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## org.opencyc.inferencesupport
Class BindingSet

    java.lang.Object
      |
      +--org.opencyc.inferencesupport.BindingSet

All Implemented Interfaces:
  java.lang.Comparable

public class BindingSet
extends java.lang.Object
implements java.lang.Comparable

`BindingSet` object to contain bindings for query literals.

Author:
  Stephen L. Reed

  Copyright 2001 Cycorp, Inc., license is open source GNU LGPL.

  the license

  www.opencyc.org

  OpenCyc at SourceForge

  THIS SOFTWARE AND KNOWLEDGE BASE CONTENT ARE PROVIDED ``AS IS'' AND ANY EXPRESSED 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 OPENCYC ORGANIZATION OR ITS 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 AND KNOWLEDGE BASE CONTENT, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Field Summary
`protected java.util.ArrayList` | `bindingValues` The list of binding value lists associated with each variable, which is not used for cartesian product joins.
`protected java.util.ArrayList` | `cartesianProductBindingSets` The set of binding sets comprising a cartesian product join, which is not actually instantiatiated to save space.
`protected CycFort` | `mt` The microtheory in which the variable bindings were obtained
`protected QueryLiteral` | `queryLiteral` The literal for which these bindings were obtained.

Constructor Summary
`BindingSet(QueryLiteral queryLiteral, CycFort mt)` Constructs a new `BindingSet` object with the given `QueryLiteral`.

Method Summary
`void` | `add(CycList bindingValueList)` Adds a binding value list to the binding set.
`void` | `addAll(java.util.ArrayList bindingValueLists)` Adds a list of binding value lists to the binding set.
`int` | `compareTo(java.lang.Object object)` Compares this object with the specified object for order.
`void` | `displayBindingSet()` Displays the binding set.
`boolean` | `equals(java.lang.Object object)` Returns `true` if the object equals this object.
`java.util.ArrayList` | `getBindingValues()` Gets the binding values for this binding set.
`java.util.ArrayList` | `getCartesianProductBindingSets()` Returns the set of binding sets comprising a cartesian product join, which is not actually instantiatiated to save space.
`CycFort` | `getMt()` Returns the microtheory in which the variable bindings were obtained.
`int` | `getNbrInstances()` Gets the number of instances of this literal in the KB.
`QueryLiteral` | `getQueryLiteral()` Returns the literal for this binding set.
`java.util.ArrayList` | `getVariables()` Returns the variables in this binding set.
`boolean` | `isBindingPostponed()` Returns `true` iff the asking of the binding values has been postponed (due to the estimated number of KB instances exceeding a user-controlled threshold).
`boolean` | `isCartesianProduct()` Returns `true` iff the binding set has the form of an uninstantiated cartesian product.
`boolean` | `isUnary()` Returns `true` iff this is a formula having one variable.
`void` | `setBindingValues(java.util.ArrayList bindingValues)` Sets the binding values for this binding set.
`void` | `setCartesianProductBindingSets(java.util.ArrayList cartesianProductBindingSets)` Sets the set of binding sets comprising a cartesian product join.
`void` | `setNbrInstances(int nbrFormulaInstances)` Sets the number of instances of this literal in the KB.
`int` | `size()` Returns the size of the binding set for this literal.
`java.lang.String` | `toString()` Returns a `String` representation of the `BindingSet` object.

Methods inherited from class java.lang.Object
`clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Field Detail

### queryLiteral

    protected QueryLiteral queryLiteral

  The literal for which these bindings were obtained.

### mt

    protected CycFort mt

  The microtheory in which the variable bindings were obtained

### cartesianProductBindingSets

    protected java.util.ArrayList cartesianProductBindingSets

  The set of binding sets comprising a cartesian product join, which is not actually instantiatiated to save space.

### bindingValues

    protected java.util.ArrayList bindingValues

  The list of binding value lists associated with each variable, which is not used for cartesian product joins.

Constructor Detail

### BindingSet

    public BindingSet(QueryLiteral queryLiteral,
                      CycFort mt)
               throws java.io.IOException,
                      CycApiException

  Constructs a new `BindingSet` object with the given `QueryLiteral`.
  Parameters:
    `queryLiteral` - the literal for which bindings are obtained
    `mt` - the microtheory in which the variable bindings are obtained

Method Detail

### getQueryLiteral

    public QueryLiteral getQueryLiteral()

  Returns the literal for this binding set.
  Returns:
    the `QueryLiteral` for this binding set

### getBindingValues

    public java.util.ArrayList getBindingValues()

  Gets the binding values for this binding set.
  Returns:
    the list of binding value lists associated with each variable,

### setBindingValues

    public void setBindingValues(java.util.ArrayList bindingValues)

  Sets the binding values for this binding set.
  Parameters:
    `bindingValues` - the list of binding value lists associated with each variable,

### add

    public void add(CycList bindingValueList)

  Adds a binding value list to the binding set.
  Parameters:
    `bindingValueList` - the list of values to be added to the binding set. The values are ordered to correspond with the order of the variables for this binding set's query literal.

### addAll

    public void addAll(java.util.ArrayList bindingValueLists)

  Adds a list of binding value lists to the binding set.
  Parameters:
    `bindingValueLists` - the list of binding value lists to be added to the binding set

### setNbrInstances

    public void setNbrInstances(int nbrFormulaInstances)

  Sets the number of instances of this literal in the KB.
  Parameters:
    `nbrFormulaInstances` - the number of instances of this literal in the KB

### getNbrInstances

    public int getNbrInstances()

  Gets the number of instances of this literal in the KB.
  Returns:
    the number of instances matching this literal formula in the KB. Value of -1 indicates the variable is not yet set

### isBindingPostponed

    public boolean isBindingPostponed()

  Returns `true` iff the asking of the binding values has been postponed (due to the estimated number of KB instances exceeding a user-controlled threshold).
  Returns:
    `true` iff the asking of the binding values has been postponed (due to the estimated number of KB instances exceeding a user-controlled threshold)

### size

    public int size()

  Returns the size of the binding set for this literal.
  Returns:
    the size of the binding set for this literal

### getVariables

    public java.util.ArrayList getVariables()

  Returns the variables in this binding set.
  Returns:
    the variables in this binding set

### getMt

    public CycFort getMt()

  Returns the microtheory in which the variable bindings were obtained.
  Returns:
    the microtheory in which the variable bindings were obtained

### displayBindingSet

    public void displayBindingSet()

  Displays the binding set.

### equals

    public boolean equals(java.lang.Object object)

  Returns `true` if the object equals this object.
  Overrides:
    `equals` in class `java.lang.Object`
  Parameters:
    `object` - the object for comparison
  Returns:
    `boolean` indicating equality of an object with this object.

### compareTo

    public int compareTo(java.lang.Object object)

  Compares this object with the specified object for order. Returns a negative integer, zero, or a positive integer as this object is less than, equal to, or greater than the specified object.
  Specified by:
    `compareTo` in interface `java.lang.Comparable`
  Parameters:
    `object` - the reference object with which to compare.
  Returns:
    a negative integer, zero, or a positive integer as this object is less than, equal to, or greater than the specified object

### toString

    public java.lang.String toString()

  Returns a `String` representation of the `BindingSet` object.
  Overrides:
    `toString` in class `java.lang.Object`
  Returns:
    a `String` representation of the `BindingSet` object.

### isUnary

    public boolean isUnary()

  Returns `true` iff this is a formula having one variable.
  Returns:
    `true` iff this is a formula having one variable

### isCartesianProduct

    public boolean isCartesianProduct()

  Returns `true` iff the binding set has the form of an uninstantiated cartesian product.
  Returns:
    `true` iff the binding set has the form of an uninstantiated cartesian product

### getCartesianProductBindingSets

    public java.util.ArrayList getCartesianProductBindingSets()

  Returns the set of binding sets comprising a cartesian product join, which is not actually instantiatiated to save space.
  Returns:
    the set of binding sets comprising a cartesian product join

### setCartesianProductBindingSets

    public void setCartesianProductBindingSets(java.util.ArrayList cartesianProductBindingSets)

  Sets the set of binding sets comprising a cartesian product join.
  Parameters:
    `cartesianProductBindingSets` - the set of binding sets comprising a cartesian product join

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