private String buildSQL(JDBCDeclaredQueryMetaData metadata) {
StringBuffer sql = new StringBuffer(300);
sql.append(SQLUtil.SELECT);
if (metadata.isSelectDistinct()) {
sql.append(SQLUtil.DISTINCT);
}
String alias = metadata.getAlias();
String from = metadata.getFrom();
String table;
String selectList;
if (metadata.getFieldName() == null) {
// we are selecting a full entity
table = this.entity.getQualifiedTableName();
// get a list of all fields to be loaded
// put pk fields in front
String tableAlias = getTableAlias(alias, from, this.entity.getTableName());
selectList =
SQLUtil.getColumnNamesClause(
this.entity.getPrimaryKeyFields(), tableAlias, new StringBuffer(35))
.toString();
} else {
// we are just selecting one field
JDBCStoreManager2 manager = (JDBCStoreManager2) selectedField.getManager();
table = manager.getEntityBridge().getQualifiedTableName();
selectList =
SQLUtil.getColumnNamesClause(
selectedField,
getTableAlias(alias, from, manager.getEntityBridge().getTableName()),
new StringBuffer())
.toString();
}
sql.append(selectList);
String additionalColumns = metadata.getAdditionalColumns();
if (additionalColumns != null) {
sql.append(additionalColumns);
}
sql.append(SQLUtil.FROM).append(table);
if (alias != null) {
sql.append(' ').append(alias);
}
if (from != null) {
sql.append(' ').append(from);
}
String where = metadata.getWhere();
if (where != null && where.trim().length() > 0) {
sql.append(SQLUtil.WHERE).append(where);
}
String order = metadata.getOrder();
if (order != null && order.trim().length() > 0) {
sql.append(SQLUtil.ORDERBY).append(order);
}
String other = metadata.getOther();
if (other != null && other.trim().length() > 0) {
sql.append(' ').append(other);
}
return sql.toString();
}
public void init() throws Exception {
dataSource = manager.getDataSource(metadata.getDataSourceName());
qualifiedTableName = SQLUtil.fixTableName(metadata.getDefaultTableName(), dataSource);
int dotIndex = qualifiedTableName.indexOf('.');
tableName = dotIndex == -1 ? qualifiedTableName : qualifiedTableName.substring(dotIndex + 1);
// CMP fields
loadCMPFields(metadata);
// CMR fields
loadCMRFields(metadata);
// create locking field
JDBCOptimisticLockingMetaData lockMetaData = metadata.getOptimisticLocking();
if (lockMetaData != null && lockMetaData.getLockingField() != null) {
JDBCOptimisticLockingMetaData.LockingStrategy strategy = lockMetaData.getLockingStrategy();
JDBCCMPFieldMetaData versionMD = lockMetaData.getLockingField();
versionField = getCMPFieldByName(versionMD.getFieldName());
boolean hidden = versionField == null;
switch (strategy) {
case VERSION_COLUMN_STRATEGY:
{
if (hidden) versionField = new JDBCLongVersionFieldBridge(manager, versionMD);
else versionField = new JDBCLongVersionFieldBridge((JDBCCMP2xFieldBridge) versionField);
break;
}
case TIMESTAMP_COLUMN_STRATEGY:
{
if (hidden) versionField = new JDBCTimestampVersionFieldBridge(manager, versionMD);
else
versionField =
new JDBCTimestampVersionFieldBridge((JDBCCMP2xFieldBridge) versionField);
break;
}
case KEYGENERATOR_COLUMN_STRATEGY:
{
if (hidden)
versionField =
new JDBCKeyGenVersionFieldBridge(
manager, versionMD, lockMetaData.getKeyGeneratorFactory());
else
versionField =
new JDBCKeyGenVersionFieldBridge(
(JDBCCMP2xFieldBridge) versionField, lockMetaData.getKeyGeneratorFactory());
break;
}
}
if (hidden) addCMPField(versionField);
else tableFields[versionField.getTableIndex()] = versionField;
}
// audit fields
JDBCAuditMetaData auditMetaData = metadata.getAudit();
if (auditMetaData != null) {
JDBCCMPFieldMetaData auditField = auditMetaData.getCreatedPrincipalField();
if (auditField != null) {
createdPrincipalField = getCMPFieldByName(auditField.getFieldName());
if (createdPrincipalField == null) {
createdPrincipalField = new JDBCCMP2xFieldBridge(manager, auditField);
addCMPField(createdPrincipalField);
}
} else {
createdPrincipalField = null;
}
auditField = auditMetaData.getCreatedTimeField();
if (auditField != null) {
createdTimeField = getCMPFieldByName(auditField.getFieldName());
if (createdTimeField == null) {
createdTimeField =
new JDBCCMP2xFieldBridge(manager, auditField, JDBCTypeFactory.EQUALS, false);
addCMPField(createdTimeField);
} else {
// just to override state factory and check-dirty-after-get
createdTimeField =
new JDBCCMP2xFieldBridge(
(JDBCCMP2xFieldBridge) createdTimeField, JDBCTypeFactory.EQUALS, false);
tableFields[createdTimeField.getTableIndex()] = createdTimeField;
}
} else {
createdTimeField = null;
}
auditField = auditMetaData.getUpdatedPrincipalField();
if (auditField != null) {
updatedPrincipalField = getCMPFieldByName(auditField.getFieldName());
if (updatedPrincipalField == null) {
updatedPrincipalField = new JDBCCMP2xUpdatedPrincipalFieldBridge(manager, auditField);
addCMPField(updatedPrincipalField);
} else {
updatedPrincipalField =
new JDBCCMP2xUpdatedPrincipalFieldBridge(
(JDBCCMP2xFieldBridge) updatedPrincipalField);
tableFields[updatedPrincipalField.getTableIndex()] = updatedPrincipalField;
}
} else {
updatedPrincipalField = null;
}
auditField = auditMetaData.getUpdatedTimeField();
if (auditField != null) {
updatedTimeField = getCMPFieldByName(auditField.getFieldName());
if (updatedTimeField == null) {
updatedTimeField = new JDBCCMP2xUpdatedTimeFieldBridge(manager, auditField);
addCMPField(updatedTimeField);
} else {
updatedTimeField =
new JDBCCMP2xUpdatedTimeFieldBridge((JDBCCMP2xFieldBridge) updatedTimeField);
tableFields[updatedTimeField.getTableIndex()] = updatedTimeField;
}
} else {
updatedTimeField = null;
}
}
// ejbSelect methods
loadSelectors(metadata);
}
