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<div class="subTitle">org.hsqldb.jdbc</div>
<h2 title="Class JDBCBlobClient" class="title">Class JDBCBlobClient</h2>
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<div class="contentContainer">
<ul class="inheritance">
<li>java.lang.Object</li>
<li>
<ul class="inheritance">
<li>org.hsqldb.jdbc.JDBCBlobClient</li>
</ul>
</li>
</ul>
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<dl>
<dt>All Implemented Interfaces:</dt>
<dd>java.sql.Blob</dd>
</dl>
<hr>
<br>
<pre>public class <span class="typeNameLabel">JDBCBlobClient</span>
extends java.lang.Object
implements java.sql.Blob</pre>
<div class="block">A wrapper for HSQLDB BlobData objects.
Instances of this class are returned by calls to ResultSet methods.</div>
<dl>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>1.9.0</dd>
<dt><span class="simpleTagLabel">Author:</span></dt>
<dd>Fred Toussi (fredt@users dot sourceforge.net)</dd>
</dl>
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<caption><span>Constructors</span><span class="tabEnd"> </span></caption>
<tr>
<th class="colOne" scope="col">Constructor and Description</th>
</tr>
<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../org/hsqldb/jdbc/JDBCBlobClient.html#JDBCBlobClient-org.hsqldb.SessionInterface-org.hsqldb.types.BlobDataID-">JDBCBlobClient</a></span>(org.hsqldb.SessionInterface session,
org.hsqldb.types.BlobDataID blob)</code> </td>
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<h3>Method Summary</h3>
<table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation">
<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tr id="i0" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/hsqldb/jdbc/JDBCBlobClient.html#clearUpdates--">clearUpdates</a></span>()</code> </td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/hsqldb/jdbc/JDBCBlobClient.html#free--">free</a></span>()</code>
<div class="block">This method frees the <code>Blob</code> object and releases the resources that
it holds.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>java.io.InputStream</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/hsqldb/jdbc/JDBCBlobClient.html#getBinaryStream--">getBinaryStream</a></span>()</code>
<div class="block">Retrieves the <code>BLOB</code> value designated by this
<code>Blob</code> instance as a stream.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>java.io.InputStream</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/hsqldb/jdbc/JDBCBlobClient.html#getBinaryStream-long-long-">getBinaryStream</a></span>(long pos,
long length)</code>
<div class="block">Returns an <code>InputStream</code> object that contains a partial <code>Blob</code> value,
starting with the byte specified by pos, which is length bytes in length.</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>org.hsqldb.types.BlobDataID</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/hsqldb/jdbc/JDBCBlobClient.html#getBlob--">getBlob</a></span>()</code> </td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>byte[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/hsqldb/jdbc/JDBCBlobClient.html#getBytes-long-int-">getBytes</a></span>(long pos,
int length)</code>
<div class="block">Retrieves all or part of the <code>BLOB</code> value that this
<code>Blob</code> object represents, as an array of bytes.</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/hsqldb/jdbc/JDBCBlobClient.html#isClosed--">isClosed</a></span>()</code> </td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/hsqldb/jdbc/JDBCBlobClient.html#length--">length</a></span>()</code>
<div class="block">Returns the number of bytes in the <code>BLOB</code> value designated
by this <code>Blob</code> object.</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/hsqldb/jdbc/JDBCBlobClient.html#position-java.sql.Blob-long-">position</a></span>(java.sql.Blob pattern,
long start)</code>
<div class="block">Retrieves the byte position in the <code>BLOB</code> value designated
by this <code>Blob</code> object at which <code>pattern</code> begins.</div>
</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/hsqldb/jdbc/JDBCBlobClient.html#position-byte:A-long-">position</a></span>(byte[] pattern,
long start)</code>
<div class="block">Retrieves the byte position at which the specified byte array
<code>pattern</code> begins within the <code>BLOB</code> value that
this <code>Blob</code> object represents.</div>
</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code>java.io.OutputStream</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/hsqldb/jdbc/JDBCBlobClient.html#setBinaryStream-long-">setBinaryStream</a></span>(long pos)</code>
<div class="block">Retrieves a stream that can be used to write to the <code>BLOB</code>
value that this <code>Blob</code> object represents.</div>
</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/hsqldb/jdbc/JDBCBlobClient.html#setBytes-long-byte:A-">setBytes</a></span>(long pos,
byte[] bytes)</code>
<div class="block">Writes the given array of bytes to the <code>BLOB</code> value that
this <code>Blob</code> object represents, starting at position
<code>pos</code>, and returns the number of bytes written.</div>
</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/hsqldb/jdbc/JDBCBlobClient.html#setBytes-long-byte:A-int-int-">setBytes</a></span>(long pos,
byte[] bytes,
int offset,
int len)</code>
<div class="block">Writes all or part of the given <code>byte</code> array to the
<code>BLOB</code> value that this <code>Blob</code> object represents
and returns the number of bytes written.</div>
</td>
</tr>
<tr id="i13" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/hsqldb/jdbc/JDBCBlobClient.html#setWritable-org.hsqldb.jdbc.JDBCResultSet-int-">setWritable</a></span>(<a href="../../../org/hsqldb/jdbc/JDBCResultSet.html" title="class in org.hsqldb.jdbc">JDBCResultSet</a> result,
int index)</code> </td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/hsqldb/jdbc/JDBCBlobClient.html#truncate-long-">truncate</a></span>(long len)</code>
<div class="block">Truncates the <code>BLOB</code> value that this <code>Blob</code>
object represents to be <code>len</code> bytes in length.</div>
</td>
</tr>
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<h3>Methods inherited from class java.lang.Object</h3>
<code>equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li>
</ul>
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<h3>Constructor Detail</h3>
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<h4>JDBCBlobClient</h4>
<pre>public JDBCBlobClient(org.hsqldb.SessionInterface session,
org.hsqldb.types.BlobDataID blob)</pre>
</li>
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<h4>length</h4>
<pre>public long length()
throws java.sql.SQLException</pre>
<div class="block">Returns the number of bytes in the <code>BLOB</code> value designated
by this <code>Blob</code> object.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>length</code> in interface <code>java.sql.Blob</code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>length of the <code>BLOB</code> in bytes</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.sql.SQLException</code> - if there is an error accessing the length of the
<code>BLOB</code></dd>
</dl>
</li>
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<h4>getBytes</h4>
<pre>public byte[] getBytes(long pos,
int length)
throws java.sql.SQLException</pre>
<div class="block">Retrieves all or part of the <code>BLOB</code> value that this
<code>Blob</code> object represents, as an array of bytes.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>getBytes</code> in interface <code>java.sql.Blob</code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>pos</code> - the ordinal position of the first byte in the
<code>BLOB</code> value to be extracted; the first byte is at
position 1</dd>
<dd><code>length</code> - the number of consecutive bytes to be copied</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a byte array containing up to <code>length</code> consecutive
bytes from the <code>BLOB</code> value designated by this
<code>Blob</code> object, starting with the byte at position
<code>pos</code></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.sql.SQLException</code> - if there is an error accessing the
<code>BLOB</code> value</dd>
</dl>
</li>
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<h4>getBinaryStream</h4>
<pre>public java.io.InputStream getBinaryStream()
throws java.sql.SQLException</pre>
<div class="block">Retrieves the <code>BLOB</code> value designated by this
<code>Blob</code> instance as a stream.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>getBinaryStream</code> in interface <code>java.sql.Blob</code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a stream containing the <code>BLOB</code> data</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.sql.SQLException</code> - if there is an error accessing the
<code>BLOB</code> value</dd>
</dl>
</li>
</ul>
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<h4>position</h4>
<pre>public long position(byte[] pattern,
long start)
throws java.sql.SQLException</pre>
<div class="block">Retrieves the byte position at which the specified byte array
<code>pattern</code> begins within the <code>BLOB</code> value that
this <code>Blob</code> object represents.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>position</code> in interface <code>java.sql.Blob</code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>pattern</code> - the byte array for which to search</dd>
<dd><code>start</code> - the position at which to begin searching; the first
position is 1</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the position at which the pattern appears, else -1</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.sql.SQLException</code> - if there is an error accessing the
<code>BLOB</code></dd>
</dl>
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<h4>position</h4>
<pre>public long position(java.sql.Blob pattern,
long start)
throws java.sql.SQLException</pre>
<div class="block">Retrieves the byte position in the <code>BLOB</code> value designated
by this <code>Blob</code> object at which <code>pattern</code> begins.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>position</code> in interface <code>java.sql.Blob</code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>pattern</code> - the <code>Blob</code> object designating the
<code>BLOB</code> value for which to search</dd>
<dd><code>start</code> - the position in the <code>BLOB</code> value at which to
begin searching; the first position is 1</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the position at which the pattern begins, else -1</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.sql.SQLException</code> - if there is an error accessing the
<code>BLOB</code> value</dd>
</dl>
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<h4>setBytes</h4>
<pre>public int setBytes(long pos,
byte[] bytes)
throws java.sql.SQLException</pre>
<div class="block">Writes the given array of bytes to the <code>BLOB</code> value that
this <code>Blob</code> object represents, starting at position
<code>pos</code>, and returns the number of bytes written.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>setBytes</code> in interface <code>java.sql.Blob</code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>pos</code> - the position in the <code>BLOB</code> object at which to
start writing</dd>
<dd><code>bytes</code> - the array of bytes to be written to the
<code>BLOB</code> value that this <code>Blob</code> object
represents</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the number of bytes written</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.sql.SQLException</code> - if there is an error accessing the
<code>BLOB</code> value</dd>
</dl>
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<h4>setBytes</h4>
<pre>public int setBytes(long pos,
byte[] bytes,
int offset,
int len)
throws java.sql.SQLException</pre>
<div class="block">Writes all or part of the given <code>byte</code> array to the
<code>BLOB</code> value that this <code>Blob</code> object represents
and returns the number of bytes written.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>setBytes</code> in interface <code>java.sql.Blob</code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>pos</code> - the position in the <code>BLOB</code> object at which to
start writing</dd>
<dd><code>bytes</code> - the array of bytes to be written to this
<code>BLOB</code> object</dd>
<dd><code>offset</code> - the offset into the array <code>bytes</code> at which
to start reading the bytes to be set</dd>
<dd><code>len</code> - the number of bytes to be written to the <code>BLOB</code>
value from the array of bytes <code>bytes</code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the number of bytes written</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.sql.SQLException</code> - if there is an error accessing the
<code>BLOB</code> value</dd>
</dl>
</li>
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<h4>setBinaryStream</h4>
<pre>public java.io.OutputStream setBinaryStream(long pos)
throws java.sql.SQLException</pre>
<div class="block">Retrieves a stream that can be used to write to the <code>BLOB</code>
value that this <code>Blob</code> object represents.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>setBinaryStream</code> in interface <code>java.sql.Blob</code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>pos</code> - the position in the <code>BLOB</code> value at which to
start writing</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a <code>java.io.OutputStream</code> object to which data can
be written</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.sql.SQLException</code> - if there is an error accessing the
<code>BLOB</code> value</dd>
</dl>
</li>
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<h4>truncate</h4>
<pre>public void truncate(long len)
throws java.sql.SQLException</pre>
<div class="block">Truncates the <code>BLOB</code> value that this <code>Blob</code>
object represents to be <code>len</code> bytes in length.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>truncate</code> in interface <code>java.sql.Blob</code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>len</code> - the length, in bytes, to which the <code>BLOB</code> value
that this <code>Blob</code> object represents should be truncated</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.sql.SQLException</code> - if there is an error accessing the
<code>BLOB</code> value</dd>
</dl>
</li>
</ul>
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<h4>free</h4>
<pre>public void free()
throws java.sql.SQLException</pre>
<div class="block">This method frees the <code>Blob</code> object and releases the resources that
it holds. The object is invalid once the <code>free</code>
method is called.
<p>
After <code>free</code> has been called, any attempt to invoke a
method other than <code>free</code> will result in a <code>SQLException</code>
being thrown. If <code>free</code> is called multiple times, the subsequent
calls to <code>free</code> are treated as a no-op.
<p></div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>free</code> in interface <code>java.sql.Blob</code></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.sql.SQLException</code> - if an error occurs releasing
the Blob's resources</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>JDK 1.6, HSQLDB 2.0</dd>
</dl>
</li>
</ul>
<a name="getBinaryStream-long-long-">
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<h4>getBinaryStream</h4>
<pre>public java.io.InputStream getBinaryStream(long pos,
long length)
throws java.sql.SQLException</pre>
<div class="block">Returns an <code>InputStream</code> object that contains a partial <code>Blob</code> value,
starting with the byte specified by pos, which is length bytes in length.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>getBinaryStream</code> in interface <code>java.sql.Blob</code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>pos</code> - the offset to the first byte of the partial value to be retrieved.
The first byte in the <code>Blob</code> is at position 1</dd>
<dd><code>length</code> - the length in bytes of the partial value to be retrieved</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd><code>InputStream</code> through which the partial <code>Blob</code> value can be read.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.sql.SQLException</code> - if pos is less than 1 or if pos is greater than the number of bytes
in the <code>Blob</code> or if pos + length is greater than the number of bytes
in the <code>Blob</code></dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>JDK 1.6, HSQLDB 2.0</dd>
</dl>
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<h4>isClosed</h4>
<pre>public boolean isClosed()</pre>
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<h4>getBlob</h4>
<pre>public org.hsqldb.types.BlobDataID getBlob()</pre>
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<h4>setWritable</h4>
<pre>public void setWritable(<a href="../../../org/hsqldb/jdbc/JDBCResultSet.html" title="class in org.hsqldb.jdbc">JDBCResultSet</a> result,
int index)</pre>
</li>
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<h4>clearUpdates</h4>
<pre>public void clearUpdates()</pre>
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