public abstract class ComparisonExpression extends BinaryExpression implements BooleanExpression
left, right
Constructor and Description |
---|
ComparisonExpression(Expression left,
Expression right) |
equals, getExpressionSymbol, getLeft, getRight, hashCode, setLeft, setRight, toString
public ComparisonExpression(Expression left, Expression right)
public static BooleanExpression createBetween(Expression value, Expression left, Expression right)
public static BooleanExpression createNotBetween(Expression value, Expression left, Expression right)
public static BooleanExpression createLike(Expression left, String right, String escape)
public static BooleanExpression createNotLike(Expression left, String right, String escape)
public static BooleanExpression createInFilter(Expression left, List elements)
public static BooleanExpression createNotInFilter(Expression left, List elements)
public static BooleanExpression createIsNull(Expression left)
public static BooleanExpression createIsNotNull(Expression left)
public static BooleanExpression createNotEqual(Expression left, Expression right)
public static BooleanExpression createEqual(Expression left, Expression right)
public static BooleanExpression createGreaterThan(Expression left, Expression right)
public static BooleanExpression createGreaterThanEqual(Expression left, Expression right)
public static BooleanExpression createLessThan(Expression left, Expression right)
public static BooleanExpression createLessThanEqual(Expression left, Expression right)
public static void checkLessThanOperand(Expression expr)
expr
- The expression to evaluate.public static void checkEqualOperand(Expression expr)
expr
- The expression to evaluate.public Object evaluate(Filterable message) throws FilterException
evaluate
in interface Expression
message
- The message that is being selected against.FilterException
- if an error occurs during evaluation.protected Boolean compare(Comparable lv, Comparable rv)
protected abstract boolean asBoolean(int answer)
public boolean matches(Filterable message) throws FilterException
matches
in interface BooleanExpression
FilterException
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