Expr (52°North Svalbard OData 7.4.0 API)

All Known Subinterfaces:

ArithmeticExpr, BooleanExpr, DirectTextExpr, TemporalExpr, TextExpr

All Known Implementing Classes:

BinaryExpr, BooleanBinaryExpr, BooleanUnaryExpr, ComparisonExpr, GeoValueExpr, MemberExpr, MethodCallExpr, NumericValueExpr, SimpleArithmeticExpr, StringValueExpr, TimeValueExpr, UnaryExpr
```
public interface Expr
```
Interface for expressions.

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method and Description
`<T,X extends Throwable> T`	`accept(ExprVisitor<T,X> visitor)` Accepts `visitor` for this expression.
`default Optional<ArithmeticExpr>`	`asArithmetic()` Get this expression as a arithmetic expression
`default Optional<BinaryExpr<?>>`	`asBinary()` Get this expression as a binary expression
`default Optional<BooleanExpr>`	`asBoolean()` Get this expression as a boolean expression
`default Optional<BooleanBinaryExpr>`	`asBooleanBinary()` Get this expression as a boolean binary expression
`default Optional<BooleanUnaryExpr>`	`asBooleanUnary()` Get this expression as a boolean unary expression
`default Optional<ComparisonExpr>`	`asComparison()` Get this expression as a comparison expression
`default Optional<GeoValueExpr>`	`asGeometry()` Get this expression as a geometry expression
`default Optional<MemberExpr>`	`asMember()` Get this expression as a member expression
`default Optional<MethodCallExpr>`	`asMethodCall()` Get this expression as a method call expression
`default Optional<NumericValueExpr>`	`asNumericValue()` Get this expression as a value expression
`default Optional<TextExpr>`	`asTextValue()` Get this expression as a string expression
`default Optional<TemporalExpr>`	`asTime()` Get this expression as a time expression
`default Optional<UnaryExpr<?>>`	`asUnary()` Get this expression as a unary expression
`default boolean`	`isArithmetic()` Check if this expression is a arithmetic expresion.
`default boolean`	`isBinary()` Check if this expression is a binary expression.
`default boolean`	`isBoolean()` Check if this expression is a boolean expresion.
`default boolean`	`isBooleanBinary()` Check if this expression is a boolean binary expression.
`default boolean`	`isBooleanUnary()` Check if this expression is a boolean unary expression.
`default boolean`	`isComparison()` Check if this expression is a comparison expression.
`default boolean`	`isGeometry()` Check if this expression is a geometry expresion.
`default boolean`	`isMember()` Check if this expression is a member expression.
`default boolean`	`isMethodCall()` Check if this expression is a method call expression.
`default boolean`	`isNumericValue()` Check if this expression is a number expression.
`default boolean`	`isTextValue()` Check if this expression is a string expression.
`default boolean`	`isTime()` Check if this expression is a time expresion.
`default boolean`	`isUnary()` Check if this expression is a unary expression.

- 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

Interface Expr

Method Summary

Method Detail

isTextValue

asTextValue

isMember

asMember

isBinary

asBinary

isBooleanBinary

asBooleanBinary

isComparison

asComparison

isUnary

asUnary

isBooleanUnary

asBooleanUnary

isMethodCall

asMethodCall

isBoolean

asBoolean

isArithmetic

asArithmetic

isTime

asTime

isGeometry

asGeometry

isNumericValue

asNumericValue

accept