Example usage for org.springframework.data.solr.core.query Node isRoot

Introduction

In this page you can find the example usage for org.springframework.data.solr.core.query Node isRoot.

Prototype

public boolean isRoot() 

Source Link

Usage

From source file:org.springframework.data.solr.core.QueryParserBase.java

public String createQueryStringFromNode(Node node, int position) {

    StringBuilder query = new StringBuilder();
    if (position > 0) {
        query.append(node.isOr() ? " OR " : " AND ");
    }//w w  w  .  ja v  a  2s  .c o m

    if (node.hasSiblings()) {
        if (node.isNegating()) {
            query.append("-");
        }
        if (!node.isRoot() || (node.isRoot() && node.isNegating())) {
            query.append('(');
        }

        int i = 0;
        for (Node nested : node.getSiblings()) {
            query.append(createQueryStringFromNode(nested, i++));
        }

        if (!node.isRoot() || (node.isRoot() && node.isNegating())) {
            query.append(')');
        }
    } else {
        query.append(createQueryFragmentForCriteria((Criteria) node));
    }
    return query.toString();
}

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