public ColumnExpression(PDatum datum) {
this.type = datum.getDataType();
this.isNullable = datum.isNullable();
this.maxLength = datum.getMaxLength();
this.scale = datum.getScale();
this.sortOrder = datum.getSortOrder();
}
public void addParam(BindParseNode bind, PDatum datum) throws SQLException {
PDatum bindDatum = params[bind.getIndex()];
if (bindDatum != null
&& bindDatum.getDataType() != null
&& !datum.getDataType().isCoercibleTo(bindDatum.getDataType())) {
throw TypeMismatchException.newException(datum.getDataType(), bindDatum.getDataType());
}
params[bind.getIndex()] = datum;
}
public static int getFixedByteSize(PDatum e) {
assert (e.getDataType().isFixedWidth());
Integer maxLength = e.getMaxLength();
return maxLength == null ? e.getDataType().getByteSize() : maxLength;
}
public RowKeyColumnExpression(PDatum datum, RowKeyValueAccessor accessor, PDataType fromType) {
this(datum, accessor, fromType, datum.toString());
}
public RowKeyColumnExpression(PDatum datum, RowKeyValueAccessor accessor, String name) {
this(datum, accessor, datum.getDataType(), name);
}
public RowKeyColumnExpression(PDatum datum, RowKeyValueAccessor accessor) {
this(datum, accessor, datum.getDataType(), datum.toString());
}
@Override
public String getParameterClassName(int index) throws SQLException {
PDatum datum = getParam(index);
PDataType type = datum == null ? null : datum.getDataType();
return type == null ? null : type.getJavaClassName();
}