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java.lang.Object java.io.InputStream org.apache.jackrabbit.core.data.db.DbInputStream
public class DbInputStream
This class represents an input stream backed by a database. It allows the stream to be used by keeping the database objects open until the stream is closed. When the stream is finished or closed, then the database objects are freed.
Field Summary | |
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protected ConnectionRecoveryManager |
conn
|
protected boolean |
endOfStream
|
protected DataIdentifier |
identifier
|
protected InputStream |
in
|
protected ResultSet |
rs
|
protected DbDataStore |
store
|
Constructor Summary | |
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protected |
DbInputStream(DbDataStore store,
DataIdentifier identifier)
Create a database input stream for the given identifier. |
Method Summary | |
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int |
available()
|
void |
close()
When the stream is consumed, the database objects held by the instance are closed. |
void |
mark(int readlimit)
|
boolean |
markSupported()
|
protected void |
openStream()
Open the stream if required. |
int |
read()
When the stream is consumed, the database objects held by the instance are closed. |
int |
read(byte[] b)
When the stream is consumed, the database objects held by the instance are closed. |
int |
read(byte[] b,
int off,
int len)
When the stream is consumed, the database objects held by the instance are closed. |
void |
reset()
|
long |
skip(long n)
|
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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protected DbDataStore store
protected DataIdentifier identifier
protected boolean endOfStream
protected InputStream in
protected ConnectionRecoveryManager conn
protected ResultSet rs
Constructor Detail |
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protected DbInputStream(DbDataStore store, DataIdentifier identifier)
store
- the database data storeidentifier
- the data identifierMethod Detail |
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protected void openStream() throws IOException
IOException
public int read() throws IOException
read
in class InputStream
IOException
public int read(byte[] b) throws IOException
read
in class InputStream
IOException
public int read(byte[] b, int off, int len) throws IOException
read
in class InputStream
IOException
public void close() throws IOException
close
in interface Closeable
close
in class InputStream
IOException
public long skip(long n) throws IOException
skip
in class InputStream
IOException
public int available() throws IOException
available
in class InputStream
IOException
public void mark(int readlimit)
mark
in class InputStream
public void reset() throws IOException
reset
in class InputStream
IOException
public boolean markSupported()
markSupported
in class InputStream
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