Examples of org.eclipse.persistence.mappings.foundation.AbstractDirectMapping

Package org.eclipse.persistence.mappings.foundation

Examples of org.eclipse.persistence.mappings.foundation.AbstractDirectMapping

org.eclipse.persistence.mappings.foundation.AbstractDirectMapping
Purpose: Maps an attribute to the corresponding database field type. The list of field types that are supported by EclipseLink's direct to field mapping is dependent on the relational database being used. A converter can be used to convert between the object and data type if they do not match. @see Converter @see ObjectTypeConverter @see TypeConversionConverter @see SerializedObjectConverter @see ClassInstanceConverter @author Sati @since TopLink/Java 1.0

        }


        setFieldClassification(type);
        // CR#... Mapping must also have the field classification.
        if (getMapping().isDirectToFieldMapping()) {
            AbstractDirectMapping directMapping = (AbstractDirectMapping)getMapping();


            // Allow user to specify field type to override computed value. (i.e. blob, nchar)
            if (directMapping.getFieldClassification() == null) {
                directMapping.setFieldClassification(type);
            }
        }
    }

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    /**
     * INTERNAL:
     */
    protected AbstractDirectMapping processDirectMapKeyClass(MappedKeyMapAccessor mappedKeyMapAccessor) {
        AbstractDirectMapping keyMapping = new DirectToFieldMapping();


        // Get the map key field, defaulting and looking for attribute 
        // overrides. Set the field before applying a converter.
        DatabaseField mapKeyField = getDatabaseField(getReferenceDatabaseTable(), MetadataLogger.MAP_KEY_COLUMN);
        keyMapping.setField(mapKeyField);
        keyMapping.setIsReadOnly(mapKeyField.isReadOnly());
        keyMapping.setAttributeClassificationName(mappedKeyMapAccessor.getMapKeyClass().getName());
        keyMapping.setDescriptor(getDescriptor().getClassDescriptor());
        
        // Process a convert key or jpa converter for the map key if specified.
        processMappingKeyConverter(keyMapping, mappedKeyMapAccessor.getMapKeyConvert(), mappedKeyMapAccessor.getMapKeyClass());
        
        return keyMapping;

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     * @param fieldName is the name of the database column which corresponds
     * with the designated instance variable.
     * @return The newly created DatabaseMapping is returned.
     */
    public DatabaseMapping addDirectMapping(String attributeName, String fieldName) {
        AbstractDirectMapping mapping = newDirectMapping();


        mapping.setAttributeName(attributeName);
        mapping.setField(new DatabaseField(fieldName));


        return addMapping(mapping);
    }

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     * a variable accessed by the get and set methods of the class of objects which
     * the receiver describes maps in  the default manner for its type to the indicated
     * database field.
     */
    public DatabaseMapping addDirectMapping(String attributeName, String getMethodName, String setMethodName, String fieldName) {
        AbstractDirectMapping mapping = (AbstractDirectMapping)addDirectMapping(attributeName, fieldName);


        mapping.setSetMethodName(setMethodName);
        mapping.setGetMethodName(getMethodName);


        return mapping;
    }

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     * INTERNAL:
     * Set the DatabaseField that will represent the key in a DirectMapMapping.
     */
    public void setKeyField(DatabaseField keyField, ClassDescriptor descriptor) {
        if (keyMapping == null) {
            AbstractDirectMapping newKeyMapping = new DirectToFieldMapping();
            newKeyMapping.setField(keyField);
            newKeyMapping.setDescriptor(descriptor);
            setKeyMapping(newKeyMapping);
        }
        if (((DatabaseMapping)keyMapping).isDirectToFieldMapping()) {
            ((AbstractDirectMapping)keyMapping).setField(keyField);;
        }

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            if (mapping.getSetMethodName() != null) {
                method.addLine(mappingName + ".setSetMethodName(\"" + mapping.getSetMethodName() + "\");");
            }
        }
        if (mapping.isAbstractDirectMapping()) {
            AbstractDirectMapping directMapping = (AbstractDirectMapping)mapping;
            if (mapping.getDescriptor().isAggregateDescriptor()) {
                method.addLine(mappingName + ".setFieldName(\"" + directMapping.getField().getName() + "\");");
            } else {
                method.addLine(mappingName + ".setFieldName(\"" + directMapping.getField().getQualifiedName() + "\");");
            }
            if (directMapping.getNullValue() != null) {
                method.addLine(mappingName + ".setNullValue(" + printString(directMapping.getNullValue()) + ");");
            }
            Converter converter = directMapping.getConverter();
            if (converter != null) {
                addConverterLines(method, mappingName + "Converter", converter);
                method.addLine(mappingName + ".setConverter(" + mappingName + "Converter" + ");");
            }
        } else if (mapping.isForeignReferenceMapping()) {

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        }


        setFieldClassification(type);
        // CR#... Mapping must also have the field classification.
        if (getMapping().isDirectToFieldMapping()) {
            AbstractDirectMapping directMapping = (AbstractDirectMapping)getMapping();


            // Allow user to specify field type to override computed value. (i.e. blob, nchar)
            if (directMapping.getFieldClassification() == null) {
                directMapping.setFieldClassification(type);
            }
        }
    }

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     */
    public void initialize(DatabaseMapping mapping, Session session) {
        this.mapping = mapping;
        // CR#... Mapping must also have the field classification.
        if (getMapping().isDirectToFieldMapping()) {
            AbstractDirectMapping directMapping = (AbstractDirectMapping)getMapping();


            // Allow user to specify field type to override computed value. (i.e. blob, nchar)
            if (directMapping.getFieldClassification() == null) {
                directMapping.setFieldClassification(ClassConstants.APBYTE);
            }
        }
    }

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     * @param fieldName is the name of the database column which corresponds
     * with the designated instance variable.
     * @return The newly created DatabaseMapping is returned.
     */
    public DatabaseMapping addDirectMapping(String attributeName, String fieldName) {
        AbstractDirectMapping mapping = newDirectMapping();


        mapping.setAttributeName(attributeName);
        mapping.setField(new DatabaseField(fieldName));


        return addMapping(mapping);
    }

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     * a variable accessed by the get and set methods of the class of objects which
     * the receiver describes maps in  the default manner for its type to the indicated
     * database field.
     */
    public DatabaseMapping addDirectMapping(String attributeName, String getMethodName, String setMethodName, String fieldName) {
        AbstractDirectMapping mapping = (AbstractDirectMapping)addDirectMapping(attributeName, fieldName);


        mapping.setSetMethodName(setMethodName);
        mapping.setGetMethodName(getMethodName);


        return mapping;
    }

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