oracle.jbo.server

Class RowReference

java.lang.Object

oracle.jbo.common.NamedObjectImpl

oracle.jbo.server.NamedObjectImpl

oracle.jbo.server.ComponentObjectImpl

oracle.jbo.server.RowReference

All Implemented Interfaces:

ComponentObject, ComponentOperationsManager, GenericHints, DiffMergeable, DefPersistable, PersistentDefinition, OperationContainer, Properties, PropertyManager, ExprWrappable, VariableManagerOwner, VariableManagerOwnerBase

Direct Known Subclasses:

EntityReference, ViewReference

public class RowReference
extends ComponentObjectImpl
implements DefPersistable, DiffMergeable

 NAME
      RowReference.java - Base class for view object bases.
 DESCRIPTION


 NOTES


 VERSION
 MODIFIED   (MM/DD/YY)
 

Field Summary

Fields

Modifier and Type	Field and Description
static byte	EFFDT_USAGE_HAS_IMPLICIT_ATTRS
static java.lang.String	EFFDT_USAGE_HAS_IMPLICIT_ATTRS_STR
static byte	EFFDT_USAGE_NO_OVERRIDE
static byte	EFFDT_USAGE_OVERRIDE_FALSE
static java.lang.String	EFFDT_USAGE_OVERRIDE_FALSE_STR

Fields inherited from class oracle.jbo.common.NamedObjectImpl

mFullName, mObjName, mParent, mProperties, RES_ID_SUFFIX, RESID_SUFFIX

Fields inherited from interface oracle.jbo.mom.xml.DefPersistable

FLAG_DIRTY, FLAG_EDITABLE, FLAG_FROM_TIP, FLAG_LOAD_BASE, FLAG_LOAD_HL_DEFS, FLAG_MAJOR_VERSION_CHANGED, FLAG_MINOR_VERSION_CHANGED, FLAG_NEW, FLAG_NEW_RECURSE, FLAG_SKIP_WRITE, XML_STATEMENT

Fields inherited from interface oracle.jbo.GenericHints

DEFINITION_STATE_ACTIVE, DEFINITION_STATE_DEPRECATED, PROPERTY_DEFINITION_STATE, PROPERTY_ERROR_MSG, PROPERTY_LABEL, PROPERTY_LABEL_PLURAL, PROPERTY_TOOLTIP

Method Summary

Modifier and Type	Method and Description
void	applyDiffChildren(DifferDetails dif, DiffResolver resolver) Applies changes to children defs.
void	applyDiffContents(DifferDetails dif, DiffResolver resolver) When diff/merge operation is requested, we have the following three def objects:
DifferDetails	beginDiffObjects(DiffMergeable docDef, DiffMergeable orgDef, DifferDetails difDetails) This method is the entry point call when the diffing process begins on the document-level def.
DifferDetails	diffChildren(DiffMergeable docDef, DiffMergeable orgDef, DifferDetails difDetails) Performs diff of children defs.
DifferDetails	diffContents(DiffMergeable docDef, DiffMergeable orgDef, DifferDetails difDetails) Performs diff of scalar values.
DifferDetails	diffObjects(DiffMergeable docDef, DiffMergeable orgDef, DifferDetails difDetails) The work-horse method performing diff between two defs of this def type.
DifferDetails	ensureDifferDetails(DifferDetails difDetails) Ensures that we have a valid DifferDetails.
protected ViewAttributeDefImpl	findViewAttrDefByBaseAttrName(java.lang.String name, AttributeDefImpl attr)
protected ViewAttributeDefImpl	findViewAttrDefByViewAttrName(java.lang.String name, AttributeDefImpl attr)
protected ViewAttributeDefImpl	findViewAttributeDefImpl(java.lang.String name)
protected java.util.ArrayList	findViewAttributeDefImpls(AttributeDefImpl attr)
AssociationReference[]	getAssociationReferences()
DefObject	getDef()
java.lang.String	getDefTypeName() Returns the XML def type name of this defintion object, e.g., "PDefEntityObject".
java.lang.String	getDefXMLElementTag()
java.lang.String	getDefXMLNameSpace()
java.lang.String	getIdentificationAttributeName() return the attribute name for identification on an xml element.
int	getJoinType() Returns the join type if the Entity Reference participates in one.
static int	getJoinType(java.lang.String type)
static java.lang.String	getJoinTypeAsString(int joinType) Returns the join type as a String so that it can be used in SQL generation.
java.lang.String	getMergeableFullName() Returns the fully qualified name of the diff-mergeable definition object.
java.lang.String	getMergeableName() Returns the diff-mergeable definition's name (short form).
DefPersistable	getOrigObject()
ViewAttributeDefImpl[]	getViewAttributeDefImpls()
java.lang.String	getXMLElementTag() Returns a piece of static info for the type of object this is invoked upon.
boolean	isDeleteParticipant() Does this Referant Entity participate in the Delete processing in this usage.
boolean	isDirty() This method returns if an Object is modified from last save/load
boolean	isEffectiveDated() Checks if the underlying entity is used in an effective dated fashion or not.
boolean	isEntireObjectTable()
boolean	isInsertParticipant() Does this Referant Entity participate in the Delete processing in this usage.
boolean	isLockParticipant() Does this Referant Entity participate in the Lock processing in this usage.
boolean	isNew() This method returns if this object is previously persisted.
boolean	isNewRecurse()
boolean	isReadOnly()
boolean	isReference() Does this Referant Entity participate in the DML.
static boolean	isSame(RowReference left, RowReference right)
boolean	isSkipWrite()
boolean	isWriteObject(DefPersistable parentObj, DefWriter defWriter)
void	setDirty(boolean b) This method marks the Object dirty
void	setEntireObjectTable(boolean b)
void	setFullName(java.lang.String name) Give this object a fully-qualified name.
void	setJoinType(int joinType) Set the type of join.
void	setName(java.lang.String name) Name this object.
void	setNew(boolean b) This method marks the as previously persisted.
void	setNewRecurse(boolean b)
void	setOrigObject(DefPersistable origObject)
void	setReadOnly(boolean state) Set the Referant Entity to READ-ONLY entity usage
void	setReference(boolean state) Set the Referant Entity to REFERENCE-ONLY enable entity lookup on source key attribute change.
void	setSkipWrite(boolean b)
void	writeChildren(DefWriter jos) Writes the Object's children to the Persistent storage
void	writeContents(DefWriter jos) Objects should write their persistence output in this method
void	writeObject(DefWriter jos) Objects should write their persistence output in this method

Methods inherited from class oracle.jbo.server.ComponentObjectImpl

addListener, applyPersonalization, applyPersonalization, create, createRef, createVariableValueManager, editCodeSource, ensureCodeSource, ensureVariableManager, findPersDefObject, getAdfmConfigStartupProperty, getAllProperties, getApplicationModule, getBooleanAdfmConfigProperty, getCompListeners, getCompListenersList, getDefFullName, getDefinitionManager, getDefinitionState, getDefManager, getDefName, getDefScope, getFullNameForPersDef, getHintValue, getLabel, getLabelPlural, getMessageBundleClass, getOperationDefinitions, getProxyClassName, getProxyClassName, getResourceBundleDef, getResourceBundleDef, getRootApplicationModule, getRowOperationDefinitions, getScriptOperationDefinitions, getScriptRowOperationDefinitions, getStaticDefFullName, getStringFromMessageBundle, getStructureDef, getTooltip, getVariableManager, hasVariables, isDead, isDynamicCodeSourceEnabled, isPersonalized, isRegWithPiggyMan, lookupExprDef, remove, resolvePropertyRaw, setParent, setProxyClassName

Methods inherited from class oracle.jbo.server.NamedObjectImpl

isPropertyExpression, setParent, setPropertiesMap

Methods inherited from class oracle.jbo.common.NamedObjectImpl

allocatePropertyMap, getFullName, getName, getParent, getProperties, getPropertiesAsStrings, getPropertiesMap, getProperty, getProperty, getPropertyExpressionDef, getPropertyExpressionsMap, getPropertyExprEval, getPropertyMap, getPropertyNamesSet, getRawPropertyValue, getResourcesFromBundle, hasProperty, mergePropertyMap, refreshProperty, removeProperty, removeProperty, requiresNamePrefixedResId, resolveObjectProperty, setPropertiesMap2, setProperty, setProperty, setPropertyExpression, setPropertyExpressionMap, setPropertyMap, setRawPropertyValue

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface oracle.jbo.mom.xml.DefPersistable

getFullName

Methods inherited from interface oracle.jbo.ComponentObject

getFullName, getName

Methods inherited from interface oracle.jbo.Properties

getProperties, getProperty, getProperty, refreshProperty

Methods inherited from interface oracle.jbo.VariableManagerOwner

getName

Methods inherited from interface oracle.jbo.ComponentOperationsManager

getFullName

Methods inherited from interface oracle.jbo.PropertyManager

getProperty, removeProperty, setProperty

Field Detail

EFFDT_USAGE_NO_OVERRIDE

public static final byte EFFDT_USAGE_NO_OVERRIDE

See Also:

Constant Field Values

EFFDT_USAGE_OVERRIDE_FALSE

public static final byte EFFDT_USAGE_OVERRIDE_FALSE

See Also:

Constant Field Values

EFFDT_USAGE_HAS_IMPLICIT_ATTRS

public static final byte EFFDT_USAGE_HAS_IMPLICIT_ATTRS

See Also:

Constant Field Values

EFFDT_USAGE_OVERRIDE_FALSE_STR

public static final java.lang.String EFFDT_USAGE_OVERRIDE_FALSE_STR

See Also:

Constant Field Values

EFFDT_USAGE_HAS_IMPLICIT_ATTRS_STR

public static final java.lang.String EFFDT_USAGE_HAS_IMPLICIT_ATTRS_STR

See Also:

Constant Field Values

Method Detail

setName

public void setName(java.lang.String name)

Description copied from class: ComponentObjectImpl

Name this object.

Overrides:

setName in class ComponentObjectImpl

Parameters:

name - the name to be given to this object.

getMergeableName

public java.lang.String getMergeableName()

Description copied from interface: DiffMergeable

Returns the diff-mergeable definition's name (short form).

Specified by:

getMergeableName in interface DiffMergeable

Returns:

name of the def object

getMergeableFullName

public java.lang.String getMergeableFullName()

Description copied from interface: DiffMergeable

Returns the fully qualified name of the diff-mergeable definition object. It must uniquely identify the def object.

Specified by:

getMergeableFullName in interface DiffMergeable

Returns:

full name of the def object

isNew

public boolean isNew()

Description copied from interface: DefPersistable

This method returns if this object is previously persisted.

Specified by:

isNew in interface DefPersistable

Returns:

true if the Object is previously persisted. Returns false otherwise.

setNew

public void setNew(boolean b)

Description copied from interface: DefPersistable

This method marks the as previously persisted. By default all objects are new objects. When the object is persisted first time, that object is marked as 'not new' object

Specified by:

setNew in interface DefPersistable

Parameters:

b - If true the Object is marked as new object.

isNewRecurse

public boolean isNewRecurse()

Specified by:

isNewRecurse in interface DefPersistable

setNewRecurse

public void setNewRecurse(boolean b)

Specified by:

setNewRecurse in interface DefPersistable

isDirty

public boolean isDirty()

Description copied from interface: DefPersistable

This method returns if an Object is modified from last save/load

Specified by:

isDirty in interface DefPersistable

Returns:

Returns true if the Object is dirty. Returns false otherwise.

setDirty

public void setDirty(boolean b)

Description copied from interface: DefPersistable

This method marks the Object dirty

Specified by:

setDirty in interface DefPersistable

Parameters:

b - If true the Object is marked Dirty.

isSkipWrite

public boolean isSkipWrite()

Specified by:

isSkipWrite in interface DefPersistable

setSkipWrite

public void setSkipWrite(boolean b)

Specified by:

setSkipWrite in interface DefPersistable

isWriteObject

public boolean isWriteObject(DefPersistable parentObj,
                             DefWriter defWriter)

Specified by:

isWriteObject in interface DefPersistable

getOrigObject

public DefPersistable getOrigObject()

Specified by:

getOrigObject in interface DefPersistable

setOrigObject

public void setOrigObject(DefPersistable origObject)

Specified by:

setOrigObject in interface DefPersistable

setFullName

public void setFullName(java.lang.String name)

Description copied from class: NamedObjectImpl

Give this object a fully-qualified name.

Overrides:

setFullName in class NamedObjectImpl

Parameters:

name - this object's fully-qualified name; the package name concatenated with the class name.

getDef

public DefObject getDef()

Overrides:

getDef in class ComponentObjectImpl

Returns:

The DefObject this references.

getViewAttributeDefImpls

public ViewAttributeDefImpl[] getViewAttributeDefImpls()

Returns:

The attribute references.

getAssociationReferences

public AssociationReference[] getAssociationReferences()

Returns:

The association references.

isLockParticipant

public boolean isLockParticipant()

Does this Referant Entity participate in the Lock processing in this usage. TODO: Unless EntityReference objects are _only_ used by ViewDefImpl's this functionality should be inside of some QBI specific ER object.

Returns:

true if it does participate, false otherwise.

isDeleteParticipant

public boolean isDeleteParticipant()

Does this Referant Entity participate in the Delete processing in this usage. TODO: Unless EntityReference objects are _only_ used by ViewDefImpl's this functionality should be inside of some QBI specific ER object.

Returns:

true if it does participate, false otherwise.

isInsertParticipant

public boolean isInsertParticipant()

Does this Referant Entity participate in the Delete processing in this usage. TODO: Unless EntityReference objects are _only_ used by ViewDefImpl's this functionality should be inside of some QBI specific ER object.

Returns:

true if it does participate, false otherwise.

isEntireObjectTable

public boolean isEntireObjectTable()

setEntireObjectTable

public void setEntireObjectTable(boolean b)

setReference

public void setReference(boolean state)

Set the Referant Entity to REFERENCE-ONLY enable entity lookup on source key attribute change.

Parameters:

state - True to be REFERENCE, false otherwise.

setReadOnly

public void setReadOnly(boolean state)

Set the Referant Entity to READ-ONLY entity usage

Parameters:

state - True to be READONLY , false otherwise.

isReference

public boolean isReference()

Does this Referant Entity participate in the DML.

Returns:

true if it does participate, false otherwise.

findViewAttrDefByViewAttrName

protected ViewAttributeDefImpl findViewAttrDefByViewAttrName(java.lang.String name,
                                                             AttributeDefImpl attr)

findViewAttrDefByBaseAttrName

protected ViewAttributeDefImpl findViewAttrDefByBaseAttrName(java.lang.String name,
                                                             AttributeDefImpl attr)

findViewAttributeDefImpl

protected ViewAttributeDefImpl findViewAttributeDefImpl(java.lang.String name)

findViewAttributeDefImpls

protected java.util.ArrayList findViewAttributeDefImpls(AttributeDefImpl attr)

isReadOnly

public boolean isReadOnly()

writeObject

public void writeObject(DefWriter jos)

Description copied from interface: PersistentDefinition

Objects should write their persistence output in this method

Specified by:

writeObject in interface PersistentDefinition

Parameters:

jos - the Output storage for persistence

writeContents

public void writeContents(DefWriter jos)

Description copied from interface: PersistentDefinition

Objects should write their persistence output in this method

Specified by:

writeContents in interface PersistentDefinition

Parameters:

jos - the Output storage for persistence

writeChildren

public void writeChildren(DefWriter jos)

Description copied from interface: PersistentDefinition

Writes the Object's children to the Persistent storage

Specified by:

writeChildren in interface PersistentDefinition

Parameters:

jos - the Output storage for persistence

getDefTypeName

public java.lang.String getDefTypeName()

Description copied from interface: DiffMergeable

Returns the XML def type name of this defintion object, e.g., "PDefEntityObject".

Specified by:

getDefTypeName in interface DiffMergeable

Returns:

XML def type name

getXMLElementTag

public java.lang.String getXMLElementTag()

Description copied from interface: PersistentDefinition

Returns a piece of static info for the type of object this is invoked upon. Examples are PreparedStatements for insert, update, delete, and String containing a base the select statement for retrieving instances of this type through the SQLInputStream

Specified by:

getXMLElementTag in interface PersistentDefinition

Returns:

returns the Statement required to store in Persitent Storage. Incase of XML, it just returns the String. In the case of SQL a JDBC PreparedStatement is returned.

getDefXMLElementTag

public java.lang.String getDefXMLElementTag()

Specified by:

getDefXMLElementTag in interface PersistentDefinition

getDefXMLNameSpace

public java.lang.String getDefXMLNameSpace()

Specified by:

getDefXMLNameSpace in interface PersistentDefinition

getIdentificationAttributeName

public java.lang.String getIdentificationAttributeName()

Description copied from interface: PersistentDefinition

return the attribute name for identification on an xml element. Note, for most def objects, the string "Name" should be returned; for someone that has no "Name" attribute, you need to designate one. e.g. For adfmcatalog.xml, "fullName" is returned For most other metadatas, "Name" is returned

Specified by:

getIdentificationAttributeName in interface PersistentDefinition

setJoinType

public void setJoinType(int joinType)

Set the type of join. Valid values are the constants INNER_JOIN, LEFT_OUTER_JOIN, RIGHT_OUTER_JOIN and FULL_OUTER_JOIN. This setting is used to detect if the Entity Reference could be empty in a View Row. It does not effect the generation of SQL because it is done by the design time. For effecting the runtime SQL use the methods setFromClause and setWhereClause on the ViewDefImpl class.

Parameters:

joinType - The type of join

getJoinType

public int getJoinType()

Returns the join type if the Entity Reference participates in one.

Returns:

constant values NONE_JOIN_TYPE, INNER_JOIN_TYPE, LEFT_OUTER_JOIN_TYPE, RIGHT_OUTER_JOIN_TYPE or FULL_OUTER_JOIN_TYPE

getJoinTypeAsString

public static java.lang.String getJoinTypeAsString(int joinType)

Returns the join type as a String so that it can be used in SQL generation.

Returns:

a String object

getJoinType

public static int getJoinType(java.lang.String type)

isEffectiveDated

public boolean isEffectiveDated()

Checks if the underlying entity is used in an effective dated fashion or not. It is possible to query in all the effective dated entities irrespective of their start and end effective dates by turning off date effectivity in the usage. Once queried in, the entity will continue to exhibit its effective dated nature when updates are made.

Returns:

true if the usage is effective dated, otherwise.

isSame

public static boolean isSame(RowReference left,
                             RowReference right)

ensureDifferDetails

public DifferDetails ensureDifferDetails(DifferDetails difDetails)

Description copied from interface: DiffMergeable

Ensures that we have a valid DifferDetails.

This method is to create a DifferDetails object to be used for diffing if necessary. The difDetails may come in as null. By calling this method, we can ensure that a non-null difDetails is there. So, instead of writing:

    if (difDetails == null)
    {
       difDetails = new DifferDetails(..);
    }
    difDetails.addDiffDetail(..);
 

we can write

    (difDetails = diffMergeable.ensureDifferDetails(difDetails)).addDiffDetail(..);
 

Specified by:

ensureDifferDetails in interface DiffMergeable

Parameters:

difDetails - the incoming DifferDetails. It may be null.

Returns:

the same difDetails if it wasn't null coming in, or a new DifferDetails if the incoming difDetails was null

diffContents

public DifferDetails diffContents(DiffMergeable docDef,
                                  DiffMergeable orgDef,
                                  DifferDetails difDetails)

Description copied from interface: DiffMergeable

Performs diff of scalar values. Typically, scalar attr values are grouped into String, int, and boolean arrays -- one set coming from 'this' definition and the other set coming from orgDef. Then, help methods on DifferBase can be used to diff the attr values and accumulate the details of diff in difDetails.

Here is example code snippet:

    private static final String DIFF_STRING_ELEMS[] =
    {
       "MyStringVal1",
       "MyStringVal2"
    };

    private static final String DIFF_INT_ELEMS[] =
    {
       "MyIntVal",
    }

    public DifferDetails diffContents(DiffMergeable docDef, DiffMergeable orgDef, DifferDetails difDetails)
    {
       <Your-def-class> orgDefImpl = (<Your-def-class>) orgDef;

       final String editStringValues[] =
       {
          this.getMyStringVal1(),
          this.getMyStringVal2()
       };

       String orgStringValues[] = null;

       if (orgDef != null)
       {
          String orgV[] =
          {
             orgDefImpl.getMyStringVal1(),
             orgDefImpl.getMyStringVal2()
          };

          orgStringValues = orgV;
       }

       final int editIntValues[] =
       {
          this.getMyIntVal(),
       };

       int orgIntValues[] = null;

       if (orgDef != null)
       {
          int orgV[] =
          {
             orgDefImpl.getMyIntVal()
          };

          orgIntValues = orgV;
       }

       difDetails = DifferBase.diffStringArray(this, DIFF_STRING_ELEMS, editStringValues, orgStringValues, difDetails);
       difDetails = DifferBase.diffIntArray(this, DIFF_INT_ELEMS, editIntValues, orgIntValues, difDetails);

       return difDetails;
   }
 

Specified by:

diffContents in interface DiffMergeable

Parameters:

docDef - the document-level definition

orgDef - the original definition. It could be null if the definition did not exist originally

difDetails - the DifferDetails that accumulate the details of diff from the document-level (top-level) def

Returns:

the DifferDetails that has all the details of diff

diffChildren

public DifferDetails diffChildren(DiffMergeable docDef,
                                  DiffMergeable orgDef,
                                  DifferDetails difDetails)

Description copied from interface: DiffMergeable

Performs diff of children defs. This def should enumerate through all its children and diff them and accumulate details of diff into difDetails and return it at the end.

For example, if this def has Child1 and Child2, its implementation should look something like:

    public DifferDetails diffChildren(DiffMergeable docDef, DiffMergeable orgDef, DifferDetails difDetails)
    {
       difDetails = diffChildrenChild1(docDef, orgDef, difDetails);
       difDetails = diffChildrenChild1(docDef, orgDef, difDetails);

       return difDetails;
    }
 

where diffChildrenChild1() uses DifferChildren's helper method diffChildrenList to diff the child defs.

Specified by:

diffChildren in interface DiffMergeable

Parameters:

docDef - the document-level definition

orgDef - the original definition. It could be null if the definition did not exist originally

difDetails - the DifferDetails that accumulate the details of diff from the document-level (top-level) def

Returns:

the DifferDetails that has all the details of diff

beginDiffObjects

public DifferDetails beginDiffObjects(DiffMergeable docDef,
                                      DiffMergeable orgDef,
                                      DifferDetails difDetails)

Description copied from interface: DiffMergeable

This method is the entry point call when the diffing process begins on the document-level def. This document-level def may perform its setup or preparation operations and then traverse into nested (children) DiffMergeable's. 'this' object is the changed definition.

Specified by:

beginDiffObjects in interface DiffMergeable

Parameters:

docDef - the document-level definition

orgDef - the original definition. It could be null if the definition did not exist originally

difDetails - the DifferDetails that accumulate the details of diff from the document-level (top-level) def

Returns:

the DifferDetails that has all the details of diff

diffObjects

public DifferDetails diffObjects(DiffMergeable docDef,
                                 DiffMergeable orgDef,
                                 DifferDetails difDetails)

Description copied from interface: DiffMergeable

The work-horse method performing diff between two defs of this def type. Most typically, it will call diffContents to diff scalar values and diffChildren to diff children objects. The children objects themselves are expected to be DiffMergeable. 'this' object is the changed definition.

Specified by:

diffObjects in interface DiffMergeable

Parameters:

docDef - the document-level definition

orgDef - the original definition. It could be null if the definition did not exist originally

difDetails - the DifferDetails that accumulate the details of diff from the document-level (top-level) def

Returns:

the DifferDetails that has all the details of diff

applyDiffContents

public void applyDiffContents(DifferDetails dif,
                              DiffResolver resolver)

Description copied from interface: DiffMergeable

When diff/merge operation is requested, we have the following three def objects:

orgDef - original def object (from the branch point) editDef - def object into which changes are to be merge toMergeDef - def object to be merged (source of changes) For sandbox refresh operation, orgDef comes from the branch point, editDef from the sandbox, toMergeDef from the mainline of the repos. With these three defs, we first diff editDef against orgDef, producing editDifDetails.

Similarly, toMergeDef is diffed against orgDef, producing toMergeDifDetails. The diff engine then walks through these two sets of diffs and identifies conflicts. After the conflicts are all resolved, we apply appropriate changes to editDef.

applyDiffContents is called to apply changes to scalar values. dif contains the changed values to be applied to 'this' object. Use sample code like the following:

    public void applyDiffContents(DifferDetails dif, DiffResolver resolver)
    {
       DifferChangeMap detailMap = dif.getDetailMap();
       Object[] updValues;

       // DIFF_STRING_ELEMS from the above example code
       for (int j = 0; j < DIFF_STRING_ELEMS.length; j++)
       {
          if ((updValues = (Object[]) detailMap.getValue(DIFF_STRING_ELEMS[j])) != null)
          {
             switch(j)
             {
             case 0:
                setMyStringVal1((String) updValues[0]);
                break;
             case 1:
                 setMyStringVal2((String) updValues[0]);
                break;
             }
          }
       }

       for (int j = 0; j < DIFF_INT_ELEMS.length; j++)
       {
          if ((updValues = (Object[]) detailMap.getValue(DIFF_INT_ELEMS[j])) != null)
          {
             switch(j)
             {
             case 0:
                setMyIntVal((Integer) updValues[0]);
                break;
             }
          }
       }
    }
 

Notice that the index specified in the case statement is the array index of the attr in the String, int, or boolean array.

Specified by:

applyDiffContents in interface DiffMergeable

Parameters:

dif - changes to be applied to 'this' def

resolver - the diff resolver used in diff/merge operation

applyDiffChildren

public void applyDiffChildren(DifferDetails dif,
                              DiffResolver resolver)

Description copied from interface: DiffMergeable

Applies changes to children defs. dif contains the changes to be applied to the children. For each child def, this method should first retrieve the diff details for the child, which is of type DifferChildren. Then, it should call DifferChildren.applyDiffChanges(oracle.jbo.mom.DiffChildrenMerge, oracle.jbo.mom.DiffResolver) to perform the change operation.

applyChanges() requires a DiffChildrenMerge object, which has the insert, update, and remove methods. 'this' def object must provide implmementation of these operations.

Here is a sample:

    public void applyDiffChildren(DifferDetails dif, DiffResolver resolver)
    {
       DifferChangeMap detailMap = dif.getDetailMap();

       if (detailMap != null)
       {
          DifferChildren difChild1 = (DifferChildren) detailMap.getValue(<XML-tag-for-Child1>);

          if (difVCs != null)
          {
             DiffChildrenMerge dm = new DiffChildrenMerge()
             {
                public void insertChild(Object id, Object value)
                {
                   .. perform insert op for Child1 ..
                }

                public void updateChild(Object id, Object value, Object oldValue)
                {
                   .. perform update op for Child1 ..
                }

                public void removeChild(Object id)
                {
                   .. perform remove op for Child1 ..
                }
             };

             difChild1.applyDiffChanges(dm, resolver);
          }

          // Similarly for Child2
       }
    }
 

Specified by:

applyDiffChildren in interface DiffMergeable