Examples of jdbm.btree.BTree.browse()

jdbm.btree.BTree.browse()
Get a browser initially positioned at the beginning of the BTree.
WARNING: �If you make structural modifications to the BTree during browsing, you will get inconsistent browing results. @return Browser positionned at the beginning of the BTree.


            // Handle values if they are stored in another BTree
            BTree tree = getBTree( values.getBTreeRedirect() );


            jdbm.helper.Tuple tuple = new jdbm.helper.Tuple();
            TupleBrowser<K, V> browser = tree.browse();
            browser.getNext( tuple );


            return ( V ) tuple.getKey();
        }
        catch ( IOException ioe )

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            // Handle values if they are stored in another BTree
            BTree tree = getBTree( values.getBTreeRedirect() );


            jdbm.helper.Tuple tuple = new jdbm.helper.Tuple();
            TupleBrowser<K, V> browser = tree.browse();
            browser.getNext( tuple );


            return ( V ) tuple.getKey();
        }
        catch ( IOException ioe )

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        // Handle values if they are stored in another BTree
        BTree tree = getBTree( values.getBTreeRedirect() );


        jdbm.helper.Tuple tuple = new jdbm.helper.Tuple();
        tree.browse().getNext( tuple );
        //noinspection unchecked
        
        return ( V ) tuple.getKey();
    }

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            System.out.println();
            System.out.println( "Person                   Occupation       " );
            System.out.println( "------------------       ------------------" );


            // traverse people in order
            browser = tree.browse();
            while ( browser.getNext( tuple ) ) {
                print( tuple );
            }


            // traverse people in reverse order

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            }


            // traverse people in reverse order
            System.out.println();
            System.out.println( "Reverse order:" );
            browser = tree.browse( null ); // position browser at end of the list


            while ( browser.getPrevious( tuple ) ) {
                print( tuple );
            }

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            // display people whose name start with PREFIX range
            System.out.println();
            System.out.println( "All people whose name start with '" + PREFIX + "':" );


            browser = tree.browse( PREFIX );
            while ( browser.getNext( tuple ) ) {
                String key = (String) tuple.getKey();
                if ( key.startsWith( PREFIX ) ) {
                    print( tuple );
                } else {

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        // Handle values if they are stored in another BTree
        BTree tree = getBTree( values.getBTreeRedirect() );


        jdbm.helper.Tuple tuple = new jdbm.helper.Tuple();
        tree.browse().getNext( tuple );
        //noinspection unchecked
        
        return ( V ) tuple.getKey();
    }

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            // Handle values if they are stored in another BTree
            BTree tree = getBTree( values.getBTreeRedirect() );


            jdbm.helper.Tuple tuple = new jdbm.helper.Tuple();
            TupleBrowser<K, V> browser = tree.browse();
            browser.getNext( tuple );


            return ( V ) tuple.getKey();
        }
        catch ( IOException ioe )

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            // Handle values if they are stored in another BTree
            BTree tree = getBTree( values.getBTreeRedirect() );


            jdbm.helper.Tuple tuple = new jdbm.helper.Tuple();
            TupleBrowser<K, V> browser = tree.browse();
            browser.getNext( tuple );


            return ( V ) tuple.getKey();
        }
        catch ( IOException ioe )

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        }


        // Handle values if they are stored in another BTree
        BTree tree = getBTree( values.getBTreeRedirect() );
        jdbm.helper.Tuple tuple = new jdbm.helper.Tuple();
        tree.browse().getNext( tuple );
        //noinspection unchecked
        
        return ( V ) tuple.getKey();
    }

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