLException Implements java.sql.Blob.free. This method frees the `SerialBlob` object and releases the resources that it holds. The object is invalid once the `free` method is called. If `free` is called multiple times, the subsequent calls to `free` are treated as a no-op. Exceptions SQLException: if an error occurs releasing the Blob's resources Since 1.6

public void free() throws SQLException

Implements java.sql.Blob.free.

This method frees the SerialBlob object and releases the resources that it holds. The object is invalid once the free method is called.

If free is called multiple times, the subsequent calls to free are treated as a no-op.

Exceptions

SQLException:: if an error occurs releasing the Blob's resources

Since

1.6

getBinaryStream back to summary

getBinaryStream	back to summary
public InputStream getBinaryStream() throws SerialException Implements java.sql.Blob.getBinaryStream. Returns this `SerialBlob` object as an input stream. Unlike the related method, `setBinaryStream`, a stream is produced regardless of whether the `SerialBlob` was created with a `Blob` object or a `byte` array. Returns:InputStream a `java.io.InputStream` object that contains this `SerialBlob` object's array of bytes Exceptions SerialException: if an error occurs; if `free` had previously been called on this object See Also `setBinaryStream`

public InputStream getBinaryStream() throws SerialException

Implements java.sql.Blob.getBinaryStream.

Returns this SerialBlob object as an input stream. Unlike the related method, setBinaryStream, a stream is produced regardless of whether the SerialBlob was created with a Blob object or a byte array.

Returns:InputStream

a java.io.InputStream object that contains this SerialBlob object's array of bytes

Exceptions

SerialException:: if an error occurs; if free had previously been called on this object

See Also

setBinaryStream

getBinaryStream back to summary

getBinaryStream	back to summary
public InputStream getBinaryStream(long pos, long length) throws SQLException Implements java.sql.Blob.getBinaryStream. Returns an `InputStream` object that contains a partial `Blob` value, starting with the byte specified by pos, which is length bytes in length. Parameters pos:long the offset to the first byte of the partial value to be retrieved. The first byte in the `Blob` is at position 1 length:long the length in bytes of the partial value to be retrieved Returns:InputStream `InputStream` through which the partial `Blob` value can be read. Exceptions SQLException: if pos is less than 1 or if pos is greater than the number of bytes in the `Blob` or if pos + length is greater than the number of bytes in the `Blob` SerialException: if the `free` method had been previously called on this object Since 1.6

public InputStream getBinaryStream(long pos, long length) throws SQLException

Implements java.sql.Blob.getBinaryStream.

Returns an InputStream object that contains a partial Blob value, starting with the byte specified by pos, which is length bytes in length.

Parameters

pos:long: the offset to the first byte of the partial value to be retrieved. The first byte in the Blob is at position 1
length:long: the length in bytes of the partial value to be retrieved

Returns:InputStream

InputStream through which the partial Blob value can be read.

Exceptions

SQLException:: if pos is less than 1 or if pos is greater than the number of bytes in the Blob or if pos + length is greater than the number of bytes in the Blob
SerialException:: if the free method had been previously called on this object

Since

1.6

getBytes back to summary

getBytes	back to summary
public byte[] getBytes(long pos, int length) throws SerialException Implements java.sql.Blob.getBytes. Copies the specified number of bytes, starting at the given position, from this `SerialBlob` object to another array of bytes. Note that if the given number of bytes to be copied is larger than the length of this `SerialBlob` object's array of bytes, the given number will be shortened to the array's length. Parameters pos:long the ordinal position of the first byte in this `SerialBlob` object to be copied; numbering starts at `1`; must not be less than `1` and must be less than or equal to the length of this `SerialBlob` object length:int the number of bytes to be copied Returns:byte[] an array of bytes that is a copy of a region of this `SerialBlob` object, starting at the given position and containing the given number of consecutive bytes Exceptions SerialException: if the given starting position is out of bounds; if `free` had previously been called on this object

public byte[] getBytes(long pos, int length) throws SerialException

Implements java.sql.Blob.getBytes.

Copies the specified number of bytes, starting at the given position, from this SerialBlob object to another array of bytes.

Note that if the given number of bytes to be copied is larger than the length of this SerialBlob object's array of bytes, the given number will be shortened to the array's length.

Parameters

pos:long: the ordinal position of the first byte in this SerialBlob object to be copied; numbering starts at 1; must not be less than 1 and must be less than or equal to the length of this SerialBlob object
length:int: the number of bytes to be copied

Returns:byte[]

an array of bytes that is a copy of a region of this SerialBlob object, starting at the given position and containing the given number of consecutive bytes

Exceptions

SerialException:: if the given starting position is out of bounds; if free had previously been called on this object

hashCode back to summary

hashCode	back to summary
public int hashCode() Overrides java.lang.Object.hashCode. Returns a hash code for this `SerialBlob`. Returns:int a hash code value for this object.

public int hashCode()

Overrides java.lang.Object.hashCode.

Returns a hash code for this SerialBlob.

Returns:int: a hash code value for this object.

isValid	back to summary
private void isValid() throws SerialException Check to see if this object had previously had its `free` method called

length back to summary

length	back to summary
public long length() throws SerialException Implements java.sql.Blob.length. Retrieves the number of bytes in this `SerialBlob` object's array of bytes. Returns:long a `long` indicating the length in bytes of this `SerialBlob` object's array of bytes Exceptions SerialException: if an error occurs; if `free` had previously been called on this object

public long length() throws SerialException

Implements java.sql.Blob.length.

Retrieves the number of bytes in this SerialBlob object's array of bytes.

Returns:long

a long indicating the length in bytes of this SerialBlob object's array of bytes

Exceptions

SerialException:: if an error occurs; if free had previously been called on this object

position back to summary

position	back to summary
public long position(byte[] pattern, long start) throws SerialException, SQLException Implements java.sql.Blob.position. Returns the position in this `SerialBlob` object where the given pattern of bytes begins, starting the search at the specified position. Parameters pattern:byte[] the pattern of bytes for which to search start:long the position of the byte in this `SerialBlob` object from which to begin the search; the first position is `1`; must not be less than `1` nor greater than the length of this `SerialBlob` object Returns:long the position in this `SerialBlob` object where the given pattern begins, starting at the specified position; `-1` if the pattern is not found or the given starting position is out of bounds; position numbering for the return value starts at `1` Exceptions SerialException: if an error occurs when serializing the blob; if `free` had previously been called on this object SQLException: if there is an error accessing the `BLOB` value from the database

public long position(byte[] pattern, long start) throws SerialException, SQLException

Implements java.sql.Blob.position.

Returns the position in this SerialBlob object where the given pattern of bytes begins, starting the search at the specified position.

Parameters

pattern:byte[]: the pattern of bytes for which to search
start:long: the position of the byte in this SerialBlob object from which to begin the search; the first position is 1; must not be less than 1 nor greater than the length of this SerialBlob object

Returns:long

the position in this SerialBlob object where the given pattern begins, starting at the specified position; -1 if the pattern is not found or the given starting position is out of bounds; position numbering for the return value starts at 1

Exceptions

SerialException:: if an error occurs when serializing the blob; if free had previously been called on this object
SQLException:: if there is an error accessing the BLOB value from the database

position back to summary

position	back to summary
public long position(Blob pattern, long start) throws SerialException, SQLException Implements java.sql.Blob.position. Returns the position in this `SerialBlob` object where the given `Blob` object begins, starting the search at the specified position. Parameters pattern:Blob the `Blob` object for which to search; start:long the position of the byte in this `SerialBlob` object from which to begin the search; the first position is `1`; must not be less than `1` nor greater than the length of this `SerialBlob` object Returns:long the position in this `SerialBlob` object where the given `Blob` object begins, starting at the specified position; `-1` if the pattern is not found or the given starting position is out of bounds; position numbering for the return value starts at `1` Exceptions SerialException: if an error occurs when serializing the blob; if `free` had previously been called on this object SQLException: if there is an error accessing the `BLOB` value from the database

public long position(Blob pattern, long start) throws SerialException, SQLException

Implements java.sql.Blob.position.

Returns the position in this SerialBlob object where the given Blob object begins, starting the search at the specified position.

Parameters

pattern:Blob: the Blob object for which to search;
start:long: the position of the byte in this SerialBlob object from which to begin the search; the first position is 1; must not be less than 1 nor greater than the length of this SerialBlob object

Returns:long

the position in this SerialBlob object where the given Blob object begins, starting at the specified position; -1 if the pattern is not found or the given starting position is out of bounds; position numbering for the return value starts at 1

Exceptions

SerialException:: if an error occurs when serializing the blob; if free had previously been called on this object
SQLException:: if there is an error accessing the BLOB value from the database

readObject back to summary

readObject	back to summary
private void readObject(ObjectInputStream s) throws IOException, ClassNotFoundException readObject is called to restore the state of the SerialBlob from a stream. Parameters s:ObjectInputStream the `ObjectInputStream` to read from. Exceptions IOException: if an I/O error occurs. ClassNotFoundException: if the class of a serialized object could not be found.

private void readObject(ObjectInputStream s) throws IOException, ClassNotFoundException

readObject is called to restore the state of the SerialBlob from a stream.

Parameters

s:ObjectInputStream: the ObjectInputStream to read from.

Exceptions

IOException:: if an I/O error occurs.
ClassNotFoundException:: if the class of a serialized object could not be found.

setBinaryStream back to summary

setBinaryStream	back to summary
public OutputStream setBinaryStream(long pos) throws SerialException, SQLException Implements java.sql.Blob.setBinaryStream. Retrieves a stream that can be used to write to the `BLOB` value that this `Blob` object represents. The stream begins at position `pos`. This method forwards the `setBinaryStream()` call to the underlying `Blob` in the event that this `SerialBlob` object is instantiated with a `Blob`. If this `SerialBlob` is instantiated with a `byte` array, a `SerialException` is thrown. Parameters pos:long the position in the `BLOB` value at which to start writing Returns:OutputStream a `java.io.OutputStream` object to which data can be written Exceptions SerialException: if the SerialBlob in not instantiated with a `Blob` object that supports `setBinaryStream()`; if `free` had previously been called on this object SQLException: if there is an error accessing the `BLOB` value See Also `getBinaryStream`

public OutputStream setBinaryStream(long pos) throws SerialException, SQLException

Implements java.sql.Blob.setBinaryStream.

Retrieves a stream that can be used to write to the BLOB value that this Blob object represents. The stream begins at position pos. This method forwards the setBinaryStream() call to the underlying Blob in the event that this SerialBlob object is instantiated with a Blob. If this SerialBlob is instantiated with a byte array, a SerialException is thrown.

Parameters

pos:long: the position in the BLOB value at which to start writing

Returns:OutputStream

a java.io.OutputStream object to which data can be written

Exceptions

SerialException:: if the SerialBlob in not instantiated with a Blob object that supports setBinaryStream(); if free had previously been called on this object
SQLException:: if there is an error accessing the BLOB value

See Also

getBinaryStream

setBytes back to summary

setBytes	back to summary
public int setBytes(long pos, byte[] bytes) throws SerialException, SQLException Implements java.sql.Blob.setBytes. Writes the given array of bytes to the `BLOB` value that this `Blob` object represents, starting at position `pos`, and returns the number of bytes written. Parameters pos:long the position in the SQL `BLOB` value at which to start writing. The first position is `1`; must not be less than `1` nor greater than the length+1 of this `SerialBlob` object. bytes:byte[] the array of bytes to be written to the `BLOB` value that this `Blob` object represents Returns:int the number of bytes written Exceptions SerialException: if there is an error accessing the `BLOB` value; or if an invalid position is set; if `free` had previously been called on this object SQLException: if there is an error accessing the `BLOB` value from the database See Also `getBytes`

public int setBytes(long pos, byte[] bytes) throws SerialException, SQLException

Implements java.sql.Blob.setBytes.

Writes the given array of bytes to the BLOB value that this Blob object represents, starting at position pos, and returns the number of bytes written.

Parameters

pos:long: the position in the SQL BLOB value at which to start writing. The first position is 1; must not be less than 1 nor greater than the length+1 of this SerialBlob object.
bytes:byte[]: the array of bytes to be written to the BLOB value that this Blob object represents

Returns:int

the number of bytes written

Exceptions

SerialException:: if there is an error accessing the BLOB value; or if an invalid position is set; if free had previously been called on this object
SQLException:: if there is an error accessing the BLOB value from the database

See Also

getBytes

setBytes back to summary

setBytes	back to summary
public int setBytes(long pos, byte[] bytes, int offset, int length) throws SerialException, SQLException Implements java.sql.Blob.setBytes. Writes all or part of the given `byte` array to the `BLOB` value that this `Blob` object represents and returns the number of bytes written. Writing starts at position `pos` in the `BLOB` value; `length` bytes from the given byte array are written. Parameters pos:long the position in the `BLOB` object at which to start writing. The first position is `1`; must not be less than `1` nor greater than the length+1 of this `SerialBlob` object. bytes:byte[] the array of bytes to be written to the `BLOB` value offset:int the offset into the array `byte`s at which to start reading the bytes to be set. The first offset position is `0`; must not be less than `0` nor greater than the length of the array `byte`s length:int the number of bytes to be written to the `BLOB` value from the array of bytes `byte`s Returns:int the number of bytes written Exceptions SerialException: if there is an error accessing the `BLOB` value; if an invalid position is set; if an invalid offset value is set; or the combined values of the `length` and `offset` is greater than the length of `byte`s; if `free` had previously been called on this object SQLException: if there is an error accessing the `BLOB` value from the database. See Also `getBytes`

public int setBytes(long pos, byte[] bytes, int offset, int length) throws SerialException, SQLException

Implements java.sql.Blob.setBytes.

Writes all or part of the given byte array to the BLOB value that this Blob object represents and returns the number of bytes written. Writing starts at position pos in the BLOB value; length bytes from the given byte array are written.

Parameters

pos:long: the position in the BLOB object at which to start writing. The first position is 1; must not be less than 1 nor greater than the length+1 of this SerialBlob object.
bytes:byte[]: the array of bytes to be written to the BLOB value
offset:int: the offset into the array bytes at which to start reading the bytes to be set. The first offset position is 0; must not be less than 0 nor greater than the length of the array bytes
length:int: the number of bytes to be written to the BLOB value from the array of bytes bytes

Returns:int

the number of bytes written

Exceptions

SerialException:: if there is an error accessing the BLOB value; if an invalid position is set; if an invalid offset value is set; or the combined values of the length and offset is greater than the length of bytes; if free had previously been called on this object
SQLException:: if there is an error accessing the BLOB value from the database.

See Also

getBytes

truncate back to summary

truncate	back to summary
public void truncate(long length) throws SerialException Implements java.sql.Blob.truncate. Truncates the `BLOB` value that this `Blob` object represents to be `len` bytes in length. Parameters length:long the length, in bytes, to which the `BLOB` value that this `Blob` object represents should be truncated Exceptions SerialException: if there is an error accessing the Blob value; or the length to truncate is greater that the SerialBlob length; if `free` had previously been called on this object

public void truncate(long length) throws SerialException

Implements java.sql.Blob.truncate.

Truncates the BLOB value that this Blob object represents to be len bytes in length.

Parameters

length:long: the length, in bytes, to which the BLOB value that this Blob object represents should be truncated

Exceptions

SerialException:: if there is an error accessing the Blob value; or the length to truncate is greater that the SerialBlob length; if free had previously been called on this object

writeObject back to summary

writeObject	back to summary
private void writeObject(ObjectOutputStream s) throws IOException writeObject is called to save the state of the SerialBlob to a stream. Parameters s:ObjectOutputStream the `ObjectOutputStream` to write to. Exceptions IOException: if an I/O error occurs.

private void writeObject(ObjectOutputStream s) throws IOException

writeObject is called to save the state of the SerialBlob to a stream.

Parameters

s:ObjectOutputStream: the ObjectOutputStream to write to.

Exceptions

IOException:: if an I/O error occurs.

public Class SerialBlob

Thread safety

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