Android Open Source - NexusData Comparison Parselet

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License

The source code is released under:

Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCT...

Java Source Code

package com.github.dkharrat.nexusdata.predicate.parser;
/* w  ww . j  av a 2s .c o  m*/
import com.github.dkharrat.nexusdata.predicate.ComparisonPredicate;
import static com.github.dkharrat.nexusdata.predicate.ComparisonPredicate.Operator;
import com.github.dkharrat.nexusdata.predicate.Expression;

import static com.github.dkharrat.nexusdata.predicate.parser.PredicateParser.TokenType;

public class ComparisonParselet implements InfixParselet<TokenType,Expression<?>> {
    private final Operator operator;
    private final int precedence;

    ComparisonParselet(Operator operator, int precedence) {
        this.operator = operator;
        this.precedence = precedence;
    }

    public Expression<?> parse(Parser<TokenType,Expression<?>> parser, Expression<?> left, Token<TokenType> token) {

        Expression<?> right = parser.parse(getPrecedence() - 1);

        return new ComparisonPredicate(left, operator, right);
    }

    public int getPrecedence() {
        return precedence;
    }
}

Java Source Code List

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