AbstractParser

java.lang.Object

org.datanucleus.store.query.compiler.AbstractParser

All Implemented Interfaces:: Parser

Direct Known Subclasses:: JDOQLParser, JPQLParser

public abstract class AbstractParser extends Object implements Parser

Abstract query parser. To be extended for the particular query language.

Field Summary

Fields

Modifier and Type

Field

Description

protected Lexer

lexer

protected Deque<Node>

stack

protected boolean

strict

Whether to impose strict syntax for the query language.
Constructor Summary

Constructors

Constructor

Description

AbstractParser()
Method Summary

Modifier and Type

Method

Description

protected static Node

getLastDescendantNodeForNode(Node node)

Convenience method to navigate down through descendants to find the last one.

void

setExplicitParameters(boolean flag)

void

setStrict(boolean flag)

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

Methods inherited from interface Parser
parse, parseFrom, parseOrder, parseParameters, parseResult, parseTuple, parseUpdate, parseVariable, parseVariables

Field Details
- strict
  
  protected boolean strict
  
  Whether to impose strict syntax for the query language.
- lexer
  
  protected Lexer lexer
- stack
  
  protected Deque<Node> stack
Constructor Details
- AbstractParser
  
  public AbstractParser()
Method Details
- setStrict
  
  public void setStrict(boolean flag)
  
  Specified by:
  
  setStrict in interface Parser
- setExplicitParameters
  
  public void setExplicitParameters(boolean flag)
  
  Specified by:
  
  setExplicitParameters in interface Parser
- getLastDescendantNodeForNode
  
  protected static Node getLastDescendantNodeForNode(Node node)
  
  Convenience method to navigate down through descendants to find the last one. Uses the first child node each time, so doesn't cope if there are multiple.
  
  Parameters:
  
  node - The node
  
  Returns:
  
  The last descendant