Expression (blaze-expression-core-api 1.0.0-Alpha21 API)

All Known Subinterfaces:

ArithmeticExpression, Predicate

All Known Implementing Classes:

AbstractExpression, AbstractPredicate, ArithmeticFactor, BetweenPredicate, ChainingArithmeticExpression, CollectionLiteral, ComparisonPredicate, CompoundPredicate, EntityLiteral, EnumLiteral, ExpressionPredicate, FunctionInvocation, InPredicate, IsEmptyPredicate, IsNullPredicate, Literal, Path
```
public interface Expression
```
The base interface for an expression.

Since:

1.0.0

Author:

Christian Beikov

Nested Class Summary

Nested Classes
Modifier and Type	Interface	Description
`static interface`	`Expression.ResultVisitor<T>`	A visitor for an expression that produces a result as part of the visitation.
`static interface`	`Expression.Visitor`	A visitor for an expression.

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`<T> T`	`accept(Expression.ResultVisitor<T> visitor)`	Dynamic dispatch to one of the visit methods of the visitor, based on the runtime type.
`void`	`accept(Expression.Visitor visitor)`	Dynamic dispatch to one of the visit methods of the visitor, based on the runtime type.
`com.blazebit.domain.runtime.model.DomainType`	`getType()`	Returns the domain type of this expression.
`default Set<Path>`	`getUsedPaths()`	Returns the paths that are used in this expression.

- Method Detail
  - getType
```
com.blazebit.domain.runtime.model.DomainType getType()
```
    Returns the domain type of this expression.
    
    Returns:
    
    the domain type of this expression
  - accept
```
void accept(Expression.Visitor visitor)
```
    Dynamic dispatch to one of the visit methods of the visitor, based on the runtime type.
    
    Parameters:
    
    visitor - The visitor to call visit on
  - accept
```
<T> T accept(Expression.ResultVisitor<T> visitor)
```
    Dynamic dispatch to one of the visit methods of the visitor, based on the runtime type.
    
    Type Parameters:
    
    T - The result type
    
    Parameters:
    
    visitor - The visitor to call visit on
    
    Returns:
    
    the value as returned by the result visitor
  - getUsedPaths
```
default Set<Path> getUsedPaths()
```
    Returns the paths that are used in this expression.
    
    Returns:
    
    the paths that are used