SketchHandler

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easik.sketch.util
Class SketchHandler

java.lang.Object
  org.xml.sax.helpers.DefaultHandler
      easik.sketch.util.SketchHandler

All Implemented Interfaces:: org.xml.sax.ContentHandler, org.xml.sax.DTDHandler, org.xml.sax.EntityResolver, org.xml.sax.ErrorHandler

public class SketchHandler
extends org.xml.sax.helpers.DefaultHandler
extends org.xml.sax.helpers.DefaultHandler

The SketchHandler is the overloaded handler for reading the sketches in from XML. There is very little error checking in here to deal with bad XML. TODO: Implement schema checking

Version:: 2006-07-14 Vera Ranieri
Author:: Rob Fletcher 2005, Kevin Green 2006, Vera Ranieri 2006

Field Summary
`private boolean`	`_allConstraintsVisible` Whether all constraints are visible
`private java.util.HashMap<java.lang.String,SketchPath>`	`_allPaths` The paths of the sketch, indexed by name
`private java.util.LinkedList<Constraint>`	`_constraints` The constraints of the sketch
`private java.util.ArrayList<SketchPath>`	`_curConstraintPaths` The paths involved in the current constraint being defined
`private boolean`	`_curConstraintVisible` The visibility of the current constraint
`private int`	`_curConstraintX` The x-position of the current constraint being defined
`private int`	`_curConstraintY` The y-position of the current constraint being defined
`private java.util.HashMap<java.lang.String,EntityAttribute>`	`_curNodeAtts` Hash Map of the current node attributes, indexed by the name of the attribute
`private java.util.LinkedList<SketchEdge>`	`_curPath` The edges involved in the current path being built from the XML file
`private java.lang.String`	`_currNode` The name of the current entity or constraint
`private DataType`	`_curType` The data type of the current attribute
`private java.util.ArrayList<EntityAttribute>`	`_curUniqueKeyAtts` The EntityAttributes involved in the current Unique key being defined
`private java.lang.String`	`_curUniqueKeyName` The name of the current unique key
`private java.util.ArrayList<DataType>`	`_datatypes` The data types defined for the sketch
`private DocumentInfo`	`_docInfo` The document information for the sketch
`private java.util.HashMap<java.lang.String,org.jgrapht.graph.DefaultEdge>`	`_edges` The edges of the sketch, indexed by name
`private java.util.HashMap<java.lang.String,EntityNode>`	`_entityNodes` The entity nodes of the sketch, indexed by name
`private EntityNode`	`_newNode` The current entity node
`private boolean`	`_useDB2` Variable to store whether the respective platform is in use and defined.
`private boolean`	`_useMySQL` Variable to store whether the respective platform is in use and defined.
`private boolean`	`_useOracle` Variable to store whether the respective platform is in use and defined.
`private boolean`	`_useUserDefined` Variable to store whether the respective platform is in use and defined.
`private boolean`	`_useXML` Variable to store whether the respective platform is in use and defined.

Constructor Summary
`SketchHandler()` Default Constructor

Method Summary
`void`	`characters(char[] ch, int start, int length)`
`void`	`endElement(java.lang.String uri, java.lang.String localName, java.lang.String qName)` Overloaded method that is called any time the end of an element is found
`java.util.LinkedList<Constraint>`	`getConstraints()` Returns LinkedList of constraints
`java.util.ArrayList<DataType>`	`getDataTypes()` Returns ArrayList of data types
`DocumentInfo`	`getDocumentInfo()` Get the document information of the current sketch
`java.util.HashMap<java.lang.String,org.jgrapht.graph.DefaultEdge>`	`getEdges()` Returns HashMap of edges
`java.util.HashMap<java.lang.String,EntityNode>`	`getEntities()` Returns HashMap of entities
`java.util.HashMap<java.lang.String,SketchPath>`	`getPaths()` Returns HashMap of paths
`boolean`	`is_useDB2()`
`boolean`	`is_useMySQL()`
`boolean`	`is_useOracle()`
`boolean`	`is_useUserDefined()`
`boolean`	`is_useXML()`
`void`	`startElement(java.lang.String namespace, java.lang.String localName, java.lang.String qName, org.xml.sax.Attributes atts)` Overloaded method that is called any time the start of an element is found

Methods inherited from class org.xml.sax.helpers.DefaultHandler
`endDocument, endPrefixMapping, error, fatalError, ignorableWhitespace, notationDecl, processingInstruction, resolveEntity, setDocumentLocator, skippedEntity, startDocument, startPrefixMapping, unparsedEntityDecl, warning`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

_entityNodes

private java.util.HashMap<java.lang.String,EntityNode> _entityNodes

The entity nodes of the sketch, indexed by name

_edges

private java.util.HashMap<java.lang.String,org.jgrapht.graph.DefaultEdge> _edges

The edges of the sketch, indexed by name

_allPaths

private java.util.HashMap<java.lang.String,SketchPath> _allPaths

The paths of the sketch, indexed by name

_constraints

private java.util.LinkedList<Constraint> _constraints

The constraints of the sketch

_datatypes

private java.util.ArrayList<DataType> _datatypes

The data types defined for the sketch

_docInfo

private DocumentInfo _docInfo

The document information for the sketch