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oracle.adf.model.meta.bc4j
Class BC4JViewObjectAccessorDefinition

java.lang.Object
oracle.adf.model.meta.bc4j.BC4JViewObjectAccessorDefinition

All Implemented Interfaces:

AccessorDefinition, AttributeDefinition, Definition, NamedDefinition, VariableDefinition

public class BC4JViewObjectAccessorDefinition

extends java.lang.Object

implements AccessorDefinition

Field Summary

Fields inherited from interface oracle.binding.meta.Definition

TYPE_ACCESSOR, TYPE_ATTRIBUTE, TYPE_CRITERIA, TYPE_CRITERIA_ITEM, TYPE_CRITERIA_OPERATOR, TYPE_CRITERIA_ROW, TYPE_DATACONTROL, TYPE_DEFINITION, TYPE_DEFINITIONCONTEXT, TYPE_NAMED, TYPE_OPERATION, TYPE_OPERATIONRETURN, TYPE_PARAMETER, TYPE_STRUCTURE, TYPE_VARIABLE

Constructor Summary

BC4JViewObjectAccessorDefinition(BC4JDataControlStructureDefinition datacontrolDefinition, ViewObject viewObject)

Method Summary

StructureDefinition	getCollectionStructure() Retrieves the metadata of the collection itself.
DataControlDefinition	getDataControlDefinition() Retrieves the DataControlDefinition that this Variable belongs to.
Definition	getDefinitionParent() Returns the parent of this metadata definition, which is the Definition that contains this Definition.
int	getDefinitionType() Retrieves the type of this definition.
java.lang.String	getFullName() Returns the full name of this Definition, which includes the name of any parent objects.
java.lang.String	getJavaTypeString() Retrieves the type of the variable.
java.lang.String	getName() Returns the name of this Definition.
AccessorDefinition	getParentAccessor() Retrieves the AccessorDefinition of the parent accessor.
java.util.Hashtable	getProperties() Gets the table of properties.
java.lang.Object	getProperty(java.lang.String propertyName) Retrieves the value of a property with the given name.
java.lang.String	getSourceTypeString() Returns the actual java type of the attribute in the data source.
StructureDefinition	getStructure() Retrieves the metadata of the elements that the accessor collection contains.
boolean	isCollection() Since an accessor can return a structured object (or a collection).
boolean	isKey() Finds out whether this attribute is the primary key of the row.
boolean	isReadOnly() Finds out whether this attribute is read-only or is updateable.
boolean	isScalarCollection() Returns true if the accessor returns a collection of scalars.

Methods inherited from class java.lang.Object

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

Constructor Detail

BC4JViewObjectAccessorDefinition

public BC4JViewObjectAccessorDefinition(BC4JDataControlStructureDefinition datacontrolDefinition,
                                        ViewObject viewObject)

Method Detail

isCollection

public boolean isCollection()

Description copied from interface: AccessorDefinition

Since an accessor can return a structured object (or a collection). This function should return true when the accessor represents a collection.

Specified by:

isCollection in interface AccessorDefinition

Returns:

true if the accessor is a collection, false if it is a simple object such as a String or an int.

isScalarCollection

public boolean isScalarCollection()

Description copied from interface: AccessorDefinition

Returns true if the accessor returns a collection of scalars. Scalars are simple types that are not structured and are not collections.

Specified by:

isScalarCollection in interface AccessorDefinition

Returns:

true if the accessor is a collection of scalars, false otherwise.

getStructure

public StructureDefinition getStructure()

Description copied from interface: AccessorDefinition

Retrieves the metadata of the elements that the accessor collection contains.

Specified by:

getStructure in interface AccessorDefinition

Returns:

The metadata describing the structure of the elements in the accessor collection.

getCollectionStructure

public StructureDefinition getCollectionStructure()

Description copied from interface: AccessorDefinition

Retrieves the metadata of the collection itself. It is possible that the collection itself has operations defined, such as if the collection is a class that implements a java.util.Collection interface and contains methods for searching through its elements. Please note that this is different from the getStructure API, which returns the metadata of the collection elements.

Specified by:

getCollectionStructure in interface AccessorDefinition

Returns:

The metadata describing the structure of the collection, or null if there is none available for the collection.

getParentAccessor

public AccessorDefinition getParentAccessor()

Description copied from interface: AccessorDefinition

Retrieves the AccessorDefinition of the parent accessor. A parent accessor is the accessor from which this accessor is obtained from. For example, we have a Dept structure, which contains an accessor called emps that returns a collection of Employee. Each Employee structure in turn contains an accessor called address that returns a structured type Address. The parent accessor of address would be the accessor emps in the Dept structure.

Specified by:

getParentAccessor in interface AccessorDefinition

Returns:

The definition of the parent accessor.

isReadOnly

public boolean isReadOnly()

Description copied from interface: AttributeDefinition

Finds out whether this attribute is read-only or is updateable.

Specified by:

isReadOnly in interface AttributeDefinition

Returns:

True if this attribute is read-only, false otherwise.

isKey

public boolean isKey()

Description copied from interface: AttributeDefinition

Finds out whether this attribute is the primary key of the row.

Specified by:

isKey in interface AttributeDefinition

Returns:

True if this attribute is the primary key, false otherwise.

getSourceTypeString

public java.lang.String getSourceTypeString()

Description copied from interface: AttributeDefinition

Returns the actual java type of the attribute in the data source. This may be different from the java type returned by getJavaTypeString if the data control is returning an attribute as a different datatype as what it is in its data source. For example, if the source type is a java.lang.String representing some number, the java type of the attribute could be java.lang.Integer.

Specified by:

getSourceTypeString in interface AttributeDefinition

Returns:

The java type of the attribute in the data source.

getJavaTypeString

public java.lang.String getJavaTypeString()

Description copied from interface: VariableDefinition

Retrieves the type of the variable.

Specified by:

getJavaTypeString in interface VariableDefinition

Returns:

The fully qualified Java class name of the variable type.

getDataControlDefinition

public DataControlDefinition getDataControlDefinition()

Description copied from interface: VariableDefinition

Retrieves the DataControlDefinition that this Variable belongs to.

Specified by:

getDataControlDefinition in interface VariableDefinition

Returns:

The DataControlDefinition that this Variable belongs to.

getDefinitionParent

public Definition getDefinitionParent()

Description copied from interface: NamedDefinition

Returns the parent of this metadata definition, which is the Definition that contains this Definition. For example, the parent of an AttributeDefinition could be a StructureDefinition if the attribute is contained in the structure.

Specified by:

getDefinitionParent in interface NamedDefinition

Returns:

The parent Definition

getName

public java.lang.String getName()

Description copied from interface: NamedDefinition

Returns the name of this Definition.

Specified by:

getName in interface NamedDefinition

Returns:

Name of this Definition.

getFullName

public java.lang.String getFullName()

Description copied from interface: NamedDefinition

Returns the full name of this Definition, which includes the name of any parent objects. The full name should reflect the runtime nesting level.

Specified by:

getFullName in interface NamedDefinition

Returns:

Full name of this Definition.

getProperty

public java.lang.Object getProperty(java.lang.String propertyName)

Description copied from interface: NamedDefinition

Retrieves the value of a property with the given name. Properties can be used for UI hints such as display width and height.

Specified by:

getProperty in interface NamedDefinition

Parameters:

propertyName - Name of the property to be retrieved.

Returns:

Value of the property with the given property name.

getProperties

public java.util.Hashtable getProperties()

Description copied from interface: NamedDefinition

Gets the table of properties. This returns a hashtable to ensure any modification done by caller would be synchronized. Note that this API has not been added to the JSR yet.

Specified by:

getProperties in interface NamedDefinition

Returns:

a hashtable of properties.

getDefinitionType

public int getDefinitionType()

Description copied from interface: Definition

Retrieves the type of this definition. It can be one of the TYPE_* constants defined in this class. This is useful to find out the actual type of the Definition without doing an instanceof operations.

Specified by:

getDefinitionType in interface Definition

Returns:

The type of definition that this Definition implementation class implements.

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