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/*
* ====================================================================
* Project: openMDX/Core, http://www.openmdx.org/
* Description: Multiplicity
* Owner: OMEX AG, Switzerland, http://www.omex.ch
* ====================================================================
*
* This software is published under the BSD license as listed below.
*
* Copyright (c) 2011, OMEX AG, Switzerland
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* * Neither the name of the openMDX team nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* ------------------
*
* This product includes or is based on software developed by other
* organizations as listed in the NOTICE file.
*/
package org.openmdx.base.mof.cci;
import java.util.EnumSet;
import java.util.Set;
import org.openmdx.kernel.exception.BasicException;
import org.openmdx.kernel.exception.Throwables;
/**
* The multiplicities
*/
public enum Multiplicity {
/**
* Cardinality 0 or 1
*/
OPTIONAL("0..1"),
/**
* Cardinality 1
*/
SINGLE_VALUE("1..1"),
/**
* An unbounded list
*/
LIST("list"),
/**
* An unbounded set
*/
SET("set"),
/**
* An unbounded sparse array
*/
SPARSEARRAY("sparsearray"),
/**
* An unbounded map
*/
MAP("map"),
/**
* A stream
*/
STREAM("stream");
/**
* Constructor
*
* @param value
*/
private Multiplicity(
String value
) {
this.code = value;
}
/**
* The external representation
*/
private final String code;
/**
* This legacy declaration is treated the same way as {@code LIST}
*/
public static String UNBOUNDED = "0..n";
private static final Set SINGLE_VALUED = EnumSet.of(Multiplicity.OPTIONAL, Multiplicity.SINGLE_VALUE);
private static final Set MULTI_VALUED = EnumSet.of(
Multiplicity.LIST, Multiplicity.SET, Multiplicity.SPARSEARRAY, Multiplicity.MAP
);
private static final Set COLLECTIONS = EnumSet.of(
Multiplicity.LIST, Multiplicity.SET, Multiplicity.SPARSEARRAY
);
/**
* Parse the multiplicity
*
* @param multiplicity
* the value's String representation
*
* @return the corresponding enumeration value
*
* @throws NullPointerException
* if value is null
* @throws IllegalArgumentException if the value does not match any of Multiplicity's String representations
*/
public static Multiplicity parse(
String multiplicity
) {
for (Multiplicity candidate : values()) {
if (candidate.code.equalsIgnoreCase(multiplicity)) {
return candidate;
}
}
if (UNBOUNDED.equalsIgnoreCase(multiplicity)) {
return LIST;
}
throw Throwables.initCause(
new IllegalArgumentException("Unknown multiplicity"),
null,
BasicException.Code.DEFAULT_DOMAIN,
BasicException.Code.BAD_PARAMETER,
new BasicException.Parameter("value", multiplicity)
);
}
/**
* Tells whether the Multiplicity is one of
*
*
{@link #OPTIONAL}
*
{@link #SINGLE_VALUE}
*
*
* @return true if the multiplicity is single-valued
*/
public boolean isSingleValued() {
return SINGLE_VALUED.contains(this);
}
/**
* Tells whether the Multiplicity is one of
*
*
{@link #LIST}
*
{@link #SET}
*
{@link #SPARSEARRAY}
*
{@link #MAP}
*
*
* @return true if the multiplicity is multi-valued
*/
public boolean isMultiValued() {
return MULTI_VALUED.contains(this);
}
/**
* Tells whether the Multiplicity is one of
*
*
{@link #LIST}
*
{@link #SET}
*
{@link #SPARSEARRAY}
*
*
* @return true if the multiplicity is multi-valued
*/
public boolean isCollection() {
return COLLECTIONS.contains(this);
}
/**
* Tells whether the Multiplicity is
*
*
{@link #STREAM}
*
*
* @return true if the multiplicity is stream-valued
*/
public boolean isStreamValued() {
return this == Multiplicity.STREAM;
}
/**
* Retrieve the multiplicity's representation
*
* @return the multiplicity's representation
*/
public String code() {
return this.code;
}
/*
* (non-Javadoc)
*
* @see java.lang.Enum#toString()
*/
@Override
public String toString() {
return code();
}
}
