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

Class BindMarkerNode

java.lang.Object

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

All Implemented Interfaces:

ExpNode

Direct Known Subclasses:

BigDecimalBindMarkerNode, DoubleBindMarkerNode, InstantBindMarkerNode, IntegerBindMarkerNode, LongBindMarkerNode, StringBindMarkerNode

public abstract class BindMarkerNode
extends Object
implements ExpNode

Represents a bind variable marker (?) in a SQL expression

Constructor Summary

Constructors

Constructor	Description
BindMarkerNode()

Method Summary

Modifier and Type	Method	Description
abstract boolean	checkTypeAndValue(Object expectedValue)	Check that the value represented by this bind marker equals the type and value of the given expectedValue.
boolean	isOperand()	Is this expression node an operand
void	popOperands(Stack<ExpNode> stack)	Read the operands from the stack
int	precedence()	Precedence of this expression node.
String	toString()
abstract String	toValueString(String defaultValue)	Return a string of the value being represented by this bind marker, or the defaultValue if the internal value is null.
abstract void	visit(BindMarkerNodeVisitor visitor)	Apply this node to the given visitor

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, isOperator, isRightParen, visit

Constructor Detail

BindMarkerNode

public BindMarkerNode()

Method Detail

precedence

public int precedence()

Description copied from interface: ExpNode

Precedence of this expression node. Used to parse the expression into the correct tree. We use 0 to represent the highest precedence

Specified by:

precedence in interface ExpNode

Returns:

popOperands

public void popOperands(Stack<ExpNode> stack)

Description copied from interface: ExpNode

Read the operands from the stack

Specified by:

popOperands in interface ExpNode

isOperand

public boolean isOperand()

Description copied from interface: ExpNode

Is this expression node an operand

Specified by:

isOperand in interface ExpNode

Returns:

visit

public abstract void visit(BindMarkerNodeVisitor visitor)

Apply this node to the given visitor

Parameters:

visitor -

toString

public String toString()

Overrides:

toString in class Object

checkTypeAndValue

public abstract boolean checkTypeAndValue(Object expectedValue)

Check that the value represented by this bind marker equals the type and value of the given expectedValue.

Parameters:

expectedValue -

Returns:

toValueString

public abstract String toValueString(String defaultValue)

Return a string of the value being represented by this bind marker, or the defaultValue if the internal value is null.

Returns: