hydrograph.ui.expression.editor.evaluate.FieldNameAndValueCellModifier.java Source code

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Here is the source code for hydrograph.ui.expression.editor.evaluate.FieldNameAndValueCellModifier.java

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/*******************************************************************************
 * Copyright 2017 Capital One Services, LLC and Bitwise, Inc.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *******************************************************************************/

package hydrograph.ui.expression.editor.evaluate;

import hydrograph.ui.common.util.ParameterUtil;

import org.apache.commons.lang.StringUtils;
import org.eclipse.jface.viewers.ICellModifier;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.swt.widgets.Item;

/**
 * The Class FieldNameAndValueCellModifier.
 * 
 * @author Bitwise
 */
public class FieldNameAndValueCellModifier implements ICellModifier {
    private Viewer viewer;

    /**
     * Instantiates a new run time property cell modifier.
     * 
     * @param viewer
     *            the viewer
     */
    public FieldNameAndValueCellModifier(Viewer viewer) {
        this.viewer = viewer;
    }

    /**
     * Returns whether the property can be modified
     * 
     * @param element
     *            the element
     * @param property
     *            the property
     * @return boolean
     */
    public boolean canModify(Object element, String property) {
        // Allow editing of all values
        if (StringUtils.equals(EvalDialogFieldTable.FIELD_VALUE_PROPERTY, property))
            return true;
        else
            return false;
    }

    /**
     * Returns the value for the property
     * 
     * @param element
     *            the element
     * @param property
     *            the property
     * @return Object
     */
    public Object getValue(Object element, String property) {
        FieldNameAndValue fieldNameAndValue = (FieldNameAndValue) element;

        if (EvalDialogFieldTable.FIELD_NAME_PROPERTY.equals(property)) {
            return fieldNameAndValue.getFieldName();

        } else if (EvalDialogFieldTable.FIELD_DATATYPE_PROPERTY.equals(property)) {
            return fieldNameAndValue.getFieldName();

        } else if (EvalDialogFieldTable.FIELD_VALUE_PROPERTY.equals(property))
            return fieldNameAndValue.getFieldValue();
        else
            return null;
    }

    /**
     * Modifies the element
     * 
     * @param element
     *            the element
     * @param property
     *            the property
     * @param value
     *            the value
     */
    public void modify(Object element, String property, Object value) {
        if (element instanceof Item)
            element = ((Item) element).getData();

        FieldNameAndValue fieldNameAndValue = (FieldNameAndValue) element;

        if (StringUtils.equals(EvalDialogFieldTable.FIELD_NAME_PROPERTY, property)) {
            fieldNameAndValue.setFieldName((String) value);
        } else if (StringUtils.equals(EvalDialogFieldTable.FIELD_VALUE_PROPERTY, property)) {
            fieldNameAndValue.setFieldValue((String) value);
        }

        viewer.refresh();
    }

}