## org.apache.lucene.queryparser.flexible.core.nodes
Interface FieldableNode

All Superinterfaces:
  QueryNode

All Known Subinterfaces:
  FieldValuePairQueryNode<T>, RangeQueryNode<T>

All Known Implementing Classes:
  AbstractRangeQueryNode, FieldQueryNode, FuzzyQueryNode, MultiPhraseQueryNode, NumericQueryNode, NumericRangeQueryNode, PhraseSlopQueryNode, PrefixWildcardQueryNode, QuotedFieldQueryNode, RegexpQueryNode, SlopQueryNode, TermRangeQueryNode, TokenizedPhraseQueryNode, WildcardQueryNode

    public interface FieldableNode

extends QueryNode

A query node implements `FieldableNode` interface to indicate that its children and itself are associated to a specific field. If it has any children which also implements this interface, it must ensure the children are associated to the same field.

Method Summary
`CharSequence` `getField()` Returns the field associated to the node and every node under it.
`void` `setField(CharSequence fieldName)` Associates the node to a field.

Methods inherited from interface org.apache.lucene.queryparser.flexible.core.nodes.QueryNode
`add, add, cloneTree, containsTag, getChildren, getParent, getTag, getTagMap, isLeaf, set, setTag, toQueryString, toString, unsetTag`

Method Detail

### getField

    CharSequence getField()

  Returns the field associated to the node and every node under it.

  Returns:
    the field name

### setField

    void setField(CharSequence fieldName)

  Associates the node to a field.

  Parameters:
    `fieldName` - the field name

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