org.datanucleus.query.expression
Class PrimaryExpression

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

public class PrimaryExpression
extends Expression

Expression for a primary object. This may be a field, or an explicit variable/parameter. Implicit parameters are expressed by ParameterExpression since we know at compile time that they are parameters.


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
left, LOCALISER, lowestOperator, op, OP_ADD, OP_AND, OP_BETWEEN, 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_OR, OP_SUB, right, symbol
 
Constructor Summary
PrimaryExpression(SymbolTable symtbl, java.util.List tuples)
           
 
Method Summary
 Symbol bind()
           
 java.lang.Object evaluate(ExpressionEvaluator eval)
           
 java.lang.String getId()
           
 java.util.List getTuples()
           
 java.lang.String toString()
           
 
Methods inherited from class org.datanucleus.query.expression.Expression
getLeft, getOperator, getRight, getSymbol
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

PrimaryExpression

public PrimaryExpression(SymbolTable symtbl,
                         java.util.List tuples)
Method Detail

evaluate

public java.lang.Object evaluate(ExpressionEvaluator eval)
Specified by:
evaluate in class Expression

getId

public java.lang.String getId()

getTuples

public java.util.List getTuples()

bind

public Symbol bind()
Specified by:
bind in class Expression

toString

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


Copyright © 2009. All Rights Reserved.