it.unimi.di.mg4j.query.nodes
Class Composite

java.lang.Object
  it.unimi.di.mg4j.query.nodes.Composite

All Implemented Interfaces:

Query, Serializable

Direct Known Subclasses:

And, Consecutive, MultiTerm, Or, OrderedAnd

public abstract class Composite
extends Object
implements Query

A abstract composite node containing an array of component queries.

Author:

Sebastiano Vigna

See Also:

Serialized Form

Field Summary

Query[]

query The component queries.

Constructor Summary

Composite(Query... query)

Method Summary

Query[]	components() Returns a copy of the vector of the component queries (the queries themselves are not copied).
protected String	toString(String start, String end, String sep) Returns a string representation of this node, given a start string, and end string and a separator.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface it.unimi.di.mg4j.query.nodes.Query

accept

Field Detail

query

public final Query[] query

The component queries. Although public, this field should not be changed after creation.

Constructor Detail

Composite

public Composite(Query... query)

Method Detail

components

public Query[] components()

Returns a copy of the vector of the component queries (the queries themselves are not copied).

Returns:

a copy of the vector of the component queries.

toString

protected String toString(String start,
                          String end,
                          String sep)

Returns a string representation of this node, given a start string, and end string and a separator. Instantiating subclasses can easily write their Object.toString() methods by supplying these three strings and calling this method.

Parameters:

start - the string to be used at the start of the string representation.

end - the string to be used at the end of the string representation.

sep - the separator between component queries.

Returns:

a string representation for this composite query node.