LiteralExpNode (IBM FHIR Server)

java.lang.Object
- com.ibm.fhir.database.utils.query.node.LiteralExpNode

All Implemented Interfaces:

ExpNode

Direct Known Subclasses:

DoubleExpNode, LongExpNode, StringExpNode
```
public abstract class LiteralExpNode
extends Object
implements ExpNode
```
Base of literal values in the expression tree

Constructor Summary

Constructors
Constructor Description

LiteralExpNode()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`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.

Methods inherited from class java.lang.Object
clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.ibm.fhir.database.utils.query.node.ExpNode
isLeftParen, isOperator, isRightParen, visit

- Constructor Detail
  - LiteralExpNode
```
public LiteralExpNode()
```
- 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: