001: /*
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003: *
004: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
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006: * The contents of this file are subject to the terms of either the GNU
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008: * Development and Distribution License("CDDL") (collectively, the
009: * "License"). You may not use this file except in compliance with the
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026: * The Original Software is NetBeans. The Initial Developer of the Original
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040: */
041:
042: package com.sun.rave.faces.data;
043:
044: import javax.faces.component.UIInput;
045: import javax.faces.component.ValueHolder;
046: import javax.faces.event.AbortProcessingException;
047: import javax.faces.event.PhaseId;
048: import javax.faces.event.ValueChangeEvent;
049: import javax.faces.event.ValueChangeListener;
050: import javax.sql.RowSet;
051: import javax.sql.RowSetEvent;
052: import javax.sql.RowSetListener;
053:
054: public class DataValueBinder implements RowSetColumnBindable,
055: RowSetListener, ValueChangeListener {
056:
057: protected RowSet rowSet;
058:
059: public void setBoundRowSet(RowSet rowSet) {
060: dataUnbind();
061: this .rowSet = rowSet;
062: dataBind();
063: }
064:
065: public RowSet getBoundRowSet() {
066: return rowSet;
067: }
068:
069: protected ColumnBinding boundColumn;
070:
071: public void setBoundColumn(ColumnBinding column) {
072: dataUnbind();
073: this .boundColumn = column;
074: dataBind();
075: }
076:
077: public ColumnBinding getBoundColumn() {
078: return boundColumn;
079: }
080:
081: protected ValueHolder valueHolder;
082:
083: public void setValueHolder(ValueHolder valueHolder) {
084: dataUnbind();
085: this .valueHolder = valueHolder;
086: dataBind();
087: }
088:
089: public ValueHolder getValueHolder() {
090: return valueHolder;
091: }
092:
093: protected void dataBind() {
094: if (rowSet != null && boundColumn != null
095: && valueHolder != null) {
096: rowSet.addRowSetListener(this );
097: }
098: if (valueHolder instanceof UIInput) {
099: ((UIInput) valueHolder).addValueChangeListener(this );
100: }
101: }
102:
103: protected void dataUnbind() {
104: if (rowSet != null && boundColumn != null) {
105: rowSet.removeRowSetListener(this );
106: }
107: if (valueHolder instanceof UIInput) {
108: ((UIInput) valueHolder).removeValueChangeListener(this );
109: }
110: }
111:
112: // RowSetListener methods
113: public void rowSetChanged(RowSetEvent event) {
114: cursorMoved(event);
115: }
116:
117: public void rowChanged(RowSetEvent event) {
118: cursorMoved(event);
119: }
120:
121: public void cursorMoved(RowSetEvent event) {
122: if (rowSet != null && boundColumn != null
123: && valueHolder != null) {
124: try {
125: valueHolder.setValue(rowSet.getObject(boundColumn
126: .getColumnName()));
127: } catch (Exception x) {
128: // do nothing for now...
129: }
130: }
131: }
132:
133: public PhaseId getPhaseId() {
134: return PhaseId.INVOKE_APPLICATION;
135: }
136:
137: public void processValueChange(ValueChangeEvent event)
138: throws AbortProcessingException {
139: if (rowSet != null && boundColumn != null
140: && valueHolder != null) {
141: try {
142: rowSet.updateObject(boundColumn.getColumnName(),
143: valueHolder.getValue());
144: } catch (Exception x) {
145: // do nothing for now...
146: }
147: }
148: }
149: }
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