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[phpeclipse.git] / archive / net.sourceforge.phpeclipse.quantum.sql / src / com / quantum / util / StringMatrix.java

diff --git a/archive/net.sourceforge.phpeclipse.quantum.sql/src/com/quantum/util/StringMatrix.java b/archive/net.sourceforge.phpeclipse.quantum.sql/src/com/quantum/util/StringMatrix.java
index f87f14d..85c6b92 100644 (file)
--- a/archive/net.sourceforge.phpeclipse.quantum.sql/src/com/quantum/util/StringMatrix.java
+++ b/archive/net.sourceforge.phpeclipse.quantum.sql/src/com/quantum/util/StringMatrix.java
@@ -9,8 +9,9 @@ import java.util.Vector;
 /**
  * @author jparrai
  * Generic class to hold a Matrix of Strings, that is a Vector of Vectors of Strings.
- * The first Vector "line" is supposed to have headers to the values of the rest.
+ * The first StringMatrix "line" is supposed to have headers to the values of the rest.
  * Those headers will always be case insensitive
+ * Rows start at 0
  */
 public class StringMatrix {
        private final int DEFAULT_COLUMNS = 10;
@@ -44,7 +45,7 @@ public class StringMatrix {
         */
        public void addMatrixHeader(String header[]){
                        for (int i = 0; i < header.length; i++) {       
-                               String element = (String) header[i];
+                               String element = header[i];
                                this.header.add(element);                       
                        }
        }
@@ -94,19 +95,33 @@ public class StringMatrix {
                matrix.clear();
        }
        /**
-       * Adds a String to the row indicated, to the column that matches the key 
+       * Adds a String to the row indicated, to the column that matches the key
+       * The matrix will grow to acomodate the indexes, so be careful 
        * @param value : The string to be added
-       * @param row : The row to 
+       * @param row : The row to update 
        */
        public void addAt(String key, String value, int row) {
                grow(row);
                Vector rowVector = (Vector) matrix.get(row);
                int ind = header.indexOf(key);
                if (ind < 0) return;
-               if (rowVector.size() < ind+1) rowVector.setSize(ind);
+               if (rowVector.size() <= ind) rowVector.setSize(ind);
                rowVector.add(ind, value);
        }
        /**
+        * Adds a String in the location specified.
+        * The matrix will grow to acomodate the indexes, so be careful 
+        * @param column        Column selected
+        * @param row           row selected
+        * @param value         value to add
+        */
+       public void addAt(int column, int row, String value) {
+               grow(row);
+               Vector rowVector = (Vector) matrix.get(row);
+               if (column >= rowVector.size()) rowVector.setSize(column);
+               rowVector.add(column, value);
+       }
+       /**
         * Adds a whole vector to the end of the row indicated
         * @param value : The vector to be added
         * @param row : The row to 
@@ -233,11 +248,13 @@ public class StringMatrix {
         * @param row : 0-index column
         * @return
         */
-       private String get(int col, int row){
+       public String get(int col, int row){
                if (col < 0 || row < 0) return null; 
                Vector rowVector = (Vector) matrix.get(row);
                if (rowVector ==  null) return null;
-               return (String) rowVector.get(col);
+               if (col < rowVector.size())
+                       return (String) rowVector.get(col);
+               else return null;
        }
        
        // Generic interfaces
@@ -275,14 +292,28 @@ public class StringMatrix {
        public int size() {
                return matrix.size();
        }
+       /**
+        * @return The number of columns of the StringMatrix
+        */
        public int getNumColumns() {
                return header.size();
        }
+       /**
+        * @param i
+        * @return The name of the header column in the "i" position. Null if no such position.
+        */
        public String getHeaderColumn(int i){
-               return (String) header.get(i);
+               if (i < header.size())
+                       return (String) header.get(i);
+               return null;
        }
+       /**
+        * Deletes the row number i
+        * @param i
+        */
        public void deleteRow(int i){
-               matrix.remove(i);
+               if (i < matrix.size())
+                       matrix.remove(i);
        }