private final int[] executeStatic() {
List<Query> queries = new ArrayList<Query>();
QueryCollector collector = new QueryCollector();
Configuration local =
configuration.derive(
Utils.combine(
configuration.executeListenerProviders(),
new DefaultExecuteListenerProvider(collector)));
for (int i = 0; i < records.length; i++) {
Configuration previous = ((AttachableInternal) records[i]).configuration();
try {
records[i].attach(local);
executeAction(i);
} catch (QueryCollectorSignal e) {
Query query = e.getQuery();
if (query.isExecutable()) {
queries.add(query);
}
} finally {
records[i].attach(previous);
}
}
// Resulting statements can be batch executed in their requested order
int[] result = create.batch(queries).execute();
updateChangedFlag();
return result;
}
private final QueryPartInternal delegate(Configuration configuration) {
// These casts are safe for RowImpl
RowN r = (RowN) row;
RowN min = (RowN) minValue;
RowN max = (RowN) maxValue;
// These dialects don't support the SYMMETRIC keyword at all
if (symmetric
&& asList(ASE, CUBRID, DB2, DERBY, FIREBIRD, H2, MYSQL, ORACLE, SQLITE, SQLSERVER, SYBASE)
.contains(configuration.getDialect())) {
if (not) {
return (QueryPartInternal) r.notBetween(min, max).and(r.notBetween(max, min));
} else {
return (QueryPartInternal) r.between(min, max).or(r.between(max, min));
}
}
// These dialects either don't support row value expressions, or they
// Can't handle row value expressions with the BETWEEN predicate
else if (row.size() > 1
&& asList(CUBRID, DERBY, FIREBIRD, MYSQL, ORACLE, SQLITE, SQLSERVER, SYBASE)
.contains(configuration.getDialect())) {
Condition result = r.ge(min).and(r.le(max));
if (not) {
result = result.not();
}
return (QueryPartInternal) result;
} else {
return new Native();
}
}
private final QueryPartInternal delegate(Configuration ctx) {
if (query != null) {
return (QueryPartInternal) query;
} else {
switch (ctx.dialect()) {
// [#869] Postgres supports this syntax natively
case POSTGRES:
{
return (QueryPartInternal) array;
}
// [#869] H2 and HSQLDB can simulate this syntax by unnesting
// the array in a subselect
case H2:
case HSQLDB:
// [#1048] All other dialects simulate unnesting of arrays using
// UNION ALL-connected subselects
default:
{
return (QueryPartInternal) create(ctx).select().from(table(array));
}
}
}
}
AbstractContext(Configuration configuration, PreparedStatement stmt) {
super(configuration);
this.stmt = stmt;
VisitListenerProvider[] providers = configuration.visitListenerProviders();
boolean userInternalVisitListener = false;
this.visitListeners = new VisitListener[providers.length + (userInternalVisitListener ? 1 : 0)];
for (int i = 0; i < providers.length; i++) this.visitListeners[i] = providers[i].provide();
if (this.visitListeners.length > 0) {
this.visitContext = new DefaultVisitContext();
this.visitParts = new ArrayDeque<QueryPart>();
this.visitClauses = new ArrayDeque<Clause>();
} else {
this.visitContext = null;
this.visitParts = null;
this.visitClauses = null;
}
forcedParamType =
SettingsTools.getStatementType(settings()) == StatementType.STATIC_STATEMENT
? ParamType.INLINED
: null;
}
@Override
final Field<BigDecimal> getFunction0(Configuration configuration) {
switch (configuration.getDialect()) {
case ASE:
case CUBRID:
case DB2:
case DERBY:
case FIREBIRD:
case H2:
case HSQLDB:
case INGRES:
case MYSQL:
case ORACLE:
case POSTGRES:
case SQLSERVER:
case SYBASE:
return Factory.exp(one());
case SQLITE:
return inline(Math.E, BigDecimal.class);
// The Euler number doesn't seem to exist in any dialect...
default:
return function("e", getDataType());
}
}
@SuppressFBWarnings("SQL_NONCONSTANT_STRING_PASSED_TO_EXECUTE")
public static void execute(
Configuration jooqConf,
IndexStorage.CollectionSchema colSchema,
@Nonnull DatabaseInterface databaseInterface) {
ConnectionProvider provider = jooqConf.connectionProvider();
Connection connection = provider.acquire();
Statement st = null;
try {
st = connection.createStatement();
st.executeUpdate(databaseInterface.dropSchemaStatement(colSchema.getName()));
DSLContext dsl = DSL.using(jooqConf);
int deleted =
dsl.deleteFrom(CollectionsTable.COLLECTIONS)
.where(CollectionsTable.COLLECTIONS.NAME.eq(colSchema.getCollection()))
.execute();
assert deleted == 1;
} catch (SQLException ex) {
throw new ToroImplementationException(ex);
} finally {
AutoCloser.close(st);
}
}
@Override
protected void configure() {
bindFactory(new DSLContextFactory(configuration)).to(DSLContext.class).in(RequestScoped.class);
// Configuration and ConnectionProvider are single instance, used everywhere
bind(configuration).to(Configuration.class);
bind(configuration.connectionProvider()).to(ConnectionProvider.class);
}
@Override
final Field<T> getFunction0(Configuration configuration) {
SQLDialect family = configuration.family();
switch (family) {
case POSTGRES:
{
String field = method + "('" + getQualifiedName(configuration) + "')";
return field(field, getDataType());
}
case H2:
{
String field = method + "(" + getQualifiedName(configuration, true) + ")";
return field(field, getDataType());
}
case FIREBIRD:
case DERBY:
case HSQLDB:
{
if ("nextval".equals(method)) {
String field = "next value for " + getQualifiedName(configuration);
return field(field, getDataType());
} else if (family == FIREBIRD) {
return field("gen_id(" + getQualifiedName(configuration) + ", 0)", getDataType());
} else {
throw new SQLDialectNotSupportedException(
"The sequence's current value functionality is not supported for the "
+ family
+ " dialect.");
}
}
case CUBRID:
{
String field = getQualifiedName(configuration) + ".";
if ("nextval".equals(method)) {
field += "next_value";
} else {
field += "current_value";
}
return field(field, getDataType());
}
// Default is needed for hashCode() and toString()
default:
{
String field = getQualifiedName(configuration) + "." + method;
return field(field, getDataType());
}
}
}
@Override
public final int[] execute() {
// [#1180] Run batch queries with BatchMultiple, if no bind variables
// should be used...
if (executeStaticStatements(configuration.settings())) {
return executeStatic();
} else {
return executePrepared();
}
}
@Override
final Field<Integer> getFunction0(Configuration configuration) {
switch (configuration.family()) {
case SQLITE:
switch (datePart) {
case YEAR:
return field("{strftime}('%Y', {0})", SQLDataType.INTEGER, field);
case MONTH:
return field("{strftime}('%m', {0})", SQLDataType.INTEGER, field);
case DAY:
return field("{strftime}('%d', {0})", SQLDataType.INTEGER, field);
case HOUR:
return field("{strftime}('%H', {0})", SQLDataType.INTEGER, field);
case MINUTE:
return field("{strftime}('%M', {0})", SQLDataType.INTEGER, field);
case SECOND:
return field("{strftime}('%S', {0})", SQLDataType.INTEGER, field);
default:
throw new SQLDialectNotSupportedException("DatePart not supported: " + datePart);
}
case DERBY:
switch (datePart) {
case YEAR:
return function("year", SQLDataType.INTEGER, field);
case MONTH:
return function("month", SQLDataType.INTEGER, field);
case DAY:
return function("day", SQLDataType.INTEGER, field);
case HOUR:
return function("hour", SQLDataType.INTEGER, field);
case MINUTE:
return function("minute", SQLDataType.INTEGER, field);
case SECOND:
return function("second", SQLDataType.INTEGER, field);
default:
throw new SQLDialectNotSupportedException("DatePart not supported: " + datePart);
}
case MARIADB:
case MYSQL:
case POSTGRES:
case HSQLDB:
case H2:
// A default implementation is necessary for hashCode() and toString()
default:
return field("{extract}({" + datePart.toSQL() + " from} {0})", SQLDataType.INTEGER, field);
}
}
private final Table<Record> table(Configuration configuration) {
switch (configuration.getDialect()) {
case ORACLE:
{
if (array.getDataType().getType().isArray()) {
return simulate().as(alias);
} else {
return new OracleArrayTable().as(alias);
}
}
case H2:
{
return new H2ArrayTable().as(alias);
}
// [#756] These dialects need special care when aliasing unnested
// arrays
case HSQLDB:
case POSTGRES:
{
return new PostgresHSQLDBTable().as(alias);
}
// Other dialects can simulate unnested arrays using UNION ALL
default:
{
if (array.getDataType().getType().isArray() && array instanceof Param) {
return simulate();
} else {
throw new SQLDialectNotSupportedException(
"ARRAY TABLE is not supported for " + configuration.getDialect());
}
}
}
}
private final QueryPart delegate(Configuration configuration) {
switch (configuration.family()) {
case CUBRID:
// There is a bug in CUBRID preventing reuse of "level" in the
// predicate http://jira.cubrid.org/browse/ENGINE-119
Field<Integer> level = from.add(level()).sub(one());
return table(
"({select} {0} {as} {1} {from} {2} {connect by} {level} <= {3})",
level, name("generate_series"), new Dual(), to.add(one()).sub(from));
case POSTGRES:
default:
return table("{generate_series}({0}, {1})", from, to);
}
}
@Override
final Field<BigDecimal> getFunction0(Configuration configuration) {
switch (configuration.dialect().family()) {
case ASE:
case CUBRID:
case HSQLDB:
case INGRES:
case MARIADB:
case MYSQL:
case POSTGRES:
case SQLSERVER:
case SYBASE:
return DSL.exp(argument.mul(two())).sub(one()).div(DSL.exp(argument.mul(two())).add(one()));
default:
return function("tanh", SQLDataType.NUMERIC, argument);
}
}
AbstractContext(Configuration configuration, PreparedStatement stmt) {
super(configuration);
this.stmt = stmt;
this.visitClauses = new ArrayDeque<Clause>();
VisitListenerProvider[] providers = configuration.visitListenerProviders();
this.visitListeners = new VisitListener[providers.length + 1];
this.visitContext = new DefaultVisitContext();
this.visitParts = new ArrayDeque<QueryPart>();
for (int i = 0; i < providers.length; i++) {
this.visitListeners[i] = providers[i].provide();
}
this.visitListeners[providers.length] = new InternalVisitListener();
}
@SuppressWarnings("unchecked")
@Override
final Field<T> getFunction0(Configuration configuration) {
// In any dialect, a single argument is always the greatest
if (getArguments().length == 1) {
return (Field<T>) getArguments()[0];
}
switch (configuration.dialect()) {
// This implementation has O(2^n) complexity. Better implementations
// are very welcome
// [#1049] TODO Fix this!
case ASE:
case DERBY:
case SQLSERVER:
case SYBASE:
{
Field<T> first = (Field<T>) getArguments()[0];
Field<T> other = (Field<T>) getArguments()[1];
if (getArguments().length > 2) {
Field<?>[] remaining = new Field[getArguments().length - 2];
System.arraycopy(getArguments(), 2, remaining, 0, remaining.length);
return DSL.decode()
.when(first.greaterThan(other), DSL.greatest(first, remaining))
.otherwise(DSL.greatest(other, remaining));
} else {
return DSL.decode().when(first.greaterThan(other), first).otherwise(other);
}
}
case FIREBIRD:
return function("maxvalue", getDataType(), getArguments());
case SQLITE:
return function("max", getDataType(), getArguments());
default:
return function("greatest", getDataType(), getArguments());
}
}
private final void init() {
int columnCount = 0;
try {
columnCount = meta.getColumnCount();
}
// This happens in Oracle for empty cursors returned from stored
// procedures / functions
catch (SQLException e) {
log.warn("Cannot fetch column count for cursor : " + e.getMessage());
fields.add(field("dummy"));
}
try {
for (int i = 1; i <= columnCount; i++) {
String name = meta.getColumnLabel(i);
int precision = meta.getPrecision(i);
int scale = meta.getScale(i);
DataType<?> dataType = SQLDataType.OTHER;
String type = meta.getColumnTypeName(i);
try {
dataType =
FieldTypeHelper.getDialectDataType(
configuration.getDialect(), type, precision, scale);
}
// [#650, #667] TODO This should not happen. All types
// should be known at this point
catch (SQLDialectNotSupportedException ignore) {
log.warn("Not supported by dialect", ignore.getMessage());
}
fields.add(field(name, dataType));
}
} catch (SQLException e) {
throw Util.translate(null, e);
}
meta = null;
}
@Override
final Field<T> getFunction0(Configuration configuration) {
switch (configuration.family()) {
case H2:
case HSQLDB:
return field("{nvl}({0}, {1})", getDataType(), arg1, arg2);
case DERBY:
case POSTGRES:
return field("{coalesce}({0}, {1})", getDataType(), arg1, arg2);
case MARIADB:
case MYSQL:
case SQLITE:
return field("{ifnull}({0}, {1})", getDataType(), arg1, arg2);
default:
return DSL.when(arg1.isNotNull(), arg1).otherwise(arg2);
}
}
private Table<?> pivot(Configuration configuration) {
switch (configuration.dialect()) {
/* [pro] xx
xx xxxxxx xxx xxxxxx xxxxxxx xxx xxx xxxxx xxxxxx
xxxx xxxxxxx
xxxx xxxxxxxxxx
xxxx xxxxxxxxxx x
xxxxxx xxx xxxxxxxxxxxxxxxxxxx
x
xx [/pro] */
// Some other dialects can simulate it. This implementation is
// EXPERIMENTAL and not officially supported
default:
{
return new DefaultPivotTable();
}
}
}
@Override
final Field<String> getFunction0(Configuration configuration) {
Field<?>[] args = getArguments();
// [#861] Most dialects don't ship with a two-argument replace function:
switch (configuration.dialect().family()) {
case ASE:
{
if (args.length == 2) {
return function("str_replace", VARCHAR, args[0], args[1], val(null));
} else {
return function("str_replace", VARCHAR, args);
}
}
case DB2:
case FIREBIRD:
case HSQLDB:
case INGRES:
case MARIADB:
case MYSQL:
case POSTGRES:
case SQLITE:
case SQLSERVER:
case SYBASE:
{
if (args.length == 2) {
return function("replace", VARCHAR, args[0], args[1], val(""));
} else {
return function("replace", VARCHAR, args);
}
}
default:
{
return function("replace", VARCHAR, args);
}
}
}
@SuppressWarnings("unchecked")
@Override
final Field<T> getFunction0(Configuration configuration) {
// In any dialect, a single argument is always the least
if (getArguments().length == 1) {
return (Field<T>) getArguments()[0];
}
switch (configuration.family()) {
// This implementation has O(2^n) complexity. Better implementations
// are very welcome
case DERBY:
{
Field<T> first = (Field<T>) getArguments()[0];
Field<T> other = (Field<T>) getArguments()[1];
if (getArguments().length > 2) {
Field<?>[] remaining = new Field<?>[getArguments().length - 2];
System.arraycopy(getArguments(), 2, remaining, 0, remaining.length);
return DSL.when(first.lessThan(other), DSL.least(first, remaining))
.otherwise(DSL.least(other, remaining));
} else {
return DSL.when(first.lessThan(other), first).otherwise(other);
}
}
case FIREBIRD:
return function("minvalue", getDataType(), getArguments());
case SQLITE:
return function("min", getDataType(), getArguments());
default:
return function("least", getDataType(), getArguments());
}
}
@Override
final Field<String> getFunction0(Configuration configuration) {
switch (configuration.family()) {
// This beautiful expression was contributed by "Ludo", here:
// http://stackoverflow.com/questions/6576343/how-to-simulate-lpad-rpad-with-sqlite
case SQLITE:
{
return DSL.field(
"{0} || substr("
+ "replace("
+ "replace("
+ "substr("
+ "quote("
+ "zeroblob((({1} - length({0}) - 1 + length({2})) / length({2}) + 1) / 2)"
+ "), 3"
+ "), '\''', ''"
+ "), '0', {2}"
+ "), 1, ({1} - length({0}))"
+ ")",
String.class, field, length, character);
}
// According to the Firebird documentation, LPAD outcomes should be
// cast to truncate large results...
case FIREBIRD:
{
return field(
"cast(rpad({0}, {1}, {2}) as varchar(4000))",
SQLDataType.VARCHAR, field, length, character);
}
default:
{
return function("rpad", SQLDataType.VARCHAR, field, length, character);
}
}
}
@SuppressWarnings("unchecked")
@Override
final Field<T> getFunction0(Configuration configuration) {
SQLDialect dialect = configuration.getDialect();
// ---------------------------------------------------------------------
// XXX: Bitwise operators
// ---------------------------------------------------------------------
// DB2, H2 and HSQLDB know functions, instead of operators
if (BIT_AND == operator && asList(DB2, H2, HSQLDB, ORACLE).contains(dialect)) {
return function("bitand", getDataType(), getArguments());
} else if (BIT_AND == operator && FIREBIRD == dialect) {
return function("bin_and", getDataType(), getArguments());
} else if (BIT_XOR == operator && asList(DB2, H2, HSQLDB).contains(dialect)) {
return function("bitxor", getDataType(), getArguments());
} else if (BIT_XOR == operator && FIREBIRD == dialect) {
return function("bin_xor", getDataType(), getArguments());
} else if (BIT_OR == operator && asList(DB2, H2, HSQLDB).contains(dialect)) {
return function("bitor", getDataType(), getArguments());
} else if (BIT_OR == operator && FIREBIRD == dialect) {
return function("bin_or", getDataType(), getArguments());
}
// Oracle has to simulate or/xor
else if (BIT_OR == operator && ORACLE == dialect) {
return lhs.sub(bitAnd(lhsAsNumber(), rhsAsNumber())).add(rhsAsNumber());
}
// ~(a & b) & (a | b)
else if (BIT_XOR == operator && asList(ORACLE, SQLITE).contains(dialect)) {
return (Field<T>)
bitAnd(bitNot(bitAnd(lhsAsNumber(), rhsAsNumber())), bitOr(lhsAsNumber(), rhsAsNumber()));
}
// Many dialects don't support shifts. Use multiplication/division instead
else if (SHL == operator
&& asList(ASE, DB2, H2, HSQLDB, INGRES, ORACLE, SQLSERVER, SYBASE).contains(dialect)) {
return lhs.mul(Factory.power(two(), rhsAsNumber()));
} else if (SHR == operator
&& asList(ASE, DB2, H2, HSQLDB, INGRES, ORACLE, SQLSERVER, SYBASE).contains(dialect)) {
return lhs.div(Factory.power(two(), rhsAsNumber()));
}
// Some dialects support shifts as functions
else if (SHL == operator && FIREBIRD == dialect) {
return function("bin_shl", getDataType(), getArguments());
} else if (SHR == operator && FIREBIRD == dialect) {
return function("bin_shr", getDataType(), getArguments());
}
// These operators are not supported in any dialect
else if (BIT_NAND == operator) {
return (Field<T>) bitNot(bitAnd(lhsAsNumber(), rhsAsNumber()));
} else if (BIT_NOR == operator) {
return (Field<T>) bitNot(bitOr(lhsAsNumber(), rhsAsNumber()));
} else if (BIT_XNOR == operator) {
return (Field<T>) bitNot(bitXor(lhsAsNumber(), rhsAsNumber()));
}
// ---------------------------------------------------------------------
// XXX: Date time arithmetic operators
// ---------------------------------------------------------------------
// [#585] Date time arithmetic for numeric or interval RHS
else if (asList(ADD, SUBTRACT).contains(operator)
&& lhs.getDataType().isDateTime()
&& (rhs.get(0).getDataType().isNumeric() || rhs.get(0).getDataType().isInterval())) {
return new DateExpression();
}
// ---------------------------------------------------------------------
// XXX: Other operators
// ---------------------------------------------------------------------
// Use the default operator expression for all other cases
else {
return new DefaultExpression();
}
}
@Override
public Object data(Object key, Object value) {
return delegate.data(key, value);
}
@Override
public ConnectionProvider connectionProvider() {
return new MockConnectionProvider(delegate.connectionProvider(), provider);
}
@Override
public ExecutorProvider executorProvider() {
return delegate.executorProvider();
}
@Override
public TransactionProvider transactionProvider() {
return delegate.transactionProvider();
}
@Override
public RecordMapperProvider recordMapperProvider() {
return delegate.recordMapperProvider();
}
@Override
public RecordListenerProvider[] recordListenerProviders() {
return delegate.recordListenerProviders();
}
/** Return the expression to be rendered when the RHS is an interval type */
private final Field<T> getIntervalExpression(Configuration configuration) {
SQLDialect dialect = configuration.getDialect();
int sign = (operator == ADD) ? 1 : -1;
switch (dialect) {
case ASE:
case SYBASE:
case SQLSERVER:
{
if (rhs.get(0).getType() == YearToMonth.class) {
return field(
"{dateadd}(mm, {0}, {1})", getDataType(), val(sign * rhsAsYTM().intValue()), lhs);
} else {
// SQL Server needs this cast.
Field<Timestamp> lhsAsTS = lhs.cast(Timestamp.class);
DayToSecond interval = rhsAsDTS();
// Be careful with 32-bit INT arithmetic. Sybase ASE
// may fatally overflow when using micro-second precision
if (interval.getNano() != 0) {
return field(
"{dateadd}(ss, {0}, {dateadd}(us, {1}, {2}))",
getDataType(),
val(sign * (long) interval.getTotalSeconds()),
val(sign * interval.getMicro()),
lhsAsTS);
} else {
return field(
"{dateadd}(ss, {0}, {1})",
getDataType(), val(sign * (long) interval.getTotalSeconds()), lhsAsTS);
}
}
}
case CUBRID:
case MYSQL:
{
Interval interval = rhsAsInterval();
if (operator == SUBTRACT) {
interval = interval.neg();
}
if (rhs.get(0).getType() == YearToMonth.class) {
return field(
"{date_add}({0}, {interval} {1} {year_month})",
getDataType(), lhs, val(interval, String.class));
} else {
if (dialect == MYSQL) {
return field(
"{date_add}({0}, {interval} {1} {day_microsecond})",
getDataType(), lhs, val(interval, String.class));
} else {
return field(
"{date_add}({0}, {interval} {1} {day_millisecond})",
getDataType(), lhs, val(interval, String.class));
}
}
}
case DB2:
{
if (rhs.get(0).getType() == YearToMonth.class) {
if (operator == ADD) {
return lhs.add(field("{0} month", val(rhsAsYTM().intValue())));
} else {
return lhs.sub(field("{0} month", val(rhsAsYTM().intValue())));
}
} else {
// DB2 needs this cast if lhs is of type DATE.
DataType<T> type = lhs.getDataType();
if (operator == ADD) {
return lhs.cast(Timestamp.class)
.add(field("{0} microseconds", val(rhsAsDTS().getTotalMicro())))
.cast(type);
} else {
return lhs.cast(Timestamp.class)
.sub(field("{0} microseconds", val(rhsAsDTS().getTotalMicro())))
.cast(type);
}
}
}
case DERBY:
case HSQLDB:
{
if (rhs.get(0).getType() == YearToMonth.class) {
return field(
"{fn {timestampadd}({sql_tsi_month}, {0}, {1}) }",
getDataType(), val(sign * rhsAsYTM().intValue()), lhs);
} else {
return field(
"{fn {timestampadd}({sql_tsi_second}, {0}, {1}) }",
getDataType(), val(sign * (long) rhsAsDTS().getTotalSeconds()), lhs);
}
}
case FIREBIRD:
{
if (rhs.get(0).getType() == YearToMonth.class) {
return field(
"{dateadd}({month}, {0}, {1})",
getDataType(), val(sign * rhsAsYTM().intValue()), lhs);
} else {
return field(
"{dateadd}({millisecond}, {0}, {1})",
getDataType(), val(sign * (long) rhsAsDTS().getTotalMilli()), lhs);
}
}
case H2:
{
if (rhs.get(0).getType() == YearToMonth.class) {
return field(
"{dateadd}('month', {0}, {1})",
getDataType(), val(sign * rhsAsYTM().intValue()), lhs);
} else {
return field(
"{dateadd}('ms', {0}, {1})",
getDataType(), val(sign * (long) rhsAsDTS().getTotalMilli()), lhs);
}
}
case INGRES:
{
throw new SQLDialectNotSupportedException(
"Date time arithmetic not supported in Ingres. Contributions welcome!");
}
case SQLITE:
{
String prefix = (sign > 0) ? "+" : "-";
if (rhs.get(0).getType() == YearToMonth.class) {
return field(
"{datetime}({0}, '" + prefix + rhsAsYTM().intValue() + " months')",
getDataType(),
lhs);
} else {
return field(
"{datetime}({0}, '" + prefix + rhsAsDTS().getTotalSeconds() + " seconds')",
getDataType(),
lhs);
}
}
case ORACLE:
case POSTGRES:
default:
return new DefaultExpression();
}
}
/** Return the expression to be rendered when the RHS is a number type */
private final Field<T> getNumberExpression(Configuration configuration) {
switch (configuration.getDialect()) {
case ASE:
case FIREBIRD:
case SQLSERVER:
case SYBASE:
{
if (operator == ADD) {
return field("{dateadd}(day, {0}, {1})", getDataType(), rhsAsNumber(), lhs);
} else {
return field("{dateadd}(day, {0}, {1})", getDataType(), rhsAsNumber().neg(), lhs);
}
}
case DB2:
case HSQLDB:
{
if (operator == ADD) {
return lhs.add(field("{0} day", rhsAsNumber()));
} else {
return lhs.sub(field("{0} day", rhsAsNumber()));
}
}
case DERBY:
{
if (operator == ADD) {
return field(
"{fn {timestampadd}({sql_tsi_day}, {0}, {1}) }",
getDataType(), rhsAsNumber(), lhs);
} else {
return field(
"{fn {timestampadd}({sql_tsi_day}, {0}, {1}) }",
getDataType(), rhsAsNumber().neg(), lhs);
}
}
case CUBRID:
case MYSQL:
{
if (operator == ADD) {
return field(
"{date_add}({0}, {interval} {1} {day})", getDataType(), lhs, rhsAsNumber());
} else {
return field(
"{date_add}({0}, {interval} {1} {day})", getDataType(), lhs, rhsAsNumber().neg());
}
}
// Ingres is not working yet
case INGRES:
{
if (operator == ADD) {
return lhs.add(field("{date}({0} || ' days')", Object.class, rhsAsNumber()));
} else {
return lhs.sub(field("{date}({0} || ' days')", Object.class, rhsAsNumber()));
}
}
case POSTGRES:
{
// This seems to be the most reliable way to avoid issues
// with incompatible data types and timezones
// ? + CAST (? || ' days' as interval)
if (operator == ADD) {
return lhs.add(rhsAsNumber().concat(" day").cast(DayToSecond.class));
} else {
return lhs.sub(rhsAsNumber().concat(" day").cast(DayToSecond.class));
}
}
case SQLITE:
if (operator == ADD) {
return field("{datetime}({0}, '+" + rhsAsNumber() + " day')", getDataType(), lhs);
} else {
return field("{datetime}({0}, '-" + rhsAsNumber() + " day')", getDataType(), lhs);
}
// These dialects can add / subtract days using +/- operators
case H2:
case ORACLE:
default:
return new DefaultExpression();
}
}
