org.datanucleus.query.expression
Class Literal

java.lang.Object
  extended by org.datanucleus.query.expression.Expression
      extended by org.datanucleus.query.expression.Literal

public class Literal
extends Expression

Literal of some type (String, Double, Long, BigDecimal, etc).


Nested Class Summary
 
Nested classes/interfaces inherited from class org.datanucleus.query.expression.Expression
Expression.DyadicOperator, Expression.MonadicOperator, Expression.Operator
 
Field Summary
 
Fields inherited from class org.datanucleus.query.expression.Expression
alias, left, LOCALISER, op, OP_ADD, OP_AND, OP_CAST, OP_COM, OP_CONCAT, OP_DISTINCT, OP_DIV, OP_EQ, OP_GT, OP_GTEQ, OP_IN, OP_IS, OP_ISNOT, OP_LIKE, OP_LT, OP_LTEQ, OP_MOD, OP_MUL, OP_NEG, OP_NOT, OP_NOTEQ, OP_NOTIN, OP_OR, OP_SUB, parent, right, symbol
 
Constructor Summary
Literal(java.lang.Object value)
           
 
Method Summary
 Symbol bind(SymbolTable symtbl)
          Method to bind the expression to the symbol table as appropriate.
 java.lang.Object getLiteral()
           
 void negate()
           
 java.lang.String toString()
           
 
Methods inherited from class org.datanucleus.query.expression.Expression
evaluate, getAlias, getLeft, getOperator, getParent, getRight, getSymbol, setAlias, setLeft, setRight
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

Literal

public Literal(java.lang.Object value)
Method Detail

getLiteral

public java.lang.Object getLiteral()

negate

public void negate()

bind

public Symbol bind(SymbolTable symtbl)
Method to bind the expression to the symbol table as appropriate.

Specified by:
bind in class Expression
Parameters:
symtbl - Symbol Table
Returns:
The symbol for this expression

toString

public java.lang.String toString()
Overrides:
toString in class java.lang.Object


Copyright © 2011. All Rights Reserved.