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This is the master POM file for Sun's Implementation of the JSF 1.2 Specification.

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/*
 * $Id: ArrayDataModel.java,v 1.20.4.1 2008/04/20 20:48:29 rlubke Exp $
 */

/*
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 * and Distribution License("CDDL") (collectively, the "License").  You
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 * or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
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package javax.faces.model;


import javax.faces.FacesException;


/**
 * 

ArrayDataModel is a convenience implementation of * {@link DataModel} that wraps an array of Java objects.

*/ public class ArrayDataModel extends DataModel { // ------------------------------------------------------------ Constructors /** *

Construct a new {@link ArrayDataModel} with no specified * wrapped data.

*/ public ArrayDataModel() { this(null); } /** *

Construct a new {@link ArrayDataModel} wrapping the specified * array.

* * @param array Array to be wrapped (if any) */ public ArrayDataModel(Object array[]) { super(); setWrappedData(array); } // ------------------------------------------------------ Instance Variables // The array we are wrapping private Object array[]; // The current row index (zero relative) private int index = -1; // -------------------------------------------------------------- Properties /** *

Return true if there is wrappedData * available, and the current value of rowIndex is greater * than or equal to zero, and less than the length of the array. Otherwise, * return false.

* * @throws FacesException if an error occurs getting the row availability */ public boolean isRowAvailable() { if (array == null) { return (false); } else if ((index >= 0) && (index < array.length)) { return (true); } else { return (false); } } /** *

If there is wrappedData available, return the * length of the array. If no wrappedData is available, * return -1.

* * @throws FacesException if an error occurs getting the row count */ public int getRowCount() { if (array == null) { return (-1); } return (array.length); } /** *

If row data is available, return the array element at the index * specified by rowIndex. If no wrapped data is available, * return null.

* * @throws FacesException if an error occurs getting the row data * @throws IllegalArgumentException if now row data is available * at the currently specified row index */ public Object getRowData() { if (array == null) { return (null); } else if (!isRowAvailable()) { throw new NoRowAvailableException(); } else { return (array[index]); } } /** * @throws FacesException {@inheritDoc} */ public int getRowIndex() { return (index); } /** * @throws FacesException {@inheritDoc} * @throws IllegalArgumentException {@inheritDoc} */ public void setRowIndex(int rowIndex) { if (rowIndex < -1) { throw new IllegalArgumentException(); } int old = index; index = rowIndex; if (array == null) { return; } DataModelListener [] listeners = getDataModelListeners(); if ((old != index) && (listeners != null)) { Object rowData = null; if (isRowAvailable()) { rowData = getRowData(); } DataModelEvent event = new DataModelEvent(this, index, rowData); int n = listeners.length; for (int i = 0; i < n; i++) { if (null != listeners[i]) { listeners[i].rowSelected(event); } } } } public Object getWrappedData() { return (this.array); } /** * @throws ClassCastException if data is * non-null and is not an array of Java objects. */ public void setWrappedData(Object data) { if (data == null) { array = null; setRowIndex(-1); } else { array = (Object[]) data; index = -1; setRowIndex(0); } } }




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