Package org.rumbledb.expressions.comparison

Class NodeComparisonExpression

java.lang.Object

org.rumbledb.expressions.Node

org.rumbledb.expressions.Expression

org.rumbledb.expressions.comparison.NodeComparisonExpression

public class NodeComparisonExpression
extends Expression

An expression that represents a node comparison. Node comparisons are used to compare two nodes, by their identity or by their document order.

See Also:

• XQuery 3.1, 3.7.3: Node Comparisons

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	NodeComparisonExpression.NodeComparisonOperator

Field Summary

Fields inherited from class org.rumbledb.expressions.Expression

expressionClassification, isSequential, staticContext, staticSequenceType

Fields inherited from class org.rumbledb.expressions.Node

highestExecutionMode

Constructor Summary

Constructors

Constructor	Description
NodeComparisonExpression(Expression leftExpression, Expression rightExpression, NodeComparisonExpression.NodeComparisonOperator operator, ExceptionMetadata metadata)

Method Summary

Modifier and Type	Method	Description
<T> T	accept(AbstractNodeVisitor<T> visitor, T argument)	Accept method for the visitor pattern.
List<Node>	getChildren()	Returns all children nodes as a list.
Expression	getLeftExpression()
NodeComparisonExpression.NodeComparisonOperator	getOperator()
Expression	getRightExpression()
void	serializeToJSONiq(StringBuffer sb, int indent)

Methods inherited from class org.rumbledb.expressions.Expression

alwaysReturnsAtMostOneItem, getExpressionClassification, getStaticContext, getStaticContextForRuntime, getStaticSequenceType, isSequential, isUnset, isUpdating, isUpdatingNonSequential, print, setExpressionClassification, setSequential, setStaticContext, setStaticSequenceType

Methods inherited from class org.rumbledb.expressions.Node

getDescendants, getDescendantsMatching, getHighestExecutionMode, getHighestExecutionMode, getMetadata, indentIt, isContextDependent, numberOfUnsetExecutionModes, setHighestExecutionMode, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

NodeComparisonExpression

public NodeComparisonExpression(Expression leftExpression,
 Expression rightExpression,
 NodeComparisonExpression.NodeComparisonOperator operator,
 ExceptionMetadata metadata)

Method Details

accept

public <T> T accept(AbstractNodeVisitor<T> visitor,
 T argument)

Description copied from class: Node

Accept method for the visitor pattern.

Specified by:

accept in class Node

Type Parameters:

T - the type of the objects returned by the visitor.

Parameters:

visitor - the visitor.

argument - the input from the visitor.

Returns:

the object returned by this visitor

getChildren

public List<Node> getChildren()

Description copied from class: Node

Returns all children nodes as a list. The list is new and can be modified at will by the caller.

Specified by:

getChildren in class Node

Returns:

the children nodes as a list.

getOperator

public NodeComparisonExpression.NodeComparisonOperator getOperator()

getLeftExpression

public Expression getLeftExpression()

getRightExpression

public Expression getRightExpression()

serializeToJSONiq

public void serializeToJSONiq(StringBuffer sb,
 int indent)

Specified by:

serializeToJSONiq in class Node