Java FieldDescriptor类代码示例

import org.apache.ojb.broker.metadata.FieldDescriptor; //导入依赖的package包/类
private Object getReferenceFKValue(Object persistableObject, ObjectReferenceDescriptor chkRefCld, String fkName) {
    ClassDescriptor classDescriptor = getClassDescriptor(persistableObject.getClass());
    Object referenceObject = ObjectUtils.getPropertyValue(persistableObject, chkRefCld.getAttributeName());

    if (referenceObject == null) {
        return null;
    }

    FieldDescriptor[] refFkNames = chkRefCld.getForeignKeyFieldDescriptors(classDescriptor);
    ClassDescriptor refCld = getClassDescriptor(chkRefCld.getItemClass());
    FieldDescriptor[] refPkNames = refCld.getPkFields();


    Object fkValue = null;
    for (int i = 0; i < refFkNames.length; i++) {
        FieldDescriptor fkField = refFkNames[i];

        if (fkField.getAttributeName().equals(fkName)) {
            fkValue = ObjectUtils.getPropertyValue(referenceObject, refPkNames[i].getAttributeName());
            break;
        }
    }

    return fkValue;
}
 

import org.apache.ojb.broker.metadata.FieldDescriptor; //导入依赖的package包/类
/**
 * @see org.kuali.rice.krad.service.PersistenceService#getForeignKeyFieldName(java.lang.Object,
 *      java.lang.String, java.lang.String)
 */

@Override
public String getForeignKeyFieldName(Class persistableObjectClass, String attributeName, String pkName) {
	String fkName = "";
	ClassDescriptor classDescriptor = getClassDescriptor(persistableObjectClass);
	ObjectReferenceDescriptor objectReferenceDescriptor = classDescriptor.getObjectReferenceDescriptorByName(attributeName);
	if (objectReferenceDescriptor == null) {
		throw new RuntimeException("Attribute name " + attributeName + " is not a valid reference to class " + persistableObjectClass.getName());
	}
	ClassDescriptor referenceDescriptor = this.getClassDescriptor(objectReferenceDescriptor.getItemClass());

	FieldDescriptor[] fkFields = objectReferenceDescriptor.getForeignKeyFieldDescriptors(classDescriptor);
	FieldDescriptor[] pkFields = referenceDescriptor.getPkFields();
	for (int i = 0; i < pkFields.length; i++) {
		FieldDescriptor pkField = pkFields[i];
		if (pkField.getAttributeName().equals(pkName)) {
			fkName = fkFields[i].getAttributeName();
		}
	}
	return fkName;
}
 

import org.apache.ojb.broker.metadata.FieldDescriptor; //导入依赖的package包/类
/**
 * @see org.kuali.rice.krad.service.PersistenceService#getReferencesForForeignKey(java.lang.Class,
 *      java.lang.String)
 */

@Override
public Map getReferencesForForeignKey(Class persistableObjectClass, String attributeName) {
	Map referenceClasses = new HashMap();
	if (PersistableBusinessObject.class.isAssignableFrom(persistableObjectClass)) {
		ClassDescriptor classDescriptor = getClassDescriptor(persistableObjectClass);
		Vector objectReferences = classDescriptor.getObjectReferenceDescriptors();
		for (Iterator iter = objectReferences.iterator(); iter.hasNext();) {
			ObjectReferenceDescriptor referenceDescriptor = (ObjectReferenceDescriptor) iter.next();

			/*
			 * iterate through the fk keys for the reference object and if
			 * matches the attributeName add the class as a reference
			 */
			FieldDescriptor[] refFkNames = referenceDescriptor.getForeignKeyFieldDescriptors(classDescriptor);
			for (int i = 0; i < refFkNames.length; i++) {
				FieldDescriptor fkField = refFkNames[i];
				if (fkField.getAttributeName().equals(attributeName)) {
					referenceClasses.put(referenceDescriptor.getAttributeName(), referenceDescriptor.getItemClass());
				}
			}
		}
	}
	return referenceClasses;
}
 

import org.apache.ojb.broker.metadata.FieldDescriptor; //导入依赖的package包/类
/**
 * @see org.kuali.rice.krad.service.PersistenceService#getNestedForeignKeyMap(java.lang.Class)
 */

@Override
public Map getNestedForeignKeyMap(Class persistableObjectClass) {
	Map fkMap = new HashMap();
	ClassDescriptor classDescriptor = getClassDescriptor(persistableObjectClass);
	Vector objectReferences = classDescriptor.getObjectReferenceDescriptors();
	for (Iterator iter = objectReferences.iterator(); iter.hasNext();) {
		ObjectReferenceDescriptor objectReferenceDescriptor = (ObjectReferenceDescriptor) iter.next();
		ClassDescriptor referenceDescriptor = this.getClassDescriptor(objectReferenceDescriptor.getItemClass());

		FieldDescriptor[] fkFields = objectReferenceDescriptor.getForeignKeyFieldDescriptors(classDescriptor);
		FieldDescriptor[] pkFields = referenceDescriptor.getPkFields();
		for (int i = 0; i < pkFields.length; i++) {
			FieldDescriptor pkField = pkFields[i];
			fkMap.put(objectReferenceDescriptor.getAttributeName() + "." + pkField.getAttributeName(), fkFields[i].getAttributeName());
		}
	}

	return fkMap;
}
 

import org.apache.ojb.broker.metadata.FieldDescriptor; //导入依赖的package包/类
@Override
protected NodeData getAnnotationNodes(String enclosingClass, String fieldName, String mappedClass) {
    final FieldDescriptor fd = OjbUtil.findFieldDescriptor(mappedClass, fieldName, descriptorRepositories);

    if (fd != null) {
        final Class<?> fc = ResolverUtil.getType(enclosingClass, fieldName);
        final String columnType = fd.getColumnType();
        if (isLob(columnType)) {
            if (isValidFieldType(fc)) {
                return new NodeData(new MarkerAnnotationExpr(new NameExpr(SIMPLE_NAME)),
                        new ImportDeclaration(new QualifiedNameExpr(new NameExpr(PACKAGE), SIMPLE_NAME), false, false));
            } else {
                LOG.error(ResolverUtil.logMsgForField(enclosingClass, fieldName, mappedClass) + " is not a valid field type for the @Lob annotation, must be one of " + VALID_TYPES_STR);
            }
        }

        return null;
    }
    return null;
}
 

import org.apache.ojb.broker.metadata.FieldDescriptor; //导入依赖的package包/类
@Override
protected NodeData getAnnotationNodes(String enclosingClass, String fieldName, String mappedClass) {
    final FieldDescriptor fd = OjbUtil.findFieldDescriptor(mappedClass, fieldName, descriptorRepositories);

    if (fd != null) {
        final Class<?> fc = ResolverUtil.getType(enclosingClass, fieldName);

        if (isEnum(fc)) {
            final Comment fixme = new BlockComment("\nFIXME:\n" +
                    "Enums must be annotated with the @Enumerated annotation.\n " +
                    "The @Enumerated annotation should set the EnumType.\n" +
                    "If the EnumType is not set, then the Enumerated annotation is defaulted to EnumType.ORDINAL.\n" +
                    "This conversion program cannot tell whether EnumType.ORDINAL is the appropriate EnumType.");
            AnnotationExpr enumerated = new NormalAnnotationExpr(new NameExpr(SIMPLE_NAME), Collections.singletonList(new MemberValuePair("value", new NameExpr("EnumType."))));
            enumerated.setComment(fixme);
            return new NodeData(enumerated, new ImportDeclaration(new QualifiedNameExpr(new NameExpr(PACKAGE), SIMPLE_NAME), false, false),
                Collections.singletonList(new ImportDeclaration(new QualifiedNameExpr(new NameExpr(PACKAGE), "TemporalType"), false, false)));
        }
    }
    return null;
}
 

import org.apache.ojb.broker.metadata.FieldDescriptor; //导入依赖的package包/类
@Override
public NodeData resolve(Node node, String mappedClass) {
    if (!(node instanceof ClassOrInterfaceDeclaration)) {
        throw new IllegalArgumentException("this annotation belongs only on ClassOrInterfaceDeclaration");
    }

    final TypeDeclaration dclr = (TypeDeclaration) node;
    if (!(dclr.getParentNode() instanceof CompilationUnit)) {
        //handling nested classes
        return null;
    }
    final String name = dclr.getName();

    final Collection<FieldDescriptor> primaryKeyDescriptors = getPrimaryKeyDescriptors(mappedClass);

    if (primaryKeyDescriptors != null && primaryKeyDescriptors.size() > 1  && nodeContainsPkFields(dclr,
            primaryKeyDescriptors)) {
        final NodeAndImports<ClassOrInterfaceDeclaration> primaryKeyClass = createPrimaryKeyClass(name, primaryKeyDescriptors);
        final String pkClassName = primaryKeyClass.node.getName();
        return new NodeData(new SingleMemberAnnotationExpr(new NameExpr(SIMPLE_NAME), new NameExpr(name + "." + pkClassName + ".class")),
                new ImportDeclaration(new QualifiedNameExpr(new NameExpr(PACKAGE), SIMPLE_NAME), false, false), primaryKeyClass.imprts, primaryKeyClass.node);

    }
    return null;
}
 

import org.apache.ojb.broker.metadata.FieldDescriptor; //导入依赖的package包/类
private boolean nodeContainsPkFields(TypeDeclaration dclr, Collection<FieldDescriptor> pks) {
    for (FieldDescriptor pk : pks) {
        boolean contains = false;
        for (FieldDeclaration field : ParserUtil.getFieldMembers(dclr.getMembers())) {
            if (field.getVariables().get(0).getId().getName().equals(pk.getAttributeName())) {
                contains =  true;
                break;
            }
        }

        if (!contains) {
            return false;
        }
    }

    return true;
}
 

import org.apache.ojb.broker.metadata.FieldDescriptor; //导入依赖的package包/类
private Collection<FieldDescriptor> getPrimaryKeyDescriptors(String clazz) {
    final Collection<FieldDescriptor> pks = new ArrayList<FieldDescriptor>();

    final ClassDescriptor cd = OjbUtil.findClassDescriptor(clazz, descriptorRepositories);
    if (cd != null) {
        //This causes a stackoverflow and appears to not work correctly
        //return cd.getPkFields().length > 1;
        int i = 0;
        FieldDescriptor[] fds = cd.getFieldDescriptions();
        if (fds != null) {
            for (FieldDescriptor fd : fds) {
                if (fd.isPrimaryKey()) {
                    pks.add(fd);
                }
            }
        }
    }
    return pks;
}
 

import org.apache.ojb.broker.metadata.FieldDescriptor; //导入依赖的package包/类
@Override
protected NodeData getAnnotationNodes(String enclosingClass, String fieldName, String mappedClass) {
    final FieldDescriptor fd = OjbUtil.findFieldDescriptor(mappedClass, fieldName, descriptorRepositories);

    if (fd != null) {
        final boolean autoInc = fd.isAutoIncrement();
        final String seqName = fd.getSequenceName();
        if (autoInc && StringUtils.isBlank(seqName)) {
            LOG.error(ResolverUtil.logMsgForField(enclosingClass, fieldName, mappedClass) + " field has autoincrement set to true but sequenceName is blank.");
        }

        if (!autoInc && StringUtils.isNotBlank(seqName)) {
            LOG.error(ResolverUtil.logMsgForField(enclosingClass, fieldName, mappedClass) + " field has autoincrement set to false but sequenceName is " + seqName + ".");
        }
        if (autoInc || StringUtils.isNotBlank(seqName)) {
            return new NodeData(new NormalAnnotationExpr(new NameExpr(SIMPLE_NAME), Collections.singletonList(new MemberValuePair("name", new StringLiteralExpr(upperCaseTableName ? seqName.toUpperCase() : seqName)))),
                    new ImportDeclaration(new QualifiedNameExpr(new NameExpr(PACKAGE), SIMPLE_NAME), false, false));
        }
    }
    return null;
}
 

import org.apache.ojb.broker.metadata.FieldDescriptor; //导入依赖的package包/类
private AnnotationExpr createJoinColumn(FieldDescriptor thisField, FieldDescriptor itemField) {
        final List<MemberValuePair> pairs = new ArrayList<MemberValuePair>();

        pairs.add(new MemberValuePair("name", new StringLiteralExpr(thisField.getColumnName())));
        pairs.add(new MemberValuePair("referencedColumnName", new StringLiteralExpr(itemField.getColumnName())));
        if (!isAnonymousFk(thisField)) {
            pairs.add(new MemberValuePair("insertable", new BooleanLiteralExpr(false)));
            pairs.add(new MemberValuePair("updatable", new BooleanLiteralExpr(false)));
        }

        // Per this page: https://forums.oracle.com/message/3923913
        // the nullable attribute is a hint to the DDL generation, especially on fields like this.
        // Commenting this flag out for now as it's just "noise" in the annotation definitions
//        if (!isNullableFk(thisField)) {
//            pairs.add(new MemberValuePair("nullable", new BooleanLiteralExpr(false)));
//        }
        return new NormalAnnotationExpr(new NameExpr("JoinColumn"), pairs);
    }
 

import org.apache.ojb.broker.metadata.FieldDescriptor; //导入依赖的package包/类
@Override
protected NodeData getAnnotationNodes(String enclosingClass, String fieldName, String mappedClass) {
    final FieldDescriptor fd = OjbUtil.findFieldDescriptor(mappedClass, fieldName, descriptorRepositories);

    if (fd != null) {
        final boolean autoInc = fd.isAutoIncrement();
        final String seqName = fd.getSequenceName();
        if (autoInc && StringUtils.isBlank(seqName)) {
            LOG.error(ResolverUtil.logMsgForField(enclosingClass, fieldName, mappedClass) + " field has autoincrement set to true but sequenceName is blank.");
        }

        if (!autoInc && StringUtils.isNotBlank(seqName)) {
            LOG.error(ResolverUtil.logMsgForField(enclosingClass, fieldName, mappedClass) + " field has autoincrement set to false but sequenceName is " + seqName + ".");
        }
        if (autoInc || StringUtils.isNotBlank(seqName)) {
            return new NodeData(new NormalAnnotationExpr(new NameExpr(SIMPLE_NAME), Collections.singletonList(new MemberValuePair("generator", new StringLiteralExpr(upperCaseTableName ? seqName.toUpperCase() : seqName)))),
                    new ImportDeclaration(new QualifiedNameExpr(new NameExpr(PACKAGE), SIMPLE_NAME), false, false));
        }
    }
    return null;
}
 

import org.apache.ojb.broker.metadata.FieldDescriptor; //导入依赖的package包/类
/**
 * Build the prefetch query for a M-N relationship, The query looks like the following sample :
 * <br>
 * <pre>
 *       crit = new Criteria();
 *       crit.addIn("PERSON_PROJECT.PROJECT_ID", ids);
 *       crit.addEqualToField("id","PERSON_PROJECT.PERSON_ID");
 *       qry = new QueryByMtoNCriteria(Person.class, "PERSON_PROJECT", crit, true);
 * </pre>
 *
 * @param ids Collection containing all identities of objects of the M side
 * @return the prefetch Query
 */
protected Query buildPrefetchQuery(Collection ids)
{
    CollectionDescriptor cds = getCollectionDescriptor();
    String[] indFkCols = getFksToThisClass();
    String[] indItemFkCols = getFksToItemClass();
    FieldDescriptor[] itemPkFields = getItemClassDescriptor().getPkFields();

    Criteria crit = buildPrefetchCriteria(ids, indFkCols, indItemFkCols, itemPkFields);

    // BRJ: do not use distinct:
    //
    // ORA-22901 cannot compare nested table or VARRAY or LOB attributes of an object type
    // Cause: Comparison of nested table or VARRAY or LOB attributes of an
    // object type was attempted in the absence of a MAP or ORDER method.
    // Action: Define a MAP or ORDER method for the object type.
    //
    // Without the distinct the resultset may contain duplicate rows

    return new QueryByMtoNCriteria(cds.getItemClass(), cds.getIndirectionTable(), crit, false);
}
 

import org.apache.ojb.broker.metadata.FieldDescriptor; //导入依赖的package包/类
public void testAddColumn() {
    FieldDescriptor fieldDescriptor = new FieldDescriptor(null, 1);
    fieldDescriptor.setColumnName("JUnit 1");
    this.tableDescriptor.addColumn(fieldDescriptor);
    Vector columns = this.tableDescriptor.getColumns();
    assertNotNull("The vector of columns is strangely null", columns);
    assertEquals("There was strangely not 1 element in the vector", 1, columns.size());
    this.tableDescriptor.addColumn(fieldDescriptor);
    columns = this.tableDescriptor.getColumns();
    assertEquals("There was strangely not 1 element in the vector", 1, columns.size());
    FieldDescriptor newFieldDescriptor = new FieldDescriptor(null, 2);
    newFieldDescriptor.setColumnName("JUnit 2");
    this.tableDescriptor.addColumn(newFieldDescriptor);
    columns = this.tableDescriptor.getColumns();
    assertEquals("There was strangely not 1 element in the vector", 2, columns.size());
}
 

import org.apache.ojb.broker.metadata.FieldDescriptor; //导入依赖的package包/类
/**
 * returns an Identity object representing the current resultset row
 */
protected Identity getIdentityFromResultSet() throws PersistenceBrokerException
{
    // fill primary key values from Resultset
    FieldDescriptor fld;
    FieldDescriptor[] pkFields = getQueryObject().getClassDescriptor().getPkFields();
    Object[] pkValues = new Object[pkFields.length];

    for (int i = 0; i < pkFields.length; i++)
    {
        fld = pkFields[i];
        pkValues[i] = getRow().get(fld.getColumnName());
    }

    // return identity object build up from primary keys
    return getBroker().serviceIdentity().buildIdentity(
            getQueryObject().getClassDescriptor().getClassOfObject(), getTopLevelClass(), pkValues);
}