Package com.ibm.fhir.database.utils.query.node

Class UnaryExpNode

java.lang.Object

com.ibm.fhir.database.utils.query.node.OperatorNode

com.ibm.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 com.ibm.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 com.ibm.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