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Diffstat (limited to 'src/library/scala/dbc/statement/expression/UnaryOperator.scala')
-rw-r--r-- | src/library/scala/dbc/statement/expression/UnaryOperator.scala | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/library/scala/dbc/statement/expression/UnaryOperator.scala b/src/library/scala/dbc/statement/expression/UnaryOperator.scala new file mode 100644 index 0000000000..1e7ab028f7 --- /dev/null +++ b/src/library/scala/dbc/statement/expression/UnaryOperator.scala @@ -0,0 +1,28 @@ +/* __ *\ +** ________ ___ / / ___ Scala API ** +** / __/ __// _ | / / / _ | (c) 2003-2005, LAMP/EPFL ** +** __\ \/ /__/ __ |/ /__/ __ | ** +** /____/\___/_/ |_/____/_/ | | ** +** |/ ** +\* */ + +package scala.dbc.statement.expression; + +abstract class UnaryOperator extends Expression { + + /** The name of the operator */ + def operator: String; + + /** Whether the operator comes before the operand or not. */ + def operatorIsLeft: Boolean; + + /** The operand applied to the operator. */ + def operand: Expression; + + /** A SQL-99 compliant string representation of the relation sub- + * statement. This only has a meaning inside another statement. */ + def sqlInnerString: String = operatorIsLeft match { + case true => operator + " " + operand.sqlInnerString; + case false => operand.sqlInnerString + " " + operator; + } +} |