SymbolTable (Payara Project 6.2022.1.Alpha3 API)

java.lang.Object
- com.sun.jdo.spi.persistence.support.ejb.ejbqlc.SymbolTable

```
public class SymbolTable
extends Object
```
The symbol table handling declared identifies.

Author:

Michael Bouschen

Field Summary

Fields
Modifier and Type Field Description

protected Map symbols
The table of declared identifier (symbols).

Constructor Summary

Constructors
Constructor Description

SymbolTable()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Object`	`declare(String ident, Object decl)`	This method adds the specified identifier to this SymbolTable.
`Object`	`getDeclaration(String ident)`	Checks the symbol table for the actual declaration of the specified identifier.
`boolean`	`isDeclared(String ident)`	Checks whether the specified identifier is declared.

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

- Field Detail
  - symbols
```
protected Map symbols
```
    The table of declared identifier (symbols).
- Constructor Detail
  - SymbolTable
```
public SymbolTable()
```
- Method Detail
  - declare
```
public Object declare(String ident,
                      Object decl)
```
    This method adds the specified identifier to this SymbolTable. The specified decl object provides details anbout the declaration. If this SymbolTable already defines an identifier with the same name, the SymbolTable is not changed and the existing declaration is returned. Otherwise null is returned.
    
    Parameters:
    
    ident - identifier to be declared
    
    decl - new definition of identifier
    
    Returns:
    
    the old definition if the identifier was already declared; null otherwise
  - isDeclared
```
public boolean isDeclared(String ident)
```
    Checks whether the specified identifier is declared.
    
    Parameters:
    
    ident - the name of identifier to be tested
    
    Returns:
    
    true if the identifier is declared; false otherwise.
  - getDeclaration
```
public Object getDeclaration(String ident)
```
    Checks the symbol table for the actual declaration of the specified identifier. The method returns the declaration object if available or null for an undeclared identifier.
    
    Parameters:
    
    ident - the name of identifier
    
    Returns:
    
    the declaration object if ident is declared; null otherise.