public class FieldLength extends FieldExpression
NOTE: The value returned is lossy and does not exactly represent the number of tokenized terms for a field.
FieldExpression.StringModealias, EMPTY_ARRAY| Constructor and Description |
|---|
FieldLength(String fieldName)
Construct a new field source for
fieldName |
FieldLength(String fieldName,
String alias)
Construct a new field source for
fieldName |
| Modifier and Type | Method and Description |
|---|---|
boolean |
equalsIgnoreAlias(FieldExpression other)
Returns
true if other is the same as this, with the exception of alias. |
String |
getFieldName()
Get the name of the field to return a field length for.
|
SchemaField.Type |
getType(Schema schema)
Resolve the type for this expression.
|
boolean |
hasChildren()
Returns
true if this field expression has any sub FieldExpressions. |
int |
hashCode() |
boolean |
isConstant()
Returns
true if this field expression evaluates to a constant value. |
FieldExpression |
rewriteChildren(FieldExpressionHandler handler)
Traverse this FieldExpression using
handler to visit/rewrite direct child elements if this expression. |
void |
setFieldName(String value)
Set the name of the field to return.
|
void |
toString(StringBuilder buffer,
FieldExpression.StringMode mode)
Writes the string representation of this field expression to
buffer. |
as, clone, containsAlias, copyOf, equals, equalsIgnoreAlias, getAlias, getDefaultAlias, handleFieldExpression, isConstant, quote, rewrite, rewrite, setAlias, toString, toStringpublic FieldLength(String fieldName)
fieldNamepublic boolean isConstant()
true if this field expression evaluates to a constant value.isConstant in class FieldExpressionpublic boolean hasChildren()
true if this field expression has any sub FieldExpressions.hasChildren in class FieldExpressionpublic SchemaField.Type getType(Schema schema)
getType in class FieldExpressionpublic String getFieldName()
getFieldName in class FieldExpressionpublic void setFieldName(String value)
public void toString(StringBuilder buffer, FieldExpression.StringMode mode)
buffer.
NOTE: the alias will not be written to buffer by this function.
toString in class FieldExpressionpublic FieldExpression rewriteChildren(FieldExpressionHandler handler)
handler to visit/rewrite direct child elements if this expression.
NOTE: this method traverses direct child expressions (if any) only.
rewriteChildren in class FieldExpressionpublic boolean equalsIgnoreAlias(FieldExpression other)
true if other is the same as this, with the exception of alias.equalsIgnoreAlias in class FieldExpressionpublic int hashCode()
hashCode in class FieldExpressionCopyright © 2018 Attivio, Inc. All Rights Reserved.
PATENT NOTICE: Attivio, Inc. Software Related Patents. With respect to the Attivio software product(s) being used, the following patents apply: Querying Joined Data Within A Search Engine Index: United States Patent No.(s): 8,073,840. Ordered Processing of Groups of Messages: U.S. Patent No.(s) 8,495,656. Signal processing approach to sentiment analysis for entities in documents: U.S. Patent No.(s) 8,725,494. Other U.S. and International Patents Pending.