/** Create a filter that will match a given family, qualifier, and cells per qualifier. */
private RowFilter createColumnSpecFilter(SingleColumnValueFilter filter) throws IOException {
return RowFilter.newBuilder()
.setChain(
Chain.newBuilder()
.addFilters(
RowFilter.newBuilder()
.setFamilyNameRegexFilter(
Bytes.toString(quoteRegularExpression(filter.getFamily()))))
.addFilters(
RowFilter.newBuilder()
.setColumnQualifierRegexFilter(
ByteStringer.wrap(quoteRegularExpression(filter.getQualifier()))))
.addFilters(createVersionLimitFilter(filter)))
.build();
}
private RowFilter createFamilyFilter(byte[] familyName) {
return RowFilter.newBuilder()
.setFamilyNameRegexFilterBytes(ByteStringer.wrap(quoteRegex(familyName)))
.build();
}
private RowFilter createColumnQualifierFilter(byte[] unquotedQualifier) {
return RowFilter.newBuilder()
.setColumnQualifierRegexFilter(ByteStringer.wrap(quoteRegex(unquotedQualifier)))
.build();
}