Package org.eclipse.ditto.rql.model.predicates.ast

Class SingleComparisonNode

java.lang.Object

org.eclipse.ditto.rql.model.predicates.ast.SingleComparisonNode

All Implemented Interfaces:

Node

public final class SingleComparisonNode
extends Object

Implements a comparison node like EQ (equals). A comparison node has a name, a property to compare on and a single value to compare for.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	SingleComparisonNode.Type	Defines the possible types that a SingleComparisonNode can have.

Constructor Summary

Constructors

Constructor	Description
SingleComparisonNode(SingleComparisonNode.Type comparisonType, String comparisonProperty, Object comparisonValue)	Constructor.

Method Summary

Modifier and Type	Method	Description
void	accept(PredicateVisitor predicateVisitor)	PredicateVisitor Pattern.
boolean	equals(Object obj)
String	getComparisonProperty()	Retrieve the property to compare on.
SingleComparisonNode.Type	getComparisonType()	Retrieve the type of the comparison.
Object	getComparisonValue()	Retrieve the value to compare for.
int	hashCode()
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

SingleComparisonNode

public SingleComparisonNode(SingleComparisonNode.Type comparisonType,
 String comparisonProperty,
 @Nullable
 Object comparisonValue)

Constructor. Creates a new comparison node with the given type, property and value.

Parameters:

comparisonType - the type of the comparison.

comparisonProperty - the property to compare on.

comparisonValue - the value to compare for.

Method Details

accept

public void accept(PredicateVisitor predicateVisitor)

PredicateVisitor Pattern. Takes a visitor as parameter and calls the corresponding visit method with itself as parameter.

Specified by:

accept in interface Node

Parameters:

predicateVisitor - the visitor which should be called.

getComparisonType

public SingleComparisonNode.Type getComparisonType()

Retrieve the type of the comparison.

Returns:

the type of the comparison.

getComparisonProperty

public String getComparisonProperty()

Retrieve the property to compare on.

Returns:

the property to compare on.

getComparisonValue

@Nullable
public Object getComparisonValue()

Retrieve the value to compare for.

Returns:

the value to compare for.

toString

public String toString()

Overrides:

toString in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object