- /*
- * @(#)TabularData.java 3.19 04/02/10
- *
- * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
- * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
- */
-
-
- package javax.management.openmbean;
-
-
- // java import
- //
- import java.io.Serializable;
- import java.util.Map;
- import java.util.Set;
- import java.util.Collection;
-
- // jmx import
- //
-
-
- /**
- * The <tt>TabularData</tt> interface specifies the behavior of a specific type of complex <i>open data</i> objects
- * which represent <i>tabular data</i> structures.
- *
- * @version 3.19 04/02/10
- * @author Sun Microsystems, Inc.
- *
- * @since 1.5
- * @since.unbundled JMX 1.1
- */
- public interface TabularData /*extends Map*/ {
-
-
- /* *** TabularData specific information methods *** */
-
-
- /**
- * Returns the <i>tabular type</i> describing this
- * <tt>TabularData</tt> instance.
- *
- * @return the tabular type.
- */
- public TabularType getTabularType();
-
-
- /**
- * Calculates the index that would be used in this <tt>TabularData</tt> instance to refer to the specified
- * composite data <var>value</var> parameter if it were added to this instance.
- * This method checks for the type validity of the specified <var>value</var>,
- * but does not check if the calculated index is already used to refer to a value in this <tt>TabularData</tt> instance.
- *
- * @param value the composite data value whose index in this
- * <tt>TabularData</tt> instance is to be calculated;
- * must be of the same composite type as this instance's row type;
- * must not be null.
- *
- * @return the index that the specified <var>value</var> would have in this <tt>TabularData</tt> instance.
- *
- * @throws NullPointerException if <var>value</var> is <tt>null</tt>
- *
- * @throws InvalidOpenTypeException if <var>value</var> does not conform to this <tt>TabularData</tt> instance's
- * row type definition.
- */
- public Object[] calculateIndex(CompositeData value) ;
-
-
-
-
- /* *** Content information query methods *** */
-
- /**
- * Returns the number of <tt>CompositeData</tt> values (ie the
- * number of rows) contained in this <tt>TabularData</tt>
- * instance.
- *
- * @return the number of values contained.
- */
- public int size() ;
-
- /**
- * Returns <tt>true</tt> if the number of <tt>CompositeData</tt>
- * values (ie the number of rows) contained in this
- * <tt>TabularData</tt> instance is zero.
- *
- * @return true if this <tt>TabularData</tt> is empty.
- */
- public boolean isEmpty() ;
-
- /**
- * Returns <tt>true</tt> if and only if this <tt>TabularData</tt> instance contains a <tt>CompositeData</tt> value
- * (ie a row) whose index is the specified <var>key</var>. If <var>key</var> is <tt>null</tt> or does not conform to
- * this <tt>TabularData</tt> instance's <tt>TabularType</tt> definition, this method simply returns <tt>false</tt>.
- *
- * @param key the index value whose presence in this <tt>TabularData</tt> instance is to be tested.
- *
- * @return <tt>true</tt> if this <tt>TabularData</tt> indexes a row value with the specified key.
- */
- public boolean containsKey(Object[] key) ;
-
- /**
- * Returns <tt>true</tt> if and only if this <tt>TabularData</tt> instance contains the specified
- * <tt>CompositeData</tt> value. If <var>value</var> is <tt>null</tt> or does not conform to
- * this <tt>TabularData</tt> instance's row type definition, this method simply returns <tt>false</tt>.
- *
- * @param value the row value whose presence in this <tt>TabularData</tt> instance is to be tested.
- *
- * @return <tt>true</tt> if this <tt>TabularData</tt> instance contains the specified row value.
- */
- public boolean containsValue(CompositeData value) ;
-
- /**
- * Returns the <tt>CompositeData</tt> value whose index is
- * <var>key</var>, or <tt>null</tt> if there is no value mapping
- * to <var>key</var>, in this <tt>TabularData</tt> instance.
- *
- * @param key the key of the row to return.
- *
- * @return the value corresponding to <var>key</var>.
- *
- * @throws NullPointerException if the <var>key</var> is
- * <tt>null</tt>
- * @throws InvalidKeyException if the <var>key</var> does not
- * conform to this <tt>TabularData</tt> instance's *
- * <tt>TabularType</tt> definition
- */
- public CompositeData get(Object[] key) ;
-
-
-
-
- /* *** Content modification operations (one element at a time) *** */
-
-
- /**
- * Adds <var>value</var> to this <tt>TabularData</tt> instance.
- * The composite type of <var>value</var> must be the same as this
- * instance's row type (ie the composite type returned by
- * <tt>this.getTabularType().{@link TabularType#getRowType
- * getRowType()}</tt>), and there must not already be an existing
- * value in this <tt>TabularData</tt> instance whose index is the
- * same as the one calculated for the <var>value</var> to be
- * added. The index for <var>value</var> is calculated according
- * to this <tt>TabularData</tt> instance's <tt>TabularType</tt>
- * definition (see <tt>TabularType.{@link
- * TabularType#getIndexNames getIndexNames()}</tt>).
- *
- * @param value the composite data value to be added as a new row to this <tt>TabularData</tt> instance;
- * must be of the same composite type as this instance's row type;
- * must not be null.
- *
- * @throws NullPointerException if <var>value</var> is <tt>null</tt>
- * @throws InvalidOpenTypeException if <var>value</var> does not conform to this <tt>TabularData</tt> instance's
- * row type definition.
- * @throws KeyAlreadyExistsException if the index for <var>value</var>, calculated according to
- * this <tt>TabularData</tt> instance's <tt>TabularType</tt> definition
- * already maps to an existing value in the underlying HashMap.
- */
- public void put(CompositeData value) ;
-
- /**
- * Removes the <tt>CompositeData</tt> value whose index is <var>key</var> from this <tt>TabularData</tt> instance,
- * and returns the removed value, or returns <tt>null</tt> if there is no value whose index is <var>key</var>.
- *
- * @param key the index of the value to get in this <tt>TabularData</tt> instance;
- * must be valid with this <tt>TabularData</tt> instance's row type definition;
- * must not be null.
- *
- * @return previous value associated with specified key, or <tt>null</tt>
- * if there was no mapping for key.
- *
- * @throws NullPointerException if the <var>key</var> is <tt>null</tt>
- * @throws InvalidKeyException if the <var>key</var> does not conform to this <tt>TabularData</tt> instance's
- * <tt>TabularType</tt> definition
- */
- public CompositeData remove(Object[] key) ;
-
-
-
-
- /* *** Content modification bulk operations *** */
-
-
- /**
- * Add all the elements in <var>values</var> to this <tt>TabularData</tt> instance.
- * If any element in <var>values</var> does not satisfy the constraints defined in {@link #put(CompositeData) <tt>put</tt>},
- * or if any two elements in <var>values</var> have the same index calculated according to this <tt>TabularData</tt>
- * instance's <tt>TabularType</tt> definition, then an exception describing the failure is thrown
- * and no element of <var>values</var> is added, thus leaving this <tt>TabularData</tt> instance unchanged.
- *
- * @param values the array of composite data values to be added as new rows to this <tt>TabularData</tt> instance;
- * if <var>values</var> is <tt>null</tt> or empty, this method returns without doing anything.
- *
- * @throws NullPointerException if an element of <var>values</var> is <tt>null</tt>
- * @throws InvalidOpenTypeException if an element of <var>values</var> does not conform to
- * this <tt>TabularData</tt> instance's row type definition
- * @throws KeyAlreadyExistsException if the index for an element of <var>values</var>, calculated according to
- * this <tt>TabularData</tt> instance's <tt>TabularType</tt> definition
- * already maps to an existing value in this instance,
- * or two elements of <var>values</var> have the same index.
- */
- public void putAll(CompositeData[] values) ;
-
- /**
- * Removes all <tt>CompositeData</tt> values (ie rows) from this <tt>TabularData</tt> instance.
- */
- public void clear();
-
-
-
-
- /* *** Collection views of the keys and values *** */
-
-
- /**
- * Returns a set view of the keys (ie the index values) of the <tt>CompositeData</tt> values (ie the rows)
- * contained in this <tt>TabularData</tt> instance. The returned Set can then be used to iterate over the keys.
- *
- * @return a set view of the index values used in this <tt>TabularData</tt> instance.
- */
- public Set keySet();
-
- /**
- * Returns a collection view of the <tt>CompositeData</tt> values (ie the rows)
- * contained in this <tt>TabularData</tt> instance.
- * The returned collection can then be used to iterate over the values.
- *
- * @return a collection view of the rows contained in this <tt>TabularData</tt> instance.
- */
- public Collection values();
-
-
-
-
- /* *** Commodity methods from java.lang.Object *** */
-
-
- /**
- * Compares the specified <var>obj</var> parameter with this <code>TabularData</code> instance for equality.
- * <p>
- * Returns <tt>true</tt> if and only if all of the following statements are true:
- * <ul>
- * <li><var>obj</var> is non null,</li>
- * <li><var>obj</var> also implements the <code>TabularData</code> interface,</li>
- * <li>their row types are equal</li>
- * <li>their contents (ie index to value mappings) are equal</li>
- * </ul>
- * This ensures that this <tt>equals</tt> method works properly for <var>obj</var> parameters which are
- * different implementations of the <code>TabularData</code> interface.
- * <br>
- * @param obj the object to be compared for equality with this <code>TabularData</code> instance;
- *
- * @return <code>true</code> if the specified object is equal to this <code>TabularData</code> instance.
- */
- public boolean equals(Object obj);
-
- /**
- * Returns the hash code value for this <code>TabularData</code> instance.
- * <p>
- * The hash code of a <code>TabularData</code> instance is the sum of the hash codes
- * of all elements of information used in <code>equals</code> comparisons
- * (ie: its <i>tabular type</i> and its content, where the content is defined as all the index to value mappings).
- * <p>
- * This ensures that <code> t1.equals(t2) </code> implies that <code> t1.hashCode()==t2.hashCode() </code>
- * for any two <code>TabularDataSupport</code> instances <code>t1</code> and <code>t2</code>,
- * as required by the general contract of the method
- * {@link Object#hashCode() Object.hashCode()}.
- *
- * @return the hash code value for this <code>TabularDataSupport</code> instance
- */
- public int hashCode();
-
- /**
- * Returns a string representation of this <code>TabularData</code> instance.
- * <p>
- * The string representation consists of the name of the implementing class,
- * and the tabular type of this instance.
- *
- * @return a string representation of this <code>TabularData</code> instance
- */
- public String toString();
-
- }