public class ByteArrayBlob extends AbstractBlob
Constructor and Description |
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ByteArrayBlob(byte[] data)
Construct a ByteArrayBlob initially backed by the given byte array.
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ByteArrayBlob(byte[] data,
int length)
Construct a ByteArrayBlob initially backed by the given byte array.
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ByteArrayBlob(int capacity)
Construct a ByteArrayBlob with the given initial capacity.
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Modifier and Type | Method and Description |
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long |
getLength()
Returns the length of this Blob, in bytes.
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java.lang.Object |
getLocator()
Always returns null.
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java.io.InputStream |
openInputStream()
Returns an InputStream for reading Blob data positioned at the
start.
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java.io.InputStream |
openInputStream(long pos)
Returns an InputStream for reading Blob data.
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java.io.InputStream |
openInputStream(long pos,
int bufferSize)
Returns an InputStream for reading Blob data.
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java.io.OutputStream |
openOutputStream()
Returns an OutputStream for writing Blob data, positioned at the
start.
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java.io.OutputStream |
openOutputStream(long pos)
Returns an OutputStream for writing Blob data.
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java.io.OutputStream |
openOutputStream(long pos,
int bufferSize)
Returns an OutputStream for writing Blob data.
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void |
setLength(long length)
Set the length of this Blob, in bytes.
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public ByteArrayBlob(int capacity)
capacity
- initial capacity of internal byte arraypublic ByteArrayBlob(byte[] data)
data
- initial data backing the Blobpublic ByteArrayBlob(byte[] data, int length)
data
- initial data backing the Bloblength
- initial length of datapublic java.io.InputStream openInputStream()
Blob
public java.io.InputStream openInputStream(long pos)
Blob
pos
- desired zero-based position to read frompublic java.io.InputStream openInputStream(long pos, int bufferSize)
Blob
pos
- desired zero-based position to read frombufferSize
- suggest that the input stream buffer be at least this large (in bytes)public long getLength()
Blob
public java.io.OutputStream openOutputStream()
Blob
public java.io.OutputStream openOutputStream(long pos)
Blob
pos
- desired zero-based position to write topublic java.io.OutputStream openOutputStream(long pos, int bufferSize)
Blob
pos
- desired zero-based position to write tobufferSize
- suggest that the output stream buffer be at least this large (in bytes)public void setLength(long length) throws PersistException
Blob
length
- new length to set toPersistDeniedException
- if Blob is read-onlyPersistException
public java.lang.Object getLocator()
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