@Override
public void toJSONString(JSONStringer stringer) throws JSONException {
super.toJSONString(stringer);
stringer.keySymbolValuePair(Members.COLUMN_IDX, m_columnIndex);
if (m_tableIdx > 0) {
stringer.keySymbolValuePair(Members.TABLE_IDX, m_tableIdx);
}
}
@Override
public void toJSONString(JSONStringer stringer) throws JSONException {
super.toJSONString(stringer);
stringer.key(Members.COLUMN_IDX.name()).value(m_columnIndex);
stringer.key(Members.TABLE_NAME.name()).value(m_tableName);
stringer.key(Members.COLUMN_NAME.name()).value(m_columnName);
stringer.key(Members.COLUMN_ALIAS.name()).value(m_columnAlias);
}
@Override
public void toJSONString(JSONStringer stringer) throws JSONException {
super.toJSONString(stringer);
stringer.key(Members.COLUMN_IDX.name()).value(m_columnIndex);
stringer.key(Members.TABLE_NAME.name()).value(m_tableName);
// Column name is not required in the EE but testing showed that it is
// needed to support type resolution of indexed expressions in the planner
// after they get round-tripped through the catalog's index definition.
stringer.key(Members.COLUMN_NAME.name()).value(m_columnName);
}
@Override
public void validate() throws Exception {
super.validate();
if ((m_right != null) || (m_left != null))
throw new Exception("ERROR: A value expression has child expressions for '" + this + "'");
// Column Index
if (m_columnIndex < 0) {
throw new Exception("ERROR: Invalid column index '" + m_columnIndex + "' for '" + this + "'");
}
}
@Override
public void validate() throws Exception {
super.validate();
// Make sure our value is not null
if (m_value == null && !m_isNull) {
throw new Exception("ERROR: The constant value for '" + this + "' is inconsistently null");
// Make sure the value type is something we support here
} else if (m_valueType == VoltType.NULL || m_valueType == VoltType.VOLTTABLE) {
throw new Exception(
"ERROR: Invalid constant value type '" + m_valueType + "' for '" + this + "'");
}
}
@Override
public void toJSONString(JSONStringer stringer) throws JSONException {
super.toJSONString(stringer);
stringer.key(Members.ISNULL.name());
stringer.value(m_isNull);
stringer.key(Members.VALUE.name());
if (m_isNull) {
stringer.value("NULL");
} else {
switch (m_valueType) {
case INVALID:
throw new JSONException(
"ConstantValueExpression.toJSONString(): value_type should never be VoltType.INVALID");
case NULL:
stringer.value("null");
break;
case TINYINT:
stringer.value(Long.valueOf(m_value));
break;
case SMALLINT:
stringer.value(Long.valueOf(m_value));
break;
case INTEGER:
stringer.value(Long.valueOf(m_value));
break;
case BIGINT:
stringer.value(Long.valueOf(m_value));
break;
case FLOAT:
stringer.value(Double.valueOf(m_value));
break;
case STRING:
stringer.value(m_value);
break;
case VARBINARY:
stringer.value(m_value);
break;
case TIMESTAMP:
stringer.value(Long.valueOf(m_value));
break;
case DECIMAL:
stringer.value(m_value);
break;
default:
throw new JSONException(
"ConstantValueExpression.toJSONString(): Unrecognized value_type " + m_valueType);
}
}
}
