org.jpox.query.expression
Class BooleanExpression

java.lang.Object
  org.jpox.query.expression.Expression
      org.jpox.query.expression.BooleanExpression

public class BooleanExpression
extends Expression

Nested Class Summary

Nested classes/interfaces inherited from class org.jpox.query.expression.Expression

Expression.DyadicOperator, Expression.MonadicOperator, Expression.Operator

Field Summary

Fields inherited from class org.jpox.query.expression.Expression

left, LOCALISER, lowestOperator, op, OP_ADD, OP_AND, OP_BETWEEN, OP_COM, OP_CONCAT, 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

BooleanExpression(Expression.MonadicOperator op, Expression operand)
Perform a function op on operand

BooleanExpression(Expression operand1, Expression.DyadicOperator op, Expression operand2)
Performs a function on two arguments.

Method Summary

Symbol	bind()
java.lang.Object	evaluate(ExpressionEvaluator eval)

Methods inherited from class org.jpox.query.expression.Expression

getLeft, getOperator, getRight, getSymbol

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BooleanExpression

public BooleanExpression(Expression.MonadicOperator op,
                         Expression operand)

Perform a function op on operand

Parameters:

op - operator

operand - operand

BooleanExpression

public BooleanExpression(Expression operand1,
                         Expression.DyadicOperator op,
                         Expression operand2)

Performs a function on two arguments. op(operand1,operand2) operand1 op operand2

Parameters:

operand1 - the first expression

op - the operator between operands

operand2 - the second expression

Method Detail

evaluate

public java.lang.Object evaluate(ExpressionEvaluator eval)

Specified by:

evaluate in class Expression

bind

public Symbol bind()

Specified by:

bind in class Expression