java.lang.Object
- it.unimi.di.big.mg4j.query.nodes.AbstractQueryBuilderVisitor<DocumentIterator>
- - it.unimi.di.big.mg4j.search.DocumentIteratorBuilderVisitor

All Implemented Interfaces:

QueryBuilderVisitor<DocumentIterator>, FlyweightPrototype<QueryBuilderVisitor<DocumentIterator>>
```
public class DocumentIteratorBuilderVisitor
extends AbstractQueryBuilderVisitor<DocumentIterator>
```
A QueryBuilderVisitor that builds a DocumentIterator resolving the queries using the objects in it.unimi.di.big.mg4j.search.
This elementary builder visitor invokes Index.documents(CharSequence) to build the leaf index iterators. Thus, the resulting DocumentIterator should be carefully disposed after usage (every index iterator may open a file or a socket).
Prefix and MultiTerm nodes cause the creation of a MultiTermIndexIterator, in the first case by calling Index.documents(CharSequence,int) and in the second case by creating a MultiTermIndexIterator with the name and frequency equal to the maximum frequency over all terms. Other implementations might choose differently.
At construction time, you must provide a map from strings to indices that will be used to resolve Select nodes. The map may be null, in which case such nodes will cause an IllegalArgumentException. If a Select node contains an index name that does not appear in the map a NoSuchElementException will be thrown instead.
A production site will likely substitute this builder visitor with one that reuses index readers out of a pool.
Instances of this class may be safely reused by calling prepare().

Field Summary

Fields
Modifier and Type	Field	Description
`protected ObjectArrayList<Index>`	`curr`	The stack of selected indices (changed by `Select` nodes).
`protected Index`	`defaultIndex`	The default index.
`protected Reference2ReferenceMap<Index,Object>`	`index2Parser`	A map associating an object with a `parse(String)` method to each payload-based index.
`protected Object2ReferenceMap<String,Index>`	`indexMap`	A map associating a textual key to indices.
`protected int`	`limit`	The limit on prefix queries provided in the constructor.
`protected long`	`numberOfDocuments`	The number of documents (fetched from the default index).
`protected double`	`weight`	The last seen, but still not consumed, weight, or `Double.NaN`.
`protected DoubleArrayList`	`weights`	The stack of weights.

Constructor Summary

Constructors
Constructor	Description
`DocumentIteratorBuilderVisitor(Object2ReferenceMap<String,Index> indexMap, Index defaultIndex, int limit)`	Creates a new builder visitor.
`DocumentIteratorBuilderVisitor(Object2ReferenceMap<String,Index> indexMap, Reference2ReferenceMap<Index,Object> index2Parser, Index defaultIndex, int limit)`	Creates a new builder visitor with additional parsers for payload-based indices.

Method Summary

Modifier and Type	Method	Description
`DocumentIteratorBuilderVisitor`	`copy()`
`DocumentIterator[]`	`newArray(int len)`	Builds an array of given length of type `T`.
`DocumentIteratorBuilderVisitor`	`prepare()`	No-op.
`protected void`	`pushWeight()`	Pushes `weight`, if it is not `Double.NaN`, or 1, otherwise, on the stack of weights; in either case, sets `weight` to `Double.NaN`.
`DocumentIterator`	`visit(False node)`	Visits `False`.
`DocumentIterator`	`visit(Prefix node)`	Visits a `Prefix`.
`DocumentIterator`	`visit(Range node)`	Visits a `Range`.
`DocumentIterator`	`visit(Term node)`	Visits a `Term`.
`DocumentIterator`	`visit(True node)`	Visits `True`.
`DocumentIterator`	`visitPost(Align node, DocumentIterator[] subNode)`	Visits an `Align` node after recursing into the corresponding subtree.
`DocumentIterator`	`visitPost(And node, DocumentIterator[] subNode)`	Visits an `And` node after recursing into the corresponding subtree.
`DocumentIterator`	`visitPost(Annotation node, DocumentIterator subNode)`	Visits a `Annotation` node after recursing into the corresponding subtree.
`DocumentIterator`	`visitPost(Consecutive node, DocumentIterator[] subNode)`	Visits a `Consecutive` node after recursing into the corresponding subtree.
`DocumentIterator`	`visitPost(Containment node, DocumentIterator[] subNode)`	Visits an `Containment` node after recursing into the corresponding subtree.
`DocumentIterator`	`visitPost(Difference node, DocumentIterator[] subNode)`	Visits a `Difference` node after recursing into the corresponding subtree.
`DocumentIterator`	`visitPost(Inclusion node, DocumentIterator[] subNode)`	Visits an `Inclusion` node after recursing into the corresponding subtree.
`DocumentIterator`	`visitPost(LowPass node, DocumentIterator subNode)`	Visits a `LowPass` node after recursing into the corresponding subtree.
`DocumentIterator`	`visitPost(MultiTerm node, DocumentIterator[] subNode)`	Visits a `MultiTerm` node after recursing into the corresponding subtree.
`DocumentIterator`	`visitPost(Not node, DocumentIterator subNode)`	Visits a `Not` node after recursing into the corresponding subtree.
`DocumentIterator`	`visitPost(OrderedAnd node, DocumentIterator[] subNode)`	Visits an `OrderedAnd` node after recursing into the corresponding subtree.
`DocumentIterator`	`visitPost(Or node, DocumentIterator[] subNode)`	Visits an `Or` node after recursing into the corresponding subtree.
`DocumentIterator`	`visitPost(Remap node, DocumentIterator subNode)`	Visits a `Remap` node after recursing into the corresponding subtree.
`DocumentIterator`	`visitPost(Select node, DocumentIterator subNode)`	Visits a `Select` node after recursing into the corresponding subtree.
`DocumentIterator`	`visitPost(Weight node, DocumentIterator subNode)`	Visits a `Weight` node after recursing into the corresponding subtree.
`boolean`	`visitPre(Align node)`	Visits an `Align` node before recursing into the corresponding subtree.
`boolean`	`visitPre(And node)`	Visits an `And` node before recursing into the corresponding subtree.
`boolean`	`visitPre(Annotation node)`	Visits a `Annotation` node before recursing into the corresponding subtree.
`boolean`	`visitPre(Consecutive node)`	Visits a `Consecutive` node before recursing into the corresponding subtree.
`boolean`	`visitPre(Containment node)`	Visits an `Containment` node before recursing into the corresponding subtree.
`boolean`	`visitPre(Difference node)`	Visits a `Difference` node before recursing into the corresponding subtree.
`boolean`	`visitPre(Inclusion node)`	Visits an `Inclusion` node before recursing into the corresponding subtree.
`boolean`	`visitPre(LowPass node)`	Visits a `LowPass` node before recursing into the corresponding subtree.
`boolean`	`visitPre(MultiTerm node)`	Visits a `MultiTerm` node before recursing into the corresponding subtree.
`boolean`	`visitPre(Not node)`	Visits a `Not` node before recursing into the corresponding subtree.
`boolean`	`visitPre(Or node)`	Visits an `Or` node before recursing into the corresponding subtree.
`boolean`	`visitPre(OrderedAnd node)`	Visits an `OrderedAnd` node before recursing into the corresponding subtree.
`boolean`	`visitPre(Remap node)`	Visits a `Remap` node before recursing into the corresponding subtree.
`boolean`	`visitPre(Select node)`	Visits a `Select` node before recursing into the corresponding subtree.
`boolean`	`visitPre(Weight node)`	Visits a `Weight` node before recursing into the corresponding subtree.
`protected double`	`weight()`	Returns `weight`, if it is not `Double.NaN`, or 1, otherwise; in either case, sets `weight` to `Double.NaN`.

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

- Field Detail
  - indexMap
```
protected final Object2ReferenceMap<String,Index> indexMap
```
    A map associating a textual key to indices.
  - index2Parser
```
protected final Reference2ReferenceMap<Index,Object> index2Parser
```
    A map associating an object with a parse(String) method to each payload-based index.
  - defaultIndex
```
protected final Index defaultIndex
```
    The default index.
  - numberOfDocuments
```
protected final long numberOfDocuments
```
    The number of documents (fetched from the default index).
  - limit
```
protected final int limit
```
    The limit on prefix queries provided in the constructor.
  - curr
```
protected ObjectArrayList<Index> curr
```
    The stack of selected indices (changed by Select nodes).
  - weights
```
protected DoubleArrayList weights
```
    The stack of weights.
  - weight
```
protected double weight
```
    The last seen, but still not consumed, weight, or Double.NaN.
- Constructor Detail
  - DocumentIteratorBuilderVisitor
```
public DocumentIteratorBuilderVisitor(Object2ReferenceMap<String,Index> indexMap,
                                      Index defaultIndex,
                                      int limit)
```
    Creates a new builder visitor.
    
    Parameters:
    
    indexMap - a map from index names to indices, to be used in Select nodes, or null if the only used index is the default index.
    
    defaultIndex - the default index.
    
    limit - a limit that will be used with Prefix nodes.
  - DocumentIteratorBuilderVisitor
```
public DocumentIteratorBuilderVisitor(Object2ReferenceMap<String,Index> indexMap,
                                      Reference2ReferenceMap<Index,Object> index2Parser,
                                      Index defaultIndex,
                                      int limit)
```
    Creates a new builder visitor with additional parsers for payload-based indices.
    
    Parameters:
    
    indexMap - a map from index names to indices, to be used in Select nodes, or null if the only used index is the default index.
    
    defaultIndex - the default index.
    
    limit - a limit that will be used with Prefix nodes.
- Method Detail
  - pushWeight
```
protected void pushWeight()
```
    Pushes weight, if it is not Double.NaN, or 1, otherwise, on the stack of weights; in either case, sets weight to Double.NaN.
  - weight
```
protected double weight()
```
    Returns weight, if it is not Double.NaN, or 1, otherwise; in either case, sets weight to Double.NaN.
    
    Returns:
    
    weight, if it is not Double.NaN, or 1, otherwise.
  - copy
```
public DocumentIteratorBuilderVisitor copy()
```
  - prepare
```
public DocumentIteratorBuilderVisitor prepare()
```
    Description copied from class: AbstractQueryBuilderVisitor
    
    No-op.
    
    Specified by:
    
    prepare in interface QueryBuilderVisitor<DocumentIterator>
    
    Overrides:
    
    prepare in class AbstractQueryBuilderVisitor<DocumentIterator>
    
    Returns:
    
    this visitor.
  - newArray
```
public DocumentIterator[] newArray(int len)
```
    Description copied from interface: QueryBuilderVisitor
    
    Builds an array of given length of type T.
    Because of erasure, generic classes in Java cannot allocate arrays of generic types. This impossibility can be a problem if for some reason the visitPost() methods expect an actual array of type T. This method must provide an array of given length that is an acceptable input for all visitPost() methods.
    Note that by declaring an implementing class of this interface that has a sole constructor accepting an argument of type Class<T>, you will force the user to provide the class of the generic type, opening the way for the reflective methods in Array.
    
    Parameters:
    
    len - the required array length.
    
    Returns:
    
    an array of type T of length len.
  - visit
```
public DocumentIterator visit(Term node)
                       throws QueryBuilderVisitorException
```
    Description copied from interface: QueryBuilderVisitor
    
    Visits a Term.
    
    Parameters:
    
    node - the leaf to be visited.
    
    Returns:
    
    true if the visit should continue.
    
    Throws:
    
    QueryBuilderVisitorException
  - visit
```
public DocumentIterator visit(Prefix node)
                       throws QueryBuilderVisitorException
```
    Description copied from interface: QueryBuilderVisitor
    
    Visits a Prefix.
    
    Parameters:
    
    node - the leaf to be visited.
    
    Returns:
    
    an appropriate return value (usually, the object built using the elements in subNodeResult) if the visit should continue, or null.
    
    Throws:
    
    QueryBuilderVisitorException
  - visit
```
public DocumentIterator visit(Range node)
                       throws QueryBuilderVisitorException
```
    Description copied from interface: QueryBuilderVisitor
    
    Visits a Range.
    
    Parameters:
    
    node - the leaf to be visited.
    
    Returns:
    
    true if the visit should continue.
    
    Throws:
    
    QueryBuilderVisitorException
  - visitPre
```
public boolean visitPre(And node)
                 throws QueryBuilderVisitorException
```
    Description copied from interface: QueryBuilderVisitor
    
    Visits an And node before recursing into the corresponding subtree.
    
    Specified by:
    
    visitPre in interface QueryBuilderVisitor<DocumentIterator>
    
    Overrides:
    
    visitPre in class AbstractQueryBuilderVisitor<DocumentIterator>
    
    Parameters:
    
    node - the node to be visited.
    
    Returns:
    
    true if the visit should continue.
    
    Throws:
    
    QueryBuilderVisitorException
  - visitPost
```
public DocumentIterator visitPost(And node,
                                  DocumentIterator[] subNode)
                           throws QueryBuilderVisitorException
```
    Description copied from interface: QueryBuilderVisitor
    
    Visits an And node after recursing into the corresponding subtree.
    
    Parameters:
    
    node - the internal node to be visited.
    
    subNode - the array of results returned by subnodes.
    
    Returns:
    
    an appropriate return value (usually, the object built using the elements in subNodeResult) if the visit should continue, or null.
    
    Throws:
    
    QueryBuilderVisitorException
  - visitPre
```
public boolean visitPre(Consecutive node)
                 throws QueryBuilderVisitorException
```
    Description copied from interface: QueryBuilderVisitor
    
    Visits a Consecutive node before recursing into the corresponding subtree.
    
    Specified by:
    
    visitPre in interface QueryBuilderVisitor<DocumentIterator>
    
    Overrides:
    
    visitPre in class AbstractQueryBuilderVisitor<DocumentIterator>
    
    Parameters:
    
    node - the node to be visited.
    
    Returns:
    
    true if the visit should continue.
    
    Throws:
    
    QueryBuilderVisitorException
  - visitPost
```
public DocumentIterator visitPost(Consecutive node,
                                  DocumentIterator[] subNode)
                           throws QueryBuilderVisitorException
```
    Description copied from interface: QueryBuilderVisitor
    
    Visits a Consecutive node after recursing into the corresponding subtree.
    
    Parameters:
    
    node - the internal node to be visited.
    
    subNode - the array of results returned by subnodes.
    
    Returns:
    
    an appropriate return value (usually, the object built using the elements in subNodeResult) if the visit should continue, or null.
    
    Throws:
    
    QueryBuilderVisitorException
  - visitPre
```
public boolean visitPre(LowPass node)
                 throws QueryBuilderVisitorException
```
    Description copied from interface: QueryBuilderVisitor
    
    Visits a LowPass node before recursing into the corresponding subtree.
    
    Specified by:
    
    visitPre in interface QueryBuilderVisitor<DocumentIterator>
    
    Overrides:
    
    visitPre in class AbstractQueryBuilderVisitor<DocumentIterator>
    
    Parameters:
    
    node - the node to be visited.
    
    Returns:
    
    true if the visit should continue.
    
    Throws:
    
    QueryBuilderVisitorException
  - visitPost
```
public DocumentIterator visitPost(LowPass node,
                                  DocumentIterator subNode)
```
    Description copied from interface: QueryBuilderVisitor
    
    Visits a LowPass node after recursing into the corresponding subtree.
    
    Parameters:
    
    node - the internal node to be visited.
    
    subNode - the of result returned by the sole subnode.
    
    Returns:
    
    an appropriate return value (usually, the object built using subNodeResult) if the visit should continue, or null.
  - visitPre
```
public boolean visitPre(Annotation node)
                 throws QueryBuilderVisitorException
```
    Description copied from interface: QueryBuilderVisitor
    
    Visits a Annotation node before recursing into the corresponding subtree.
    
    Specified by:
    
    visitPre in interface QueryBuilderVisitor<DocumentIterator>
    
    Overrides:
    
    visitPre in class AbstractQueryBuilderVisitor<DocumentIterator>
    
    Parameters:
    
    node - the node to be visited.
    
    Returns:
    
    true if the visit should continue.
    
    Throws:
    
    QueryBuilderVisitorException
  - visitPost
```
public DocumentIterator visitPost(Annotation node,
                                  DocumentIterator subNode)
```
    Description copied from interface: QueryBuilderVisitor
    
    Visits a Annotation node after recursing into the corresponding subtree.
    
    Parameters:
    
    node - the internal node to be visited.
    
    subNode - the of result returned by the sole subnode.
    
    Returns:
    
    an appropriate return value (usually, the object built using subNodeResult) if the visit should continue, or null.
  - visitPre
```
public boolean visitPre(Not node)
                 throws QueryBuilderVisitorException
```
    Description copied from interface: QueryBuilderVisitor
    
    Visits a Not node before recursing into the corresponding subtree.
    
    Specified by:
    
    visitPre in interface QueryBuilderVisitor<DocumentIterator>
    
    Overrides:
    
    visitPre in class AbstractQueryBuilderVisitor<DocumentIterator>
    
    Parameters:
    
    node - the node to be visited.
    
    Returns:
    
    true if the visit should continue.
    
    Throws:
    
    QueryBuilderVisitorException
  - visitPost
```
public DocumentIterator visitPost(Not node,
                                  DocumentIterator subNode)
                           throws QueryBuilderVisitorException
```
    Description copied from interface: QueryBuilderVisitor
    
    Visits a Not node after recursing into the corresponding subtree.
    
    Parameters:
    
    node - the internal node to be visited.
    
    subNode - the of result returned by the sole subnode.
    
    Returns:
    
    an appropriate return value (usually, the object built using subNodeResult) if the visit should continue, or null.
    
    Throws:
    
    QueryBuilderVisitorException
  - visitPre
```
public boolean visitPre(Or node)
                 throws QueryBuilderVisitorException
```
    Description copied from interface: QueryBuilderVisitor
    
    Visits an Or node before recursing into the corresponding subtree.
    
    Specified by:
    
    visitPre in interface QueryBuilderVisitor<DocumentIterator>
    
    Overrides:
    
    visitPre in class AbstractQueryBuilderVisitor<DocumentIterator>
    
    Parameters:
    
    node - the node to be visited.
    
    Returns:
    
    true if the visit should continue.
    
    Throws:
    
    QueryBuilderVisitorException
  - visitPost
```
public DocumentIterator visitPost(Or node,
                                  DocumentIterator[] subNode)
                           throws QueryBuilderVisitorException
```
    Description copied from interface: QueryBuilderVisitor
    
    Visits an Or node after recursing into the corresponding subtree.
    
    Parameters:
    
    node - the internal node to be visited.
    
    Returns:
    
    an appropriate return value (usually, the object built using the elements in subNodeResult) if the visit should continue, or null.
    
    Throws:
    
    QueryBuilderVisitorException
  - visitPre
```
public boolean visitPre(OrderedAnd node)
                 throws QueryBuilderVisitorException
```
    Description copied from interface: QueryBuilderVisitor
    
    Visits an OrderedAnd node before recursing into the corresponding subtree.
    
    Specified by:
    
    visitPre in interface QueryBuilderVisitor<DocumentIterator>
    
    Overrides:
    
    visitPre in class AbstractQueryBuilderVisitor<DocumentIterator>
    
    Parameters:
    
    node - the node to be visited.
    
    Returns:
    
    true if the visit should continue.
    
    Throws:
    
    QueryBuilderVisitorException
  - visitPost
```
public DocumentIterator visitPost(OrderedAnd node,
                                  DocumentIterator[] subNode)
                           throws QueryBuilderVisitorException
```
    Description copied from interface: QueryBuilderVisitor
    
    Visits an OrderedAnd node after recursing into the corresponding subtree.
    
    Parameters:
    
    node - the internal node to be visited.
    
    subNode - the array of results returned by subnodes.
    
    Returns:
    
    an appropriate return value (usually, the object built using the elements in subNodeResult) if the visit should continue, or null.
    
    Throws:
    
    QueryBuilderVisitorException
  - visitPre
```
public boolean visitPre(Align node)
                 throws QueryBuilderVisitorException
```
    Description copied from interface: QueryBuilderVisitor
    
    Visits an Align node before recursing into the corresponding subtree.
    
    Specified by:
    
    visitPre in interface QueryBuilderVisitor<DocumentIterator>
    
    Overrides:
    
    visitPre in class AbstractQueryBuilderVisitor<DocumentIterator>
    
    Parameters:
    
    node - the node to be visited.
    
    Returns:
    
    true if the visit should continue.
    
    Throws:
    
    QueryBuilderVisitorException
  - visitPost
```
public DocumentIterator visitPost(Align node,
                                  DocumentIterator[] subNode)
                           throws QueryBuilderVisitorException
```
    Description copied from interface: QueryBuilderVisitor
    
    Visits an Align node after recursing into the corresponding subtree.
    
    Parameters:
    
    node - the internal node to be visited.
    
    subNode - the array of results returned by subnodes.
    
    Returns:
    
    an appropriate return value (usually, the object built using the elements in subNodeResult) if the visit should continue, or null.
    
    Throws:
    
    QueryBuilderVisitorException
  - visitPre
```
public boolean visitPre(Difference node)
                 throws QueryBuilderVisitorException
```
    Description copied from interface: QueryBuilderVisitor
    
    Visits a Difference node before recursing into the corresponding subtree.
    
    Specified by:
    
    visitPre in interface QueryBuilderVisitor<DocumentIterator>
    
    Overrides:
    
    visitPre in class AbstractQueryBuilderVisitor<DocumentIterator>
    
    Parameters:
    
    node - the node to be visited.
    
    Returns:
    
    true if the visit should continue.
    
    Throws:
    
    QueryBuilderVisitorException
  - visitPost
```
public DocumentIterator visitPost(Difference node,
                                  DocumentIterator[] subNode)
```
    Description copied from interface: QueryBuilderVisitor
    
    Visits a Difference node after recursing into the corresponding subtree.
    
    Parameters:
    
    node - the internal node to be visited.
    
    subNode - the array of results returned by subnodes.
    
    Returns:
    
    an appropriate return value (usually, the object built using the elements in subNodeResult) if the visit should continue, or null.
  - visitPre
```
public boolean visitPre(Inclusion node)
                 throws QueryBuilderVisitorException
```
    Description copied from interface: QueryBuilderVisitor
    
    Visits an Inclusion node before recursing into the corresponding subtree.
    
    Specified by:
    
    visitPre in interface QueryBuilderVisitor<DocumentIterator>
    
    Overrides:
    
    visitPre in class AbstractQueryBuilderVisitor<DocumentIterator>
    
    Parameters:
    
    node - the node to be visited.
    
    Returns:
    
    true if the visit should continue.
    
    Throws:
    
    QueryBuilderVisitorException
  - visitPost
```
public DocumentIterator visitPost(Inclusion node,
                                  DocumentIterator[] subNode)
```
    Description copied from interface: QueryBuilderVisitor
    
    Visits an Inclusion node after recursing into the corresponding subtree.
    
    Parameters:
    
    node - the internal node to be visited.
    
    subNode - the array of results returned by subnodes.
    
    Returns:
    
    an appropriate return value (usually, the object built using the elements in subNodeResult) if the visit should continue, or null.
  - visitPre
```
public boolean visitPre(Containment node)
                 throws QueryBuilderVisitorException
```
    Description copied from interface: QueryBuilderVisitor
    
    Visits an Containment node before recursing into the corresponding subtree.
    
    Specified by:
    
    visitPre in interface QueryBuilderVisitor<DocumentIterator>
    
    Overrides:
    
    visitPre in class AbstractQueryBuilderVisitor<DocumentIterator>
    
    Parameters:
    
    node - the node to be visited.
    
    Returns:
    
    true if the visit should continue.
    
    Throws:
    
    QueryBuilderVisitorException
  - visitPost
```
public DocumentIterator visitPost(Containment node,
                                  DocumentIterator[] subNode)
```
    Description copied from interface: QueryBuilderVisitor
    
    Visits an Containment node after recursing into the corresponding subtree.
    
    Parameters:
    
    node - the internal node to be visited.
    
    subNode - the array of results returned by subnodes.
    
    Returns:
    
    an appropriate return value (usually, the object built using the elements in subNodeResult) if the visit should continue, or null.
  - visitPre
```
public boolean visitPre(MultiTerm node)
                 throws QueryBuilderVisitorException
```
    Description copied from interface: QueryBuilderVisitor
    
    Visits a MultiTerm node before recursing into the corresponding subtree.
    
    Specified by:
    
    visitPre in interface QueryBuilderVisitor<DocumentIterator>
    
    Overrides:
    
    visitPre in class AbstractQueryBuilderVisitor<DocumentIterator>
    
    Parameters:
    
    node - the node to be visited.
    
    Returns:
    
    true if the visit should continue.
    
    Throws:
    
    QueryBuilderVisitorException
  - visitPost
```
public DocumentIterator visitPost(MultiTerm node,
                                  DocumentIterator[] subNode)
                           throws QueryBuilderVisitorException
```
    Description copied from interface: QueryBuilderVisitor
    
    Visits a MultiTerm node after recursing into the corresponding subtree.
    
    Parameters:
    
    node - the internal node to be visited.
    
    subNode - the of result returned by the sole subnode.
    
    Returns:
    
    an appropriate return value (usually, the object built using subNodeResult) if the visit should continue, or null.
    
    Throws:
    
    QueryBuilderVisitorException
  - visitPre
```
public boolean visitPre(Select node)
                 throws QueryBuilderVisitorException
```
    Description copied from interface: QueryBuilderVisitor
    
    Visits a Select node before recursing into the corresponding subtree.
    
    Specified by:
    
    visitPre in interface QueryBuilderVisitor<DocumentIterator>
    
    Overrides:
    
    visitPre in class AbstractQueryBuilderVisitor<DocumentIterator>
    
    Parameters:
    
    node - the node to be visited.
    
    Returns:
    
    true if the visit should continue.
    
    Throws:
    
    QueryBuilderVisitorException
  - visitPost
```
public DocumentIterator visitPost(Select node,
                                  DocumentIterator subNode)
```
    Description copied from interface: QueryBuilderVisitor
    
    Visits a Select node after recursing into the corresponding subtree.
    
    Parameters:
    
    node - the internal node to be visited.
    
    subNode - the of result returned by the sole subnode.
    
    Returns:
    
    an appropriate return value (usually, the object built using subNodeResult) if the visit should continue, or null.
  - visitPre
```
public boolean visitPre(Remap node)
                 throws QueryBuilderVisitorException
```
    Description copied from interface: QueryBuilderVisitor
    
    Visits a Remap node before recursing into the corresponding subtree.
    
    Specified by:
    
    visitPre in interface QueryBuilderVisitor<DocumentIterator>
    
    Overrides:
    
    visitPre in class AbstractQueryBuilderVisitor<DocumentIterator>
    
    Parameters:
    
    node - the node to be visited.
    
    Returns:
    
    true if the visit should continue.
    
    Throws:
    
    QueryBuilderVisitorException
  - visitPost
```
public DocumentIterator visitPost(Remap node,
                                  DocumentIterator subNode)
```
    Description copied from interface: QueryBuilderVisitor
    
    Visits a Remap node after recursing into the corresponding subtree.
    
    Parameters:
    
    node - the internal node to be visited.
    
    subNode - the of result returned by the sole subnode.
    
    Returns:
    
    an appropriate return value (usually, the object built using subNodeResult) if the visit should continue, or null.
  - visitPre
```
public boolean visitPre(Weight node)
                 throws QueryBuilderVisitorException
```
    Description copied from interface: QueryBuilderVisitor
    
    Visits a Weight node before recursing into the corresponding subtree.
    
    Specified by:
    
    visitPre in interface QueryBuilderVisitor<DocumentIterator>
    
    Overrides:
    
    visitPre in class AbstractQueryBuilderVisitor<DocumentIterator>
    
    Parameters:
    
    node - the node to be visited.
    
    Returns:
    
    true if the visit should continue.
    
    Throws:
    
    QueryBuilderVisitorException
  - visitPost
```
public DocumentIterator visitPost(Weight node,
                                  DocumentIterator subNode)
```
    Description copied from interface: QueryBuilderVisitor
    
    Visits a Weight node after recursing into the corresponding subtree.
    
    Parameters:
    
    node - the internal node to be visited.
    
    subNode - the of result returned by the sole subnode.
    
    Returns:
    
    an appropriate return value (usually, the object built using subNodeResult) if the visit should continue, or null.
  - visit
```
public DocumentIterator visit(True node)
                       throws QueryBuilderVisitorException
```
    Description copied from interface: QueryBuilderVisitor
    
    Visits True.
    
    Parameters:
    
    node - the leaf to be visited.
    
    Returns:
    
    true if the visit should continue.
    
    Throws:
    
    QueryBuilderVisitorException
  - visit
```
public DocumentIterator visit(False node)
                       throws QueryBuilderVisitorException
```
    Description copied from interface: QueryBuilderVisitor
    
    Visits False.
    
    Parameters:
    
    node - the leaf to be visited.
    
    Returns:
    
    true if the visit should continue.
    
    Throws:
    
    QueryBuilderVisitorException

Class DocumentIteratorBuilderVisitor

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

indexMap

index2Parser

defaultIndex

numberOfDocuments

limit

curr

weights

weight

Constructor Detail

DocumentIteratorBuilderVisitor

DocumentIteratorBuilderVisitor

Method Detail

pushWeight

weight

copy

prepare

newArray

visit

visit

visit

visitPre

visitPost

visitPre

visitPost

visitPre

visitPost

visitPre

visitPost

visitPre

visitPost

visitPre

visitPost

visitPre

visitPost

visitPre

visitPost

visitPre

visitPost

visitPre

visitPost

visitPre

visitPost

visitPre

visitPost

visitPre

visitPost

visitPre

visitPost

visitPre

visitPost

visit

visit