User: kvvinaymenon
Date: 01/07/11 08:03:26
Modified: src/main/org/jboss/ejb/plugins/jaws/metadata Tag: Branch_2_4
JawsEntityMetaData.java
Log:
Modified for support for stable row id based updates in databases like Oracle. The
jaws.xml file needs to include a <stable-rowid-column> field for the entity and its
value
should correspond to the name of the stable row id column e.g. rowid in Oracle.
Revision Changes Path
No revision
No revision
1.9.4.2 +214 -206
jboss/src/main/org/jboss/ejb/plugins/jaws/metadata/JawsEntityMetaData.java
Index: JawsEntityMetaData.java
===================================================================
RCS file:
/cvsroot/jboss/jboss/src/main/org/jboss/ejb/plugins/jaws/metadata/JawsEntityMetaData.java,v
retrieving revision 1.9.4.1
retrieving revision 1.9.4.2
diff -u -r1.9.4.1 -r1.9.4.2
--- JawsEntityMetaData.java 2001/07/03 16:40:13 1.9.4.1
+++ JawsEntityMetaData.java 2001/07/11 15:03:26 1.9.4.2
@@ -36,58 +36,61 @@
* @author <a href="[EMAIL PROTECTED]">Sebastien Alborini</a>
* @author <a href="mailto:[EMAIL PROTECTED]";>Dirk Zimmermann</a>
* @author <a href="mailto:[EMAIL PROTECTED]";>Vinay Menon</a>
- * @version $Revision: 1.9.4.1 $
+ * @version $Revision: 1.9.4.2 $
*/
public class JawsEntityMetaData extends MetaData implements XmlLoadable {
- // Constants -----------------------------------------------------
+ // Constants -----------------------------------------------------
- // Attributes ----------------------------------------------------
+ // Attributes ----------------------------------------------------
- // parent metadata structures
- private JawsApplicationMetaData jawsApplication;
- private EntityMetaData entity;
+ // parent metadata structures
+ private JawsApplicationMetaData jawsApplication;
+ private EntityMetaData entity;
- // the name of the bean (same as entity.getEjbName())
- private String ejbName = null;
+ // the name of the bean (same as entity.getEjbName())
+ private String ejbName = null;
- // the name of the table to use for this bean
- private String tableName = null;
+ // the name of the table to use for this bean
+ private String tableName = null;
- // do we have to try and create the table on deployment?
- private boolean createTable;
+ // do we have to try and create the table on deployment?
+ private boolean createTable;
- // do we have to drop the table on undeployment?
- private boolean removeTable;
+ // do we have to drop the table on undeployment?
+ private boolean removeTable;
- // do we use tuned updates?
- private boolean tunedUpdates;
+ // do we use tuned updates?
+ private boolean tunedUpdates;
+ //Enable fast updates based on stable row id column
+ private String stableRowIdColumn;
+
// do we use 'SELECT ... FOR UPDATE' syntax?
private boolean selectForUpdate;
- // is the bean read-only?
- private boolean readOnly;
- private int timeOut;
+ // is the bean read-only?
+ private boolean readOnly;
+ private int timeOut;
- // should the table have a primary key constraint?
- private boolean pkConstraint;
+ // should the table have a primary key constraint?
+ private boolean pkConstraint;
- // is the bean's primary key a composite object
- private boolean compositeKey;
+ // is the bean's primary key a composite object
+ private boolean compositeKey;
- // the class of the primary key
- private Class primaryKeyClass;
+ // the class of the primary key
+ private Class primaryKeyClass;
- // the fields we must persist for this bean
- private Hashtable cmpFields = new Hashtable();
+ // the fields we must persist for this bean
+ private Hashtable cmpFields = new Hashtable();
- // the fields that belong to the primary key (if composite)
- private ArrayList pkFields = new ArrayList();
+ // the fields that belong to the primary key (if composite)
+ private ArrayList pkFields = new ArrayList();
- // finders for this bean
- private ArrayList finders = new ArrayList();
+ // finders for this bean
+ private ArrayList finders = new ArrayList();
- // the bean level datasource
+ // the bean level datasource
/**
* This will now support datasources at the bean level. If no datasource
* has been specified at the bean level then the global datasource is used
@@ -96,104 +99,106 @@
* different datasources for different beans.
*
*/
- private DataSource dataSource=null;
+ private DataSource dataSource=null;
- /**
- * Here we store the basename of all detailed fields in jaws.xml
- * (e.g., "data" for "data.categoryPK").
- */
- private HashMap detailedFieldDescriptions = new HashMap();
+ /**
+ * Here we store the basename of all detailed fields in jaws.xml
+ * (e.g., "data" for "data.categoryPK").
+ */
+ private HashMap detailedFieldDescriptions = new HashMap();
- /**
- * This is the Boolean we store as value in detailedFieldDescriptions.
- */
- private static final Boolean detailedBoolean = new Boolean(true);
+ /**
+ * This is the Boolean we store as value in detailedFieldDescriptions.
+ */
+ private static final Boolean detailedBoolean = new Boolean(true);
- // Static --------------------------------------------------------
+ // Static --------------------------------------------------------
- // Constructors --------------------------------------------------
+ // Constructors --------------------------------------------------
- public JawsEntityMetaData(JawsApplicationMetaData app, EntityMetaData ent)
throws DeploymentException {
- // initialisation of this object goes as follows:
- // - constructor
- // - importXml() for standardjaws.xml and jaws.xml
+ public JawsEntityMetaData(JawsApplicationMetaData app, EntityMetaData ent)
throws DeploymentException {
+ // initialisation of this object goes as follows:
+ // - constructor
+ // - importXml() for standardjaws.xml and jaws.xml
- jawsApplication = app;
- entity = ent;
- ejbName = entity.getEjbName();
- compositeKey = entity.getPrimKeyField() == null;
+ jawsApplication = app;
+ entity = ent;
+ ejbName = entity.getEjbName();
+ compositeKey = entity.getPrimKeyField() == null;
- try {
- primaryKeyClass =
jawsApplication.getClassLoader().loadClass(entity.getPrimaryKeyClass());
- } catch (ClassNotFoundException e) {
- throw new DeploymentException("could not load primary key
class: " + entity.getPrimaryKeyClass());
- }
+ try {
+ primaryKeyClass =
jawsApplication.getClassLoader().loadClass(entity.getPrimaryKeyClass());
+ } catch (ClassNotFoundException e) {
+ throw new DeploymentException("could not load primary key class: " +
entity.getPrimaryKeyClass());
+ }
- // we replace the . by _ because some dbs die on it...
- // the table name may be overridden in importXml(jaws.xml)
- tableName = ejbName.replace('.', '_');
+ // we replace the . by _ because some dbs die on it...
+ // the table name may be overridden in importXml(jaws.xml)
+ tableName = ejbName.replace('.', '_');
- // build the metadata for the cmp fields now in case there is no
jaws.xml
- Iterator cmpFieldNames = entity.getCMPFields();
+ // build the metadata for the cmp fields now in case there is no jaws.xml
+ Iterator cmpFieldNames = entity.getCMPFields();
- while (cmpFieldNames.hasNext()) {
- String cmpFieldName = (String)cmpFieldNames.next();
- CMPFieldMetaData cmpField = new CMPFieldMetaData(cmpFieldName,
this);
+ while (cmpFieldNames.hasNext()) {
+ String cmpFieldName = (String)cmpFieldNames.next();
+ CMPFieldMetaData cmpField = new CMPFieldMetaData(cmpFieldName, this);
- cmpFields.put(cmpFieldName, cmpField);
- }
+ cmpFields.put(cmpFieldName, cmpField);
+ }
- // build the pkfields metadatas
- if (compositeKey) {
- Field[] pkClassFields = primaryKeyClass.getFields();
+ // build the pkfields metadatas
+ if (compositeKey) {
+ Field[] pkClassFields = primaryKeyClass.getFields();
- for (int i = 0; i < pkClassFields.length; i++) {
- Field pkField = pkClassFields[i];
- CMPFieldMetaData cmpField =
(CMPFieldMetaData)cmpFields.get(pkField.getName());
+ for (int i = 0; i < pkClassFields.length; i++) {
+ Field pkField = pkClassFields[i];
+ CMPFieldMetaData cmpField =
(CMPFieldMetaData)cmpFields.get(pkField.getName());
- if (cmpField == null) throw new
DeploymentException("Bean " + ejbName + " has PK of type " + primaryKeyClass.getName()
+ ", so it should have a cmp-field named " + pkField.getName());
+ if (cmpField == null) throw new DeploymentException("Bean " + ejbName +
" has PK of type " + primaryKeyClass.getName() + ", so it should have a cmp-field
named " + pkField.getName());
- pkFields.add(new PkFieldMetaData(pkField, cmpField,
this));
- }
+ pkFields.add(new PkFieldMetaData(pkField, cmpField, this));
+ }
- } else {
- String pkFieldName = entity.getPrimKeyField();
- CMPFieldMetaData cmpField =
(CMPFieldMetaData)cmpFields.get(pkFieldName);
+ } else {
+ String pkFieldName = entity.getPrimKeyField();
+ CMPFieldMetaData cmpField =
(CMPFieldMetaData)cmpFields.get(pkFieldName);
- pkFields.add(new PkFieldMetaData(cmpField, this));
- }
- }
+ pkFields.add(new PkFieldMetaData(cmpField, this));
+ }
+ }
- // Public --------------------------------------------------------
+ // Public --------------------------------------------------------
public JawsApplicationMetaData getJawsApplication() { return jawsApplication; }
- public EntityMetaData getEntity() { return entity; }
+ public EntityMetaData getEntity() { return entity; }
- public Iterator getCMPFields() { return cmpFields.values().iterator(); }
+ public Iterator getCMPFields() { return cmpFields.values().iterator(); }
- public CMPFieldMetaData getCMPFieldByName(String name) {
- return (CMPFieldMetaData)cmpFields.get(name);
- }
+ public CMPFieldMetaData getCMPFieldByName(String name) {
+ return (CMPFieldMetaData)cmpFields.get(name);
+ }
- public Iterator getPkFields() { return pkFields.iterator(); }
+ public Iterator getPkFields() { return pkFields.iterator(); }
public int getNumberOfPkFields() { return pkFields.size(); }
+
+ public String getTableName() { return tableName; }
- public String getTableName() { return tableName; }
+ public boolean getCreateTable() { return createTable; }
- public boolean getCreateTable() { return createTable; }
+ public boolean getRemoveTable() { return removeTable; }
- public boolean getRemoveTable() { return removeTable; }
+ public boolean hasTunedUpdates() { return tunedUpdates; }
- public boolean hasTunedUpdates() { return tunedUpdates; }
+ public String getStableRowIdColumn() { return stableRowIdColumn; }
- public boolean hasPkConstraint() { return pkConstraint; }
+ public boolean hasPkConstraint() { return pkConstraint; }
- public int getReadOnlyTimeOut() { return timeOut; }
+ public int getReadOnlyTimeOut() { return timeOut; }
- public boolean hasCompositeKey() { return compositeKey; }
+ public boolean hasCompositeKey() { return compositeKey; }
//Return appropriate datasource
public DataSource getDataSource()
@@ -210,37 +215,37 @@
}
}
- public String getDbURL() { return jawsApplication.getDbURL(); }
+ public String getDbURL() { return jawsApplication.getDbURL(); }
- public Iterator getFinders() { return finders.iterator(); }
+ public Iterator getFinders() { return finders.iterator(); }
- public String getName() { return ejbName; }
+ public String getName() { return ejbName; }
- public int getNumberOfCMPFields() { return cmpFields.size(); }
+ public int getNumberOfCMPFields() { return cmpFields.size(); }
- public Class getPrimaryKeyClass() { return primaryKeyClass; }
+ public Class getPrimaryKeyClass() { return primaryKeyClass; }
- public boolean isReadOnly() { return readOnly; }
+ public boolean isReadOnly() { return readOnly; }
- public Iterator getEjbReferences() { return entity.getEjbReferences(); }
+ public Iterator getEjbReferences() { return entity.getEjbReferences(); }
- public String getPrimKeyField() { return entity.getPrimKeyField(); }
+ public String getPrimKeyField() { return entity.getPrimKeyField(); }
- public boolean hasSelectForUpdate() { return selectForUpdate; }
+ public boolean hasSelectForUpdate() { return selectForUpdate; }
- // XmlLoadable implementation ------------------------------------
+ // XmlLoadable implementation ------------------------------------
- public void importXml(Element element) throws DeploymentException {
- // This method will be called:
- // - with element = <default-entity> from standardjaws.xml (always)
- // - with element = <default-entity> from jaws.xml (if provided)
- // - with element = <entity> from jaws.xml (if provided)
+ public void importXml(Element element) throws DeploymentException {
+ // This method will be called:
+ // - with element = <default-entity> from standardjaws.xml (always)
+ // - with element = <default-entity> from jaws.xml (if provided)
+ // - with element = <entity> from jaws.xml (if provided)
- // All defaults are set during the first call. The following calls
override them.
+ // All defaults are set during the first call. The following calls override
them.
- // get table name
- String tableStr = getElementContent(getOptionalChild(element,
"table-name"));
- if (tableStr != null) tableName = tableStr;
+ // get table name
+ String tableStr = getElementContent(getOptionalChild(element, "table-name"));
+ if (tableStr != null) tableName = tableStr;
//get the bean level datasouce name
String dataSourceName = getElementContent(getOptionalChild(element,
"datasource"));
@@ -261,101 +266,104 @@
}
}
}
+
+ // create table? If not provided, keep default.
+ String createStr = getElementContent(getOptionalChild(element,
"create-table"));
+ if (createStr != null) createTable =
Boolean.valueOf(createStr).booleanValue();
+
+ // remove table? If not provided, keep default.
+ String removeStr = getElementContent(getOptionalChild(element,
"remove-table"));
+ if (removeStr != null) removeTable =
Boolean.valueOf(removeStr).booleanValue();
+
+ // tuned updates? If not provided, keep default.
+ String tunedStr = getElementContent(getOptionalChild(element,
"tuned-updates"));
+ if (tunedStr != null) tunedUpdates = Boolean.valueOf(tunedStr).booleanValue();
+
+ //Get row id for fast stable row id based updates/deletes and inserts
+ stableRowIdColumn = getElementContent(getOptionalChild(element,
"stable-rowid-column"));
+
+ // read only? If not provided, keep default.
+ String roStr = getElementContent(getOptionalChild(element, "read-only"));
+ if (roStr != null) readOnly = Boolean.valueOf(roStr).booleanValue();
+
+ String sForUpStr = getElementContent(getOptionalChild(element,
"select-for-update"));
+ if (sForUpStr != null) selectForUpdate =
(Boolean.valueOf(sForUpStr).booleanValue());
+ selectForUpdate = selectForUpdate && !readOnly;
+
+ // read only timeout?
+ String toStr = getElementContent(getOptionalChild(element, "time-out"));
+ if (toStr != null) timeOut = Integer.valueOf(toStr).intValue();
+
+ // primary key constraint? If not provided, keep default.
+ String pkStr = getElementContent(getOptionalChild(element, "pk-constraint"));
+ if (pkStr != null) pkConstraint = Boolean.valueOf(pkStr).booleanValue();
+
+ // cmp fields
+ Iterator iterator = getChildrenByTagName(element, "cmp-field");
+
+ while (iterator.hasNext()) {
+ Element cmpField = (Element)iterator.next();
+ String fieldName = getElementContent(getUniqueChild(cmpField,
"field-name"));
+
+ CMPFieldMetaData cmpFieldMetaData = getCMPFieldByName(fieldName);
+ if (cmpFieldMetaData == null) {
+ // Before we throw an exception, we have to check for nested cmp-fields.
+ // We just add a new CMPFieldMetaData.
+ if (isDetailedFieldDescription(fieldName)) {
+ // We obviously have a cmp-field like "data.categoryPK" in jaws.xml
+ // and a cmp-field "data" in ejb-jar.xml.
+ // In this case, we assume the "data.categoryPK" as a detailed
description for "data".
+ cmpFieldMetaData = new CMPFieldMetaData(fieldName, this);
+ cmpFields.put(fieldName, cmpFieldMetaData);
+ }
+ else {
+ throw new DeploymentException("cmp-field '"+fieldName+"' found in
jaws.xml but not in ejb-jar.xml");
+ }
+ }
+ cmpFieldMetaData.importXml(cmpField);
+ }
+
+ // finders
+ iterator = getChildrenByTagName(element, "finder");
+
+ while (iterator.hasNext()) {
+ Element finder = (Element)iterator.next();
+ FinderMetaData finderMetaData = new FinderMetaData();
+ finderMetaData.importXml(finder);
+
+ finders.add(finderMetaData);
+ }
+
+ }
+
+ /**
+ * @return true For a fieldname declared in jaws.xml like "data.categoryPK" if
+ * there was a fieldname declared in ejb-jar.xml like "data".
+ */
+ private boolean isDetailedFieldDescription(String fieldName) {
+ String fieldBaseName = CMPFieldMetaData.getFirstComponent(fieldName);
+
+ if (detailedFieldDescriptions.containsKey(fieldBaseName)) {
+ return true;
+ }
- // create table? If not provided, keep default.
- String createStr = getElementContent(getOptionalChild(element,
"create-table"));
- if (createStr != null) createTable =
Boolean.valueOf(createStr).booleanValue();
-
- // remove table? If not provided, keep default.
- String removeStr = getElementContent(getOptionalChild(element,
"remove-table"));
- if (removeStr != null) removeTable =
Boolean.valueOf(removeStr).booleanValue();
-
- // tuned updates? If not provided, keep default.
- String tunedStr = getElementContent(getOptionalChild(element,
"tuned-updates"));
- if (tunedStr != null) tunedUpdates =
Boolean.valueOf(tunedStr).booleanValue();
-
- // read only? If not provided, keep default.
- String roStr = getElementContent(getOptionalChild(element,
"read-only"));
- if (roStr != null) readOnly = Boolean.valueOf(roStr).booleanValue();
-
- String sForUpStr = getElementContent(getOptionalChild(element,
"select-for-update"));
- if (sForUpStr != null) selectForUpdate =
(Boolean.valueOf(sForUpStr).booleanValue());
- selectForUpdate = selectForUpdate && !readOnly;
-
- // read only timeout?
- String toStr = getElementContent(getOptionalChild(element,
"time-out"));
- if (toStr != null) timeOut = Integer.valueOf(toStr).intValue();
-
- // primary key constraint? If not provided, keep default.
- String pkStr = getElementContent(getOptionalChild(element,
"pk-constraint"));
- if (pkStr != null) pkConstraint = Boolean.valueOf(pkStr).booleanValue();
-
- // cmp fields
- Iterator iterator = getChildrenByTagName(element, "cmp-field");
-
- while (iterator.hasNext()) {
- Element cmpField = (Element)iterator.next();
- String fieldName = getElementContent(getUniqueChild(cmpField,
"field-name"));
-
- CMPFieldMetaData cmpFieldMetaData =
getCMPFieldByName(fieldName);
- if (cmpFieldMetaData == null) {
- // Before we throw an exception, we have to check for
nested cmp-fields.
- // We just add a new CMPFieldMetaData.
- if (isDetailedFieldDescription(fieldName)) {
- // We obviously have a cmp-field like
"data.categoryPK" in jaws.xml
- // and a cmp-field "data" in ejb-jar.xml.
- // In this case, we assume the
"data.categoryPK" as a detailed description for "data".
- cmpFieldMetaData = new
CMPFieldMetaData(fieldName, this);
- cmpFields.put(fieldName, cmpFieldMetaData);
- }
- else {
- throw new DeploymentException("cmp-field
'"+fieldName+"' found in jaws.xml but not in ejb-jar.xml");
- }
- }
- cmpFieldMetaData.importXml(cmpField);
- }
-
- // finders
- iterator = getChildrenByTagName(element, "finder");
-
- while (iterator.hasNext()) {
- Element finder = (Element)iterator.next();
- FinderMetaData finderMetaData = new FinderMetaData();
- finderMetaData.importXml(finder);
-
- finders.add(finderMetaData);
- }
-
- }
-
- /**
- * @return true For a fieldname declared in jaws.xml like "data.categoryPK" if
- * there was a fieldname declared in ejb-jar.xml like "data".
- */
- private boolean isDetailedFieldDescription(String fieldName) {
- String fieldBaseName = CMPFieldMetaData.getFirstComponent(fieldName);
-
- if (detailedFieldDescriptions.containsKey(fieldBaseName)) {
- return true;
- }
-
- CMPFieldMetaData cmpFieldMetaData = getCMPFieldByName(fieldBaseName);
- if (cmpFieldMetaData == null) {
- return false;
- }
- else {
- detailedFieldDescriptions.put(fieldBaseName, detailedBoolean);
- cmpFields.remove(fieldBaseName);
- return true;
- }
- }
+ CMPFieldMetaData cmpFieldMetaData = getCMPFieldByName(fieldBaseName);
+ if (cmpFieldMetaData == null) {
+ return false;
+ }
+ else {
+ detailedFieldDescriptions.put(fieldBaseName, detailedBoolean);
+ cmpFields.remove(fieldBaseName);
+ return true;
+ }
+ }
- // Package protected ---------------------------------------------
+ // Package protected ---------------------------------------------
- // Protected -----------------------------------------------------
+ // Protected -----------------------------------------------------
- // Private -------------------------------------------------------
+ // Private -------------------------------------------------------
- // Inner classes -------------------------------------------------
+ // Inner classes -------------------------------------------------
}
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