org.n52.svalbard.odata.expr

Interface BooleanExpr

All Superinterfaces:

Expr

All Known Implementing Classes:

BooleanBinaryExpr, BooleanUnaryExpr, ComparisonExpr, MethodCallExpr

public interface BooleanExpr
extends Expr

Interface to denote that this expression possibly evaluates to a boolean value.

Method Summary

Modifier and Type	Method and Description
default java.util.Optional<BooleanExpr>	asBoolean() Get this expression as a boolean expression
default boolean	isBoolean() Check if this expression is a boolean expresion.

Methods inherited from interface org.n52.svalbard.odata.expr.Expr

accept, asBinary, asBooleanBinary, asBooleanUnary, asComparison, asMember, asMethodCall, asUnary, asValue, isBinary, isBooleanBinary, isBooleanUnary, isComparison, isMember, isMethodCall, isUnary, isValue

Method Detail

isBoolean

default boolean isBoolean()

Description copied from interface: Expr

Check if this expression is a boolean expresion.

Specified by:

isBoolean in interface Expr

Returns:

if it is a boolean expression

asBoolean

default java.util.Optional<BooleanExpr> asBoolean()

Description copied from interface: Expr

Get this expression as a boolean expression

Specified by:

asBoolean in interface Expr

Returns:

the expression or Optional.empty() if the type does not match