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MaxNode.javaAPI DocGlassfish v2 API3332Tue May 22 16:54:38 BST 2007oracle.toplink.essentials.internal.parsing

MaxNode

public class MaxNode extends AggregateNode
INTERNAL

Purpose: Model a MAX

Responsibilities:

  • Apply itself to a query correctly

Fields Summary
Constructors Summary
Methods Summary
protected oracle.toplink.essentials.expressions.ExpressionaddAggregateExression(oracle.toplink.essentials.expressions.Expression expr)
INTERNAL

        return expr.maximum();
public voidapplyToQuery(oracle.toplink.essentials.queryframework.ObjectLevelReadQuery theQuery, oracle.toplink.essentials.internal.parsing.GenerationContext context)
INTERNAL Apply this node to the passed query

        if (theQuery.isReportQuery()) {
            ReportQuery reportQuery = (ReportQuery)theQuery;
            reportQuery.addAttribute(resolveAttribute(), 
                                     generateExpression(context));
        }
public java.lang.StringgetAsString()
INTERNAL Get the string representation of this node.

        return "MAX(" + left.getAsString() + ")";
public voidvalidate(oracle.toplink.essentials.internal.parsing.ParseTreeContext context)
INTERNAL Validate node and calculate its type.

        if (left != null) {
            left.validate(context);
            setType(left.getType());
        }