public class AggregateExpression extends UnaryFieldExpression
FieldExpression.| Modifier and Type | Class and Description |
|---|---|
static class |
AggregateExpression.Method
Aggregation method available.
|
FieldExpression.StringModeexpressionalias, EMPTY_ARRAY| Constructor and Description |
|---|
AggregateExpression(AggregateExpression.Method method,
FieldExpression expression)
Construct a new AggregateExpression.
|
AggregateExpression(AggregateExpression.Method method,
FieldExpression expression,
String alias)
Construct a new AggregateExpression to apply to a
FieldExpression with an alias. |
AggregateExpression(AggregateExpression.Method method,
String fieldName)
Construct a new AggregateExpression to apply to a field.
|
AggregateExpression(AggregateExpression.Method method,
String fieldName,
String alias)
Construct a new AggregateExpression to apply to a field with an alias.
|
| Modifier and Type | Method and Description |
|---|---|
AggregateExpression |
clone() |
protected AggregateExpression |
clone(FieldExpression e)
Create a new instance of this FieldExpression, with a different argument.
|
AggregateExpression.Method |
getMethod()
Get the aggregatation method to use.
|
SchemaField.Type |
getType(Schema schema)
Resolve the type for this expression.
|
int |
hashCode() |
boolean |
isConstant()
Returns
true if this field expression evaluates to a constant value. |
protected boolean |
parametersEqual(FieldExpression other)
Returns
true if other's parameters are the same as this. |
protected void |
toString(StringBuilder buffer,
FieldExpression.StringMode mode)
Writes the string representation of this field expression to
buffer. |
equalsIgnoreAlias, getExpression, getFieldName, hasChildren, rewrite, rewriteChildren, setExpressionas, containsAlias, copyOf, equals, equalsIgnoreAlias, getAlias, getDefaultAlias, handleFieldExpression, isConstant, quote, rewrite, setAlias, toString, toStringpublic AggregateExpression(AggregateExpression.Method method, String fieldName)
public AggregateExpression(AggregateExpression.Method method, String fieldName, String alias)
public AggregateExpression(AggregateExpression.Method method, FieldExpression expression)
public AggregateExpression(AggregateExpression.Method method, FieldExpression expression, String alias)
FieldExpression with an alias.public boolean isConstant()
true if this field expression evaluates to a constant value.isConstant in class UnaryFieldExpressionpublic SchemaField.Type getType(Schema schema)
getType in class FieldExpressionpublic AggregateExpression.Method getMethod()
protected void toString(StringBuilder buffer, FieldExpression.StringMode mode)
buffer.
NOTE: the alias will not be written to buffer by this function.
toString in class FieldExpressionprotected boolean parametersEqual(FieldExpression other)
true if other's parameters are the same as this.parametersEqual in class UnaryFieldExpressionpublic int hashCode()
hashCode in class UnaryFieldExpressionpublic AggregateExpression clone()
clone in class UnaryFieldExpressionprotected AggregateExpression clone(FieldExpression e)
clone in class UnaryFieldExpressionCopyright © 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.