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();
}
}
@Override
public final void toSQL(RenderContext context) {
context
.keyword("update ")
.declareTables(true)
.sql(getInto())
.declareTables(false)
.formatSeparator()
.keyword("set ");
// A multi-row update was specified
if (multiRow != null) {
boolean qualify = context.qualify();
context.qualify(false).sql(multiRow).qualify(qualify).sql(" = ");
// Some dialects don't really support row value expressions on the
// right hand side of a SET clause
if (multiValue != null
&& !asList(INGRES, ORACLE).contains(context.configuration().dialect())) {
context.sql(multiValue);
}
// Subselects or subselect simulatinos of row value expressions
else {
Select<?> select = multiSelect;
if (multiValue != null) {
select = select(multiValue.fields());
}
context
.sql("(")
.formatIndentStart()
.formatNewLine()
.subquery(true)
.sql(select)
.subquery(false)
.formatIndentEnd()
.formatNewLine()
.sql(")");
}
}
// A regular (non-multi-row) update was specified
else {
context.formatIndentLockStart().sql(updateMap).formatIndentLockEnd();
}
if (!(getWhere() instanceof TrueCondition)) {
context.formatSeparator().keyword("where ").sql(getWhere());
}
toSQLReturning(context);
}