Reference Guide

CassandraAlertDao.java:
@Override
public CassandraAlert convert(CassandraStorable<String, String> source) {
if (source == null) {
throw new NullPointerException(...);
}
final CassandraAlert alert = new CassandraAlert(source.getId());
ColumnVisitor<String> visitor = new ColumnVisitorAdapter<String>() {
@Override
public void visit(BooleanColumn<String> column) {
alert.setState(column.getValue());
}
@Override
public void visit(DateColumn<String> column) {
alert.setTimestamp(column.getValue());
}
@Override
public void visit(StringColumn<String> column) {
if (AlertColumnFamily.DESC_COL_NAME.equals(column.getName())) {
alert.setDescription(column.getValue());
} else if (AlertColumnFamily.ORIGIN_COL_NAME
.equals(column.getName())) {
alert.setOrigin(column.getValue());
} else if (AlertColumnFamily.TOPIC_COL_NAME
.equals(column.getName())) {
alert.setTopicId(column.getValue());
} else if (AlertColumnFamily.SYS_ID_NAME
.equals(column.getName())) {
alert.setSysId(column.getValue());
}
}
@Override
public void visit(EnumColumn<String, ? extends Enum<?>> column) {
if (AlertColumnFamily.SEVERITY_COL_NAME
.equals(column.getName())) {
alert.setSeverity((Severity) column.getValue());
}
}
};
for(Column<String, ?> col : source.getColumns()) {
col.accept(visitor);
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