public void unparse(SqlWriter writer, int leftPrec, int rightPrec) {
switch (typeName) {
case BOOLEAN:
writer.keyword(value == null ? "UNKNOWN" : (Boolean) value ? "TRUE" : "FALSE");
break;
case NULL:
writer.keyword("NULL");
break;
case CHAR:
case DECIMAL:
case DOUBLE:
case BINARY:
// should be handled in subtype
throw Util.unexpected(typeName);
case SYMBOL:
if (value instanceof Enum) {
Enum enumVal = (Enum) value;
writer.keyword(enumVal.toString());
} else {
writer.keyword(String.valueOf(value));
}
break;
default:
writer.literal(value.toString());
}
}
public void unparse(SqlWriter writer, SqlCall call, int leftPrec, int rightPrec) {
final SqlWriter.Frame frame = writer.startFunCall(getName());
call.operand(0).unparse(writer, leftPrec, rightPrec);
writer.sep("FROM");
call.operand(1).unparse(writer, leftPrec, rightPrec);
writer.endFunCall(frame);
}
public void unparse(SqlWriter writer, SqlNode[] operands, int leftPrec, int rightPrec) {
final SqlWriter.Frame frame = writer.startFunCall(getName());
operands[0].unparse(writer, leftPrec, rightPrec);
writer.sep("PLACING");
operands[1].unparse(writer, leftPrec, rightPrec);
writer.sep("FROM");
operands[2].unparse(writer, leftPrec, rightPrec);
if (4 == operands.length) {
writer.sep("FOR");
operands[3].unparse(writer, leftPrec, rightPrec);
}
writer.endFunCall(frame);
}
@Override
public void unparse(SqlWriter writer, SqlCall call, int leftPrec, int rightPrec) {
super.unparse(writer, call, leftPrec, rightPrec);
if (withOrdinality) {
writer.keyword("WITH ORDINALITY");
}
}
void commaList(SqlWriter writer) {
// The precedence of the comma operator if low but not zero. For
// instance, this ensures parentheses in
// select x, (select * from foo order by z), y from t
for (SqlNode node : list) {
writer.sep(",");
node.unparse(writer, 2, 3);
}
}
public void unparse(SqlWriter writer, SqlNode[] operands, int leftPrec, int rightPrec) {
final SqlWriter.Frame frame = writer.startList(BetweenFrameType, "", "");
operands[VALUE_OPERAND].unparse(writer, getLeftPrec(), 0);
writer.sep(getName());
operands[SYMFLAG_OPERAND].unparse(writer, 0, 0);
// If the expression for the lower bound contains a call to an AND
// operator, we need to wrap the expression in parentheses to prevent
// the AND from associating with BETWEEN. For example, we should
// unparse
// a BETWEEN b OR (c AND d) OR e AND f
// as
// a BETWEEN (b OR c AND d) OR e) AND f
// If it were unparsed as
// a BETWEEN b OR c AND d OR e AND f
// then it would be interpreted as
// (a BETWEEN (b OR c) AND d) OR (e AND f)
// which would be wrong.
int lowerPrec = new AndFinder().containsAnd(operands[LOWER_OPERAND]) ? 100 : 0;
operands[LOWER_OPERAND].unparse(writer, lowerPrec, lowerPrec);
writer.sep("AND");
operands[UPPER_OPERAND].unparse(writer, 0, getRightPrec());
writer.endList(frame);
}
void andOrList(SqlWriter writer, SqlKind sepKind) {
SqlBinaryOperator sepOp =
sepKind == SqlKind.AND ? SqlStdOperatorTable.AND : SqlStdOperatorTable.OR;
for (int i = 0; i < list.size(); i++) {
SqlNode node = list.get(i);
writer.sep(sepKind.name(), false);
// The precedence pulling on the LHS of a node is the
// right-precedence of the separator operator, except at the start
// of the list; similarly for the RHS of a node. If the operator
// has left precedence 4 and right precedence 5, the precedences
// in a 3-node list will look as follows:
// 0 <- node1 -> 4 5 <- node2 -> 4 5 <- node3 -> 0
int lprec = (i == 0) ? 0 : sepOp.getRightPrec();
int rprec = (i == (list.size() - 1)) ? 0 : sepOp.getLeftPrec();
node.unparse(writer, lprec, rprec);
}
}
public void unparse(SqlWriter writer, SqlNode[] operands, int leftPrec, int rightPrec) {
assert operands.length >= 2;
final SqlWriter.Frame frame = writer.startList(SqlWriter.FrameTypeEnum.Simple);
operands[0].unparse(writer, leftPrec, getLeftPrec());
final boolean needsSpace = true;
writer.setNeedWhitespace(needsSpace);
writer.sep("AS");
writer.setNeedWhitespace(needsSpace);
operands[1].unparse(writer, getRightPrec(), rightPrec);
if (operands.length > 2) {
final SqlWriter.Frame frame1 = writer.startList(SqlWriter.FrameTypeEnum.Simple, "(", ")");
for (int i = 2; i < operands.length; i++) {
SqlNode operand = operands[i];
writer.sep(",", false);
operand.unparse(writer, 0, 0);
}
writer.endList(frame1);
}
writer.endList(frame);
}
/** Appends additional sqlWhere in relationship if any to the end of the join. */
private void appendAdditionalJoinCondition(
SqlWriter writer,
DatabaseType databaseType,
final String sourceVarName,
final String targetVarName) {
if (relationship.getSqlFilter() == null || relationship.getSqlFilter().length() == 0) {
return;
}
Node node = NodeFactory.parseExpression(relationship.getSqlFilter());
NodeVisitor visit =
new AbstractNodeVisitor() {
@Override
public boolean visitIdentifier(Identifier identifier) {
String path = identifier.getName();
int dotPos = path.indexOf('.');
if (dotPos < 0) {
throw new EJBQLException(
"Invalid sqlWhere in relationship: "
+ relationship
+ " - "
+ relationship.getSqlFilter());
}
String entityName = path.substring(0, dotPos);
if (entityName.equals(relationship.getSourceEntity().getSystemName())
|| entityName.equals(relationship.getSourceEntity().getTableName())) {
identifier.setName(sourceVarName + path.substring(dotPos));
} else if (entityName.equals(relationship.getTargetEntity().getSystemName())
|| entityName.equals(relationship.getTargetEntity().getTableName())) {
identifier.setName(targetVarName + path.substring(dotPos));
}
return true;
}
};
node.accept(visit);
writer.write(" AND ");
node.toString(writer, databaseType);
}
@Test
public void should_use_custom_names_from_property() {
String sql = sqlWriter.insert(CustomNamePropertyEntity.class);
assertEquals("INSERT INTO myTableName(customDateColumn) VALUES(?)", Utils.singleLine(sql));
}
@Test
public void should_use_field() {
String sql = sqlWriter.insert(SimpleEntity.class);
assertEquals("INSERT INTO SimpleEntity(name) VALUES(?)", Utils.singleLine(sql));
}
public void unparse(SqlWriter writer, int leftPrec, int rightPrec) {
final SqlWriter.Frame frame =
((leftPrec > 0) || (rightPrec > 0)) ? writer.startList("(", ")") : writer.startList("", "");
commaList(writer);
writer.endList(frame);
}
@Override
public void toString(SqlWriter writer, DatabaseType databaseType) {
if (context == null) {
writer.write(joinType == TYPE_INNER_JOIN ? "INNER JOIN" : "LEFT OUTER JOIN").write(" ");
if (fetch) {
writer.write("FETCH ").write(schemaName);
} else {
writer.write(schemaName).write(" ").write(variableName);
}
} else { // compiled.
if (joinType == TYPE_JOIN_TO_OUTER_QUERY) {
// no need to join, as join is handled in the where clause.
writer
.write(relationship.getTargetEntity().getTableName())
.append(' ')
.append(variableName);
return;
}
// normal joins - INNER/LEFT OUTER JOINS.
writer.write(joinType == TYPE_INNER_JOIN ? "INNER JOIN" : "LEFT OUTER JOIN").write(" ");
RelationshipJoinTable joinTable = relationship.getJoinTable();
// retrieve the source table info.
String schemaParent = QueryUtil.getPathParent(schemaName);
PathInfo sourceTable = context.getPathInfo(schemaParent);
if (sourceTable == null) {
throw new EJBQLException("Can not find source reference in the context: " + schemaParent);
}
String sourceTableVarName = sourceTable.varName;
if (joinTable == null) { // without join table.
// To-one may have filter too
boolean hasFilter = /*relationship.isToMany() &&*/
!StringUtilities.isEmpty(relationship.getSqlFilter());
writer.write(relationship.getTargetEntity().getTableName()).write(" ").write(variableName);
writer.write(" ON ");
if (hasFilter) {
writer.append("(");
}
writer
.append(sourceTableVarName)
.append('.')
.append(relationship.getSourceAttribute().getSystemName());
writer
.write(" = ")
.append(variableName)
.append('.')
.append(relationship.getTargetAttribute().getSystemName());
if (hasFilter) {
String filterCondition = relationship.getSqlFilter();
filterCondition = filterCondition.replace("{T}", variableName);
filterCondition = filterCondition.replace("{S}", sourceTableVarName);
writer.append(" AND ").append(filterCondition).append(")");
}
// filter org id and status since such filtering can not be done in WHERE otherwise break
// LEFT OUTER JOIN (see comments in SelectStatement.toString).
// added on Apr 13, 2010 by Jack
if (getJoinType() == Join.TYPE_LEFT_OUTER_JOIN) {
SelectStatement selectStmt = (SelectStatement) getFirstAncestor(TYPE_SELECT_STATEMENT);
if (selectStmt == null) {
throw new RuntimeException("Should not reach here 67584");
}
boolean multitenancy =
!((Entity) relationship.getTargetEntity()).isCoreEntity()
&& // this line avoid loading metadata being hung.
EOThreadLocal.getEOService() != null
&& EOThreadLocal.getEOService().getMetaDomain() != null
&& EOThreadLocal.getEOService().getMetaDomain().multitenancy;
if (multitenancy
&& selectStmt.isOrgSpecific(schemaName, relationship.getTargetEntity())) {
writer
.append(" AND ")
.append(variableName)
.append('.')
.append(EOConstants.COL_ORG_ID)
.append(" = ")
.append(EOThreadLocal.getOrgId());
}
boolean softDeletion =
EOThreadLocal.getEOService() != null
&& EOThreadLocal.getEOService().getMetaDomain() != null
&& !EOThreadLocal.getEOService().getMetaDomain().hardDeletion;
if (softDeletion) {
writer
.append(" AND ")
.append(variableName)
.append('.')
.append(EOConstants.COL_STATUS)
.append(" <> ")
.append(EOConstants.STATUS_DELETED);
}
}
} else { // with join table.
String joinTableVarName =
context.generateUniqueVarName(joinTable.getTableName().substring(0, 1));
// join the join table first.
writer.write(joinTable.getTableName()).append(' ').write(joinTableVarName);
writer
.write(" ON ")
.append(sourceTableVarName)
.append('.')
.append(relationship.getSourceAttribute().getSystemName());
writer
.write(" = ")
.append(joinTableVarName)
.append('.')
.append(joinTable.getSourceIdColumnName());
// then the target entity.
writer.write(" INNER JOIN ");
writer.write(relationship.getTargetEntity().getTableName()).write(" ").write(variableName);
writer
.write(" ON ")
.append(joinTableVarName)
.append('.')
.append(joinTable.getTargetIdColumnName());
writer
.write(" = ")
.append(variableName)
.append('.')
.append(relationship.getTargetAttribute().getSystemName());
}
// additional sqlWhere in relationship.
// Commented out by Jack on Mar 29, 2009 - sqlFilter has already been handled in above code.
// appendAdditionalJoinCondition(writer, databaseType, sourceTableVarName, variableName);
}
}
public void unparse(SqlWriter writer, int leftPrec, int rightPrec) {
writer.print("?");
writer.setNeedWhitespace(false);
}
public void unparse(
SqlWriter writer, SqlOperator operator, SqlCall call, int leftPrec, int rightPrec) {
assert call.operandCount() == 1;
call.operand(0).unparse(writer, operator.getLeftPrec(), operator.getRightPrec());
writer.keyword(operator.getName());
}