| com.quadcap.sql.index.BCursor
All known Subclasses: com.quadcap.sql.index.BtreeCursor,
| BCursor | | public interface BCursor (Code) | | BCursor
author:
Stan Bailes |
| Method Summary | |
| boolean | absolute(int x)
Move to the specified record; one-based.
-1 means last record, -2 means next to last, etc.
true if the specified record exists. | | void | afterLast()
| | void | beforeFirst()
| | void | close()
Release any resources held by this cursor (but maintain ownership of
it -- it can be resurrected by another positioning call. | | boolean | delete()
| | int | getKey(byte[] buf)
| | byte[] | getKey()
| | byte[] | getKeyBuf()
| | int | getKeyLen()
| | int | getVal(byte[] buf)
| | byte[] | getVal()
| | long | getValAsLong()
| | byte[] | getValBuf()
| | int | getValLen()
| | boolean | insert(byte[] key, int klen, byte[] data, int doff, int dlen)
Insert a new key/data pair. | | boolean | insert(byte[] key, byte[] data)
| | boolean | next()
Move past the next record and return true the cursor is
now pointed at a valid record. | | long | position()
| | boolean | prev()
Move before the previous record and return true the cursor is
now pointed at a valid record. | | void | release()
| | boolean | replace(byte[] data, int doff, int dlen)
| | boolean | replace(byte[] data)
| | boolean | seek(byte[] key, int len)
| | boolean | seek(byte[] buf)
| | void | setKeyBuf(byte[] buf)
| | void | setValBuf(byte[] buf)
| | long | size()
|
| absolute | | boolean absolute(int x) throws IOException(Code) | | Move to the specified record; one-based.
-1 means last record, -2 means next to last, etc.
true if the specified record exists. |
| afterLast | | void afterLast() throws IOException(Code) | | Position the cursor after the last record
|
| beforeFirst | | void beforeFirst() throws IOException(Code) | | Position cursor before the first record
|
| close | | void close() throws IOException(Code) | | Release any resources held by this cursor (but maintain ownership of
it -- it can be resurrected by another positioning call.
|
| delete | | boolean delete() throws IOException(Code) | | Delete the currently positioned record
|
| getKeyBuf | | byte[] getKeyBuf()(Code) | | |
| getKeyLen | | int getKeyLen()(Code) | | |
| getValBuf | | byte[] getValBuf()(Code) | | |
| getValLen | | int getValLen()(Code) | | |
| insert | | boolean insert(byte[] key, int klen, byte[] data, int doff, int dlen) throws IOException(Code) | | Insert a new key/data pair. We are presumably positioned just before
the spot where the new record should go, but we will check, anyway.
|
| next | | boolean next() throws IOException(Code) | | Move past the next record and return true the cursor is
now pointed at a valid record.
|
| prev | | boolean prev() throws IOException(Code) | | Move before the previous record and return true the cursor is
now pointed at a valid record.
|
| release | | void release()(Code) | | Release this cursor back to the pool
|
| replace | | boolean replace(byte[] data, int doff, int dlen) throws IOException(Code) | | Replace the data portion of the current item with the specified data
|
| seek | | boolean seek(byte[] key, int len) throws IOException(Code) | | Seek to (before) the specified key
|
| seek | | boolean seek(byte[] buf) throws IOException(Code) | | Seek to (before) the specified key
|
| setKeyBuf | | void setKeyBuf(byte[] buf)(Code) | | |
| setValBuf | | void setValBuf(byte[] buf)(Code) | | |
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