); try { value.copy().increment().bind( updatePreparedStatement, 1 ); value.bind( updatePreparedStatement, 2 );
@Test public void testBasicHiloAlgorithm() { // mimic an initialValue of 1 and increment of 20 final long initialValue = 1; final long incrementSize = 2; // initialization IntegralDataTypeHolder lastSourceValue = makeHolder().initialize( 1 ); IntegralDataTypeHolder upperLimit = lastSourceValue.copy().multiplyBy( incrementSize ).increment(); IntegralDataTypeHolder value = upperLimit.copy().subtract( incrementSize ); assertEquals( 1, lastSourceValue.makeValue().longValue() ); assertEquals( 3, upperLimit.makeValue().longValue() ); assertEquals( 1, value.makeValue().longValue() ); value.increment(); value.increment(); assertFalse( upperLimit.gt( value ) ); // at which point we would "clock over" lastSourceValue.increment(); upperLimit = lastSourceValue.copy().multiplyBy( incrementSize ).increment(); assertEquals( 2, lastSourceValue.makeValue().longValue() ); assertEquals( 5, upperLimit.makeValue().longValue() ); assertEquals( 3, value.makeValue().longValue() ); } }
@Override public synchronized Serializable generate(AccessCallback callback) { final GenerationState generationState = locateGenerationState( callback.getTenantIdentifier() ); if ( generationState.lastSourceValue == null || ! generationState.value.lt( generationState.upperLimitValue ) ) { generationState.lastSourceValue = callback.getNextValue(); generationState.upperLimitValue = generationState.lastSourceValue.copy().add( incrementSize ); generationState.value = generationState.lastSourceValue.copy(); // handle cases where initial-value is less that one (hsqldb for instance). while ( generationState.value.lt( 1 ) ) { generationState.value.increment(); } } return generationState.value.makeValueThenIncrement(); }
@Override public synchronized Serializable generate(AccessCallback callback) { final GenerationState generationState = locateGenerationState( callback.getTenantIdentifier() ); if ( generationState.lastSourceValue == null ) { // first call, so initialize ourselves. we need to read the database // value and set up the 'bucket' boundaries generationState.lastSourceValue = callback.getNextValue(); while ( generationState.lastSourceValue.lt( 1 ) ) { generationState.lastSourceValue = callback.getNextValue(); } // upperLimit defines the upper end of the bucket values generationState.upperLimit = generationState.lastSourceValue.copy().multiplyBy( incrementSize ).increment(); // initialize value to the low end of the bucket generationState.value = generationState.upperLimit.copy().subtract( incrementSize ); } else if ( ! generationState.upperLimit.gt( generationState.value ) ) { generationState.lastSourceValue = callback.getNextValue(); generationState.upperLimit = generationState.lastSourceValue.copy().multiplyBy( incrementSize ).increment(); generationState.value = generationState.upperLimit.copy().subtract( incrementSize ); } return generationState.value.makeValueThenIncrement(); }
public void testIncrement() { IntegralDataTypeHolder holder = makeHolder(); holder.initialize( 0 ); int i = 0; for ( ; i < 5008; i++ ) { holder.increment(); } assertEquals( holder.copy().initialize( i ), holder ); } @Test
@Override public Serializable generate(AccessCallback callback) { if ( callback.getTenantIdentifier() == null ) { final GenerationState local = localAssignedIds.get(); if ( local.value != null && local.value.lt( local.upperLimitValue ) ) { return local.value.makeValueThenIncrement(); } } synchronized (this) { final GenerationState generationState = locateGenerationState( callback.getTenantIdentifier() ); if ( generationState.lastSourceValue == null || !generationState.value.lt( generationState.upperLimitValue )) { generationState.lastSourceValue = callback.getNextValue(); generationState.upperLimitValue = generationState.lastSourceValue.copy().add( incrementSize ); generationState.value = generationState.lastSourceValue.copy(); // handle cases where initial-value is less that one (hsqldb for instance). while (generationState.value.lt( 1 )) { generationState.value.increment(); } } return generationState.value.makeValueThenIncrement(); } }
try { if ( rs.next() ) { previousValueHolder.initialize( rs, 0L ).increment();
IntegralDataTypeHolder holder = makeHolder(); try { holder.increment(); fail();
PreparedStatement ups = connection.prepareStatement(update); try { value.copy().increment().bind( ups, 1 ); value.bind( ups, 2 ); rows = ups.executeUpdate();
@Override public Serializable generate(AccessCallback callback) { if ( lastSourceValue == null || ! value.lt( lastSourceValue.copy().add( incrementSize ) ) ) { lastSourceValue = callback.getNextValue(); value = lastSourceValue.copy(); // handle cases where initial-value is less that one (hsqldb for instance). while ( value.lt( 1 ) ) { value.increment(); } } return value.makeValueThenIncrement(); }
PreparedStatement ups = connection.prepareStatement( update ); try { value.copy().increment().bind( ups, 1 ); value.bind( ups, 2 ); rows = ups.executeUpdate();
@Override public Serializable generate(AccessCallback callback) { if ( lastSourceValue == null || ! value.lt( lastSourceValue.copy().add( incrementSize ) ) ) { lastSourceValue = callback.getNextValue(); value = lastSourceValue.copy(); // handle cases where initial-value is less that one (hsqldb for instance). while ( value.lt( 1 ) ) { value.increment(); } } return value.makeValueThenIncrement(); }
@Override public synchronized Serializable generate(AccessCallback callback) { if ( lastSourceValue == null ) { // first call, so initialize ourselves. we need to read the database // value and set up the 'bucket' boundaries lastSourceValue = callback.getNextValue(); while ( lastSourceValue.lt( 1 ) ) { lastSourceValue = callback.getNextValue(); } // upperLimit defines the upper end of the bucket values upperLimit = lastSourceValue.copy().multiplyBy( incrementSize ).increment(); // initialize value to the low end of the bucket value = upperLimit.copy().subtract( incrementSize ); } else if ( ! upperLimit.gt( value ) ) { lastSourceValue = callback.getNextValue(); upperLimit = lastSourceValue.copy().multiplyBy( incrementSize ).increment(); } return value.makeValueThenIncrement(); }
@Override public synchronized Serializable generate(AccessCallback callback) { if ( lastSourceValue == null ) { // first call, so initialize ourselves. we need to read the database // value and set up the 'bucket' boundaries lastSourceValue = callback.getNextValue(); while ( lastSourceValue.lt( 1 ) ) { lastSourceValue = callback.getNextValue(); } // upperLimit defines the upper end of the bucket values upperLimit = lastSourceValue.copy().multiplyBy( incrementSize ).increment(); // initialize value to the low end of the bucket value = upperLimit.copy().subtract( incrementSize ); } else if ( ! upperLimit.gt( value ) ) { lastSourceValue = callback.getNextValue(); upperLimit = lastSourceValue.copy().multiplyBy( incrementSize ).increment(); } return value.makeValueThenIncrement(); }
ResultSet rs = st.executeQuery(); try { if (rs.next()) previousValueHolder.initialize(rs, 0L).increment(); else previousValueHolder.initialize(1L); sql = null;
ResultSet rs = st.executeQuery(); try { if (rs.next()) previousValueHolder.initialize(rs, 0L).increment(); else previousValueHolder.initialize(1L); sql = null;
@Override public synchronized Serializable generate(AccessCallback callback) { final GenerationState generationState = locateGenerationState( callback.getTenantIdentifier() ); if ( generationState.lastSourceValue == null ) { // first call, so initialize ourselves. we need to read the database // value and set up the 'bucket' boundaries generationState.lastSourceValue = callback.getNextValue(); while ( generationState.lastSourceValue.lt( 1 ) ) { generationState.lastSourceValue = callback.getNextValue(); } // upperLimit defines the upper end of the bucket values generationState.upperLimit = generationState.lastSourceValue.copy().multiplyBy( incrementSize ).increment(); // initialize value to the low end of the bucket generationState.value = generationState.upperLimit.copy().subtract( incrementSize ); } else if ( ! generationState.upperLimit.gt( generationState.value ) ) { generationState.lastSourceValue = callback.getNextValue(); generationState.upperLimit = generationState.lastSourceValue.copy().multiplyBy( incrementSize ).increment(); generationState.value = generationState.upperLimit.copy().subtract( incrementSize ); } return generationState.value.makeValueThenIncrement(); }
@Override public synchronized Serializable generate(AccessCallback callback) { final GenerationState generationState = locateGenerationState( callback.getTenantIdentifier() ); if ( generationState.lastSourceValue == null || ! generationState.value.lt( generationState.upperLimitValue ) ) { generationState.lastSourceValue = callback.getNextValue(); generationState.upperLimitValue = generationState.lastSourceValue.copy().add( incrementSize ); generationState.value = generationState.lastSourceValue.copy(); // handle cases where initial-value is less that one (hsqldb for instance). while ( generationState.value.lt( 1 ) ) { generationState.value.increment(); } } return generationState.value.makeValueThenIncrement(); }
@Override public Serializable generate(AccessCallback callback) { if ( callback.getTenantIdentifier() == null ) { final GenerationState local = localAssignedIds.get(); if ( local.value != null && local.value.lt( local.upperLimitValue ) ) { return local.value.makeValueThenIncrement(); } } synchronized (this) { final GenerationState generationState = locateGenerationState( callback.getTenantIdentifier() ); if ( generationState.lastSourceValue == null || !generationState.value.lt( generationState.upperLimitValue )) { generationState.lastSourceValue = callback.getNextValue(); generationState.upperLimitValue = generationState.lastSourceValue.copy().add( incrementSize ); generationState.value = generationState.lastSourceValue.copy(); // handle cases where initial-value is less that one (hsqldb for instance). while (generationState.value.lt( 1 )) { generationState.value.increment(); } } return generationState.value.makeValueThenIncrement(); } }
try { if ( rs.next() ) { previousValueHolder.initialize( rs, 0L ).increment();