private static KeyValueSchema buildSchema(PTable table) {
KeyValueSchemaBuilder builder = new KeyValueSchemaBuilder(0);
if (table != null) {
for (PColumn column : table.getColumns()) {
if (!SchemaUtil.isPKColumn(column)) {
builder.addField(column);
}
}
}
return builder.build();
}
public TupleProjector(ProjectedPTableWrapper projected) {
List<PColumn> columns = projected.getTable().getColumns();
expressions = new Expression[columns.size() - projected.getTable().getPKColumns().size()];
// we do not count minNullableIndex for we might do later merge.
KeyValueSchemaBuilder builder = new KeyValueSchemaBuilder(0);
int i = 0;
for (PColumn column : projected.getTable().getColumns()) {
if (!SchemaUtil.isPKColumn(column)) {
builder.addField(column);
expressions[i++] = projected.getSourceExpression(column);
}
}
schema = builder.build();
valueSet = ValueBitSet.newInstance(schema);
}
private KeyValueSchema generateSchema(int nFields, int nRepeating, final int nNotNull) {
KeyValueSchemaBuilder builder = new KeyValueSchemaBuilder(nNotNull);
for (int i = 0; i < nFields; i++) {
final int fieldIndex = i;
for (int j = 0; j < nRepeating; j++) {
PDatum datum =
new PDatum() {
@Override
public boolean isNullable() {
return fieldIndex <= nNotNull;
}
@Override
public PDataType getDataType() {
return PDataType.values()[fieldIndex % PDataType.values().length];
}
@Override
public Integer getByteSize() {
return !getDataType().isFixedWidth()
? null
: getDataType().getByteSize() == null
? FIXED_WIDTH_CHAR_SIZE
: getDataType().getByteSize();
}
@Override
public Integer getMaxLength() {
return null;
}
@Override
public Integer getScale() {
return null;
}
@Override
public SortOrder getSortOrder() {
return SortOrder.getDefault();
}
};
builder.addField(datum);
}
}
KeyValueSchema schema = builder.build();
return schema;
}
