RegionImpl.java

/*******************************************************************************
 * Copyright (c) 2012-2017 Codenvy, S.A.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *   Codenvy, S.A. - initial API and implementation
 *******************************************************************************/
package org.eclipse.che.ide.api.editor.text;

/** The default implementation of the {@link Region} interface. */
public class RegionImpl implements Region {

    /** The region offset */
    private int fOffset;

    /** The region length */
    private int fLength;

    /**
     * Create a new region.
     *
     * @param offset
     *         the offset of the region
     * @param length
     *         the length of the region
     */
    public RegionImpl(int offset, int length) {
        fOffset = offset;
        fLength = length;
    }

    /* @see org.eclipse.jface.text.IRegion#getLength() */
    @Override
    public int getLength() {
        return fLength;
    }

    /* @see org.eclipse.jface.text.IRegion#getOffset() */
    @Override
    public int getOffset() {
        return fOffset;
    }

    /* @see java.lang.Object#isEquals(java.lang.Object) */
    @Override
    public boolean equals(Object o) {
        if (o instanceof Region) {
            Region r = (Region)o;
            return r.getOffset() == fOffset && r.getLength() == fLength;
        }
        return false;
    }

    /* @see java.lang.Object#hashCode() */
    @Override
    public int hashCode() {
        return (fOffset << 24) | (fLength << 16);
    }

    /* @see java.lang.Object#toString() */
    @Override
    public String toString() {
        return "offset: " + fOffset + ", length: " + fLength; //$NON-NLS-1$ //$NON-NLS-2$;
    }
}