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--- magik-demo:developer:class:core:relation [2013/07/19 15:50]
alex [Class Attributes]
+++ magik-demo:developer:class:core:relation [2017/07/06 15:24] (current)
@@ Line 16: / Line 16: @@
 </code>
-===== Class Constructor =====
+===== Class Constructors =====
 ==== Relation ====
 <code java>
@@ Line 24: / Line 24: @@
                  java.lang.String description)
 </code>
+Constructor for relation with well known arity. Attributes are load inside the function by calling ''[[#readattributesnamesindescription|readAttributesNamesInDescritpion]]''\\
+//Called by://
+  * it.unibz.inf.magik.additional.InvolvedVariablesDetector
+  * it.unibz.inf.magik.db.DatabaseConnector
+  * it.unibz.inf.magik.test.CycleDetectionTest
+  * it.unibz.inf.magik.test.TestFK
+  * it.unibz.inf.magik.test.TestFK2
+  * it.unibz.inf.magik.test.TestHardCaseFDCandFK
+  * it.unibz.inf.magik.test.TestTCQCReasonerBlackWhiteExample
+  * it.unibz.inf.magik.test.TestTCQCReasonerPlainCompanyEx
+  * it.unibz.inf.magik.test.TestValQueryProblem
+  * it.unibz.inf.magik.test.TestTCQCReasonerUnderFDC
+  * it.unibz.inf.magik.test.TestQueryClass
+  * it.unibz.inf.magik.test.TestQueryGeneralization
+  * it.unibz.inf.magik.test.TestQueryToSQL
+  * it.unibz.inf.magik.test.TestTCQCReasonerFKandFD
+  * it.unibz.inf.magik.test.TestTCQCReasonerPlainSchoolEx
+  * it.unibz.inf.magik.test.TestTCQCReasonerTCSuggestions
+  * it.unibz.inf.magik.test.TestPrimaryVioation
+**Parameters:**
+  * name - name of the relation
+  * arity - arity of the relation
+  * primaryKey - determined with first place in the relation
+  * description - string of the attributes of the relation, separated by comma
+----
+==== Relation ====
+<code java>
+public Relation (java.lang.String name,
+                 int primaryKey,
+                 java.lang.String description)
+</code>
+Constructor for relation without knowning arity. Attributes are load inside the function by calling ''[[#readattributesnamesindescription|readAttributesNamesInDescritpion]]''\\
+//Called by://
+  * it.unibz.inf.magik.web.SessionControl
+  * it.unibz.inf.magik.test.TestSimpleComparison
+**Parameters:**
+  * name - name of the relation
+  * primaryKey - determined with first place in the relation
+  * description - string of the attributes of the relation, separated by comma
+===== Class Methods =====
+==== readAttributesNamesInDescription ====
+<code java>
+public static java.util.ArrayList<java.lang.String> readAttributesNamesInDescription(java.lang.String description)
+</code>
+Parse the attribute name of a relation from the description field
+**Parameters:**
+  * description - string with attributes separated by comma
+**Returns:**
+  * list of the attribute parsed
+----
+==== getAttributePosition ====
+<code java>
+public int getAttributePosition (java.lang.String attributeName)
+</code>
+Get attribute position in the relation
+**Parameters:**
+  * attributeName - attribute to search
+**Returns:**
+  * position in the relation, //-1// if not in the relation
+----
+==== getters and setters methods ====
+<code java>
+public java.util.ArrayList<java.lang.String> getAttributeNames()
+public void setAttributeNames(java.util.ArrayList<java.lang.String> attributeNames)
+public java.lang.String getName()
+public void setName(java.lang.String name)
+public int getArity()
+public void setArity(int arity)
+public int getPrimaryKey()
+public void setPrimaryKey(int primaryKey)
+public long getId()
+public void setId(long id)
+</code>
+[[magik-demo:developer:class:core:relation|Back to Top]] | [[magik-demo:start|Back to Home Page]]

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