Package org.n52.svalbard.odata.core.expr

Interface Expr

    • Method Detail

      • isTextValue

        default boolean isTextValue()
        Check if this expression is a string expression.
        Returns:
        if it is a value

      • asTextValue

        default Optional<TextExpr> asTextValue()
        Get this expression as a string expression
        Returns:
        the expression or Optional.empty() if the type does not match

      • isMember

        default boolean isMember()
        Check if this expression is a member expression.
        Returns:
        if it is a member

      • asMember

        default Optional<MemberExpr> asMember()
        Get this expression as a member expression
        Returns:
        the expression or Optional.empty() if the type does not match

      • isBinary

        default boolean isBinary()
        Check if this expression is a binary expression.
        Returns:
        if it is a binary expression

      • asBinary

        default Optional<BinaryExpr<?>> asBinary()
        Get this expression as a binary expression
        Returns:
        the expression or Optional.empty() if the type does not match

      • isBooleanBinary

        default boolean isBooleanBinary()
        Check if this expression is a boolean binary expression.
        Returns:
        if it is a boolean binary expression

      • asBooleanBinary

        default Optional<BooleanBinaryExpr> asBooleanBinary()
        Get this expression as a boolean binary expression
        Returns:
        the expression or Optional.empty() if the type does not match

      • isComparison

        default boolean isComparison()
        Check if this expression is a comparison expression.
        Returns:
        if it is a comparison expression

      • asComparison

        default Optional<ComparisonExpr> asComparison()
        Get this expression as a comparison expression
        Returns:
        the expression or Optional.empty() if the type does not match

      • isUnary

        default boolean isUnary()
        Check if this expression is a unary expression.
        Returns:
        if it is a unary expression

      • asUnary

        default Optional<UnaryExpr<?>> asUnary()
        Get this expression as a unary expression
        Returns:
        the expression or Optional.empty() if the type does not match

      • isBooleanUnary

        default boolean isBooleanUnary()
        Check if this expression is a boolean unary expression.
        Returns:
        if it is a unary boolean expression

      • asBooleanUnary

        default Optional<BooleanUnaryExpr> asBooleanUnary()
        Get this expression as a boolean unary expression
        Returns:
        the expression or Optional.empty() if the type does not match

      • isMethodCall

        default boolean isMethodCall()
        Check if this expression is a method call expression.
        Returns:
        if it is a method call expression

      • asMethodCall

        default Optional<MethodCallExpr> asMethodCall()
        Get this expression as a method call expression
        Returns:
        the expression or Optional.empty() if the type does not match

      • isBoolean

        default boolean isBoolean()
        Check if this expression is a boolean expresion.
        Returns:
        if it is a boolean expression

      • asBoolean

        default Optional<BooleanExpr> asBoolean()
        Get this expression as a boolean expression
        Returns:
        the expression or Optional.empty() if the type does not match

      • isArithmetic

        default boolean isArithmetic()
        Check if this expression is a arithmetic expresion.
        Returns:
        if it is a arithmetic expression

      • asArithmetic

        default Optional<ArithmeticExpr> asArithmetic()
        Get this expression as a arithmetic expression
        Returns:
        the expression or Optional.empty() if the type does not match

      • isTime

        default boolean isTime()
        Check if this expression is a time expresion.
        Returns:
        if it is a arithmetic expression

      • asTime

        default Optional<TemporalExpr> asTime()
        Get this expression as a time expression
        Returns:
        the expression or Optional.empty() if the type does not match

      • isGeometry

        default boolean isGeometry()
        Check if this expression is a geometry expresion.
        Returns:
        if it is a geometry expression

      • asGeometry

        default Optional<GeoValueExpr> asGeometry()
        Get this expression as a geometry expression
        Returns:
        the expression or Optional.empty() if the type does not match

      • isNumericValue

        default boolean isNumericValue()
        Check if this expression is a number expression.
        Returns:
        if it is a value

      • asNumericValue

        default Optional<NumericValueExpr> asNumericValue()
        Get this expression as a value expression
        Returns:
        the expression or Optional.empty() if the type does not match

      • accept

        <T,​X extends Throwable> T accept​(ExprVisitor<T,​X> visitor)
                                throws X extends Throwable
        Accepts visitor for this expression.
        Type Parameters:
        T - the visitor's return type
        X - the exception type the visitor may throw
        Parameters:
        visitor - the visitor
        Returns:
        the result of the visit
        Throws:
        X - if the visitor fails to visit this expression
        X extends Throwable