Package org.linuxforhealth.fhir.database.utils.query.node

Class UnaryExpNode

java.lang.Object

org.linuxforhealth.fhir.database.utils.query.node.OperatorNode

org.linuxforhealth.fhir.database.utils.query.node.UnaryExpNode

All Implemented Interfaces:

ExpNode

Direct Known Subclasses:

ExistsExpNode, IsNotNullExpNode, IsNullExpNode, NotExistsExpNode, NotExpNode, ParenExpNode

public abstract class UnaryExpNode
extends OperatorNode

A unary expression

Constructor Summary

Constructors

Modifier	Constructor	Description
	UnaryExpNode()	Default public constructor (postponed initialization of the expr value)
protected	UnaryExpNode(ExpNode expr)	Protected constructor for immediate initialization by a subclass

Method Summary

Modifier and Type	Method	Description
ExpNode	getExpr()
void	popOperands(java.util.Stack<ExpNode> stack)	Read the operands from the stack
void	setExpr(ExpNode expr)
java.lang.String	toString()

Methods inherited from class org.linuxforhealth.fhir.database.utils.query.node.OperatorNode

isOperator

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.linuxforhealth.fhir.database.utils.query.node.ExpNode

isLeftParen, isOperand, isRightParen, precedence, visit

Constructor Detail

UnaryExpNode

public UnaryExpNode()

Default public constructor (postponed initialization of the expr value)

UnaryExpNode

protected UnaryExpNode(ExpNode expr)

Protected constructor for immediate initialization by a subclass

Parameters:

expr -

Method Detail

getExpr

public ExpNode getExpr()

Returns:

the expr

setExpr

public void setExpr(ExpNode expr)

Parameters:

expr - the expr to set

popOperands

public void popOperands(java.util.Stack<ExpNode> stack)

Description copied from interface: ExpNode

Read the operands from the stack

toString

public java.lang.String toString()

Overrides:

toString in class OperatorNode