Examples with HintNode org.apache.phoenix.parse.HintNode used on opensource projects

Example 6 with HintNode

use of org.apache.phoenix.parse.HintNode in project phoenix by apache.

the class QueryUtil method constructUpsertStatement.

/**
 * Generate an upsert statement based on a list of {@code ColumnInfo}s with parameter markers. The list of
 * {@code ColumnInfo}s must contain at least one element.
 *
 * @param tableName name of the table for which the upsert statement is to be created
 * @param columns list of columns to be included in the upsert statement
 * @param hint hint to be added to the UPSERT statement.
 * @return the created {@code UPSERT} statement
 */
public static String constructUpsertStatement(String tableName, List<String> columns, Hint hint) {
    if (columns.isEmpty()) {
        throw new IllegalArgumentException("At least one column must be provided for upserts");
    }
    String hintStr = "";
    if (hint != null) {
        final HintNode node = new HintNode(hint.name());
        hintStr = node.toString();
    }
    List<String> parameterList = Lists.newArrayList();
    for (int i = 0; i < columns.size(); i++) {
        parameterList.add("?");
    }
    return String.format("UPSERT %s INTO %s (%s) VALUES (%s)", hintStr, tableName, Joiner.on(", ").join(Iterables.transform(columns, new Function<String, String>() {

        @Nullable
        @Override
        public String apply(@Nullable String columnName) {
            return getEscapedFullColumnName(columnName);
        }
    })), Joiner.on(", ").join(parameterList));
}