UnionQueryImpl ("The Adobe AEM Quickstart and Web Application.")

java.lang.Object
- org.apache.jackrabbit.oak.query.UnionQueryImpl

All Implemented Interfaces:: Query

public class UnionQueryImpl
extends java.lang.Object
implements Query

Represents a union query.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`bindValue(java.lang.String key, PropertyValue value)`
`Query`	`buildAlternativeQuery()` Try to convert the query to an alternative form, specially a "union".
`boolean`	`containsUnfilteredFullTextCondition()` Whether the condition contains a fulltext condition that can not be applied to the filter, for example because it is part of an "or" condition of the form "where a=1 or contains(., 'x')".
`Query`	`copyOf()` returns a clone of the current object.
`Result`	`executeQuery()`
`java.util.List<java.lang.String>`	`getBindVariableNames()`
`int`	`getColumnIndex(java.lang.String columnName)`
`ColumnImpl[]`	`getColumns()`
`double`	`getEstimatedCost()` Get the estimated cost.
`java.lang.String`	`getIndexCostInfo()` Get the index cost as a JSON string.
`java.lang.String`	`getPlan()` Get the query plan.
`java.util.Iterator<ResultRowImpl>`	`getRows()`
`int`	`getSelectorIndex(java.lang.String selectorName)`
`java.lang.String[]`	`getSelectorNames()`
`long`	`getSize()` Get the size if known.
`long`	`getSize(Result.SizePrecision precision, long max)` Get the size if known.
`java.lang.String`	`getStatement()`
`Tree`	`getTree(java.lang.String path)`
`void`	`init()` Initialize the query.
`boolean`	`isInit()`
`boolean`	`isInternal()`
`boolean`	`isMeasureOrExplainEnabled()`
`boolean`	`isSortedByIndex()` Returns whether the results will be sorted by index.
`void`	`prepare()` Prepare the query.
`void`	`setExecutionContext(ExecutionContext context)`
`void`	`setExplain(boolean explain)`
`void`	`setInternal(boolean isInternal)`
`void`	`setLimit(long limit)`
`void`	`setMeasure(boolean measure)`
`void`	`setOffset(long offset)`
`void`	`setOrderings(OrderingImpl[] orderings)`
`void`	`setTraversalEnabled(boolean traversal)`
`java.lang.String`	`toString()`

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

- Method Detail
  - setExecutionContext
```
public void setExecutionContext(ExecutionContext context)
```
    Specified by:
    
    setExecutionContext in interface Query
  - setOrderings
```
public void setOrderings(OrderingImpl[] orderings)
```
    Specified by:
    
    setOrderings in interface Query
  - setLimit
```
public void setLimit(long limit)
```
    Specified by:
    
    setLimit in interface Query
  - setOffset
```
public void setOffset(long offset)
```
    Specified by:
    
    setOffset in interface Query
  - bindValue
```
public void bindValue(java.lang.String key,
                      PropertyValue value)
```
    Specified by:
    
    bindValue in interface Query
  - setTraversalEnabled
```
public void setTraversalEnabled(boolean traversal)
```
    Specified by:
    
    setTraversalEnabled in interface Query
  - prepare
```
public void prepare()
```
    Description copied from interface: Query
    
    Prepare the query. The cost is estimated and the execution plan is decided here.
    
    Specified by:
    
    prepare in interface Query
  - getEstimatedCost
```
public double getEstimatedCost()
```
    Description copied from interface: Query
    
    Get the estimated cost.
    
    Specified by:
    
    getEstimatedCost in interface Query
    
    Returns:
    
    the estimated cost
  - getBindVariableNames
```
public java.util.List<java.lang.String> getBindVariableNames()
```
    Specified by:
    
    getBindVariableNames in interface Query
  - getColumns
```
public ColumnImpl[] getColumns()
```
    Specified by:
    
    getColumns in interface Query
  - getSelectorNames
```
public java.lang.String[] getSelectorNames()
```
    Specified by:
    
    getSelectorNames in interface Query
  - getSelectorIndex
```
public int getSelectorIndex(java.lang.String selectorName)
```
    Specified by:
    
    getSelectorIndex in interface Query
  - getSize
```
public long getSize()
```
    Description copied from interface: Query
    
    Get the size if known.
    
    Specified by:
    
    getSize in interface Query
    
    Returns:
    
    the size, or -1 if unknown
  - getSize
```
public long getSize(Result.SizePrecision precision,
                    long max)
```
    Description copied from interface: Query
    
    Get the size if known.
    
    Specified by:
    
    getSize in interface Query
    
    Parameters:
    
    precision - the required precision
    
    max - the maximum nodes read (for an exact size)
    
    Returns:
    
    the size, or -1 if unknown
  - setExplain
```
public void setExplain(boolean explain)
```
    Specified by:
    
    setExplain in interface Query
  - setMeasure
```
public void setMeasure(boolean measure)
```
    Specified by:
    
    setMeasure in interface Query
  - init
```
public void init()
```
    Description copied from interface: Query
    
    Initialize the query. This will 'wire' selectors into constraints, and collect bind variable names. It will also simplify expressions if possible, but will not prepare the query.
    
    Specified by:
    
    init in interface Query
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class java.lang.Object
  - executeQuery
```
public Result executeQuery()
```
    Specified by:
    
    executeQuery in interface Query
  - getPlan
```
public java.lang.String getPlan()
```
    Description copied from interface: Query
    
    Get the query plan. The query must already be prepared.
    
    Specified by:
    
    getPlan in interface Query
    
    Returns:
    
    the query plan
  - getIndexCostInfo
```
public java.lang.String getIndexCostInfo()
```
    Description copied from interface: Query
    
    Get the index cost as a JSON string. The query must already be prepared.
    
    Specified by:
    
    getIndexCostInfo in interface Query
    
    Returns:
    
    the index cost
  - getTree
```
public Tree getTree(java.lang.String path)
```
    Specified by:
    
    getTree in interface Query
  - isMeasureOrExplainEnabled
```
public boolean isMeasureOrExplainEnabled()
```
    Specified by:
    
    isMeasureOrExplainEnabled in interface Query
  - getColumnIndex
```
public int getColumnIndex(java.lang.String columnName)
```
    Specified by:
    
    getColumnIndex in interface Query
  - getRows
```
public java.util.Iterator<ResultRowImpl> getRows()
```
    Specified by:
    
    getRows in interface Query
  - setInternal
```
public void setInternal(boolean isInternal)
```
    Specified by:
    
    setInternal in interface Query
  - isSortedByIndex
```
public boolean isSortedByIndex()
```
    Description copied from interface: Query
    
    Returns whether the results will be sorted by index. The query must already be prepared.
    
    Specified by:
    
    isSortedByIndex in interface Query
    
    Returns:
    
    if sorted by index
  - buildAlternativeQuery
```
public Query buildAlternativeQuery()
```
    Description copied from interface: Query
    
    Try to convert the query to an alternative form, specially a "union". To avoid any potential error due to state variables perform the conversion before the Query.init().
    
    Specified by:
    
    buildAlternativeQuery in interface Query
    
    Returns:
    
    this if no conversions are possible or a new instance of a Query. Cannot return null.
  - copyOf
```
public Query copyOf()
             throws java.lang.IllegalStateException
```
    Description copied from interface: Query
    
    returns a clone of the current object. Will throw an exception in case it's invoked in a non appropriate moment. For example the default QueryImpl cannot be cloned once the Query.init() has been executed.
    
    May return null if not implemented.
    
    Specified by:
    
    copyOf in interface Query
    
    Returns:
    
    a clone of self
    
    Throws:
    
    java.lang.IllegalStateException
  - isInit
```
public boolean isInit()
```
    Specified by:
    
    isInit in interface Query
    
    Returns:
    
    true if the query has been already initialised. false otherwise.
  - getStatement
```
public java.lang.String getStatement()
```
    Specified by:
    
    getStatement in interface Query
    
    Returns:
    
    the original statement as it was used to construct the object. If not provided the toString() will be used instead.
  - isInternal
```
public boolean isInternal()
```
    Specified by:
    
    isInternal in interface Query
    
    Returns:
    
    true if the current query is internal. false otherwise.
  - containsUnfilteredFullTextCondition
```
public boolean containsUnfilteredFullTextCondition()
```
    Description copied from interface: Query
    
    Whether the condition contains a fulltext condition that can not be applied to the filter, for example because it is part of an "or" condition of the form "where a=1 or contains(., 'x')".
    
    Specified by:
    
    containsUnfilteredFullTextCondition in interface Query
    
    Returns:
    
    true if yes

Class UnionQueryImpl

Method Summary

Methods inherited from class java.lang.Object

Method Detail

setExecutionContext

setOrderings

setLimit

setOffset

bindValue

setTraversalEnabled

prepare

getEstimatedCost

getBindVariableNames

getColumns

getSelectorNames

getSelectorIndex

getSize

getSize

setExplain

setMeasure

init

toString

executeQuery

getPlan

getIndexCostInfo

getTree

isMeasureOrExplainEnabled

getColumnIndex

getRows

setInternal

isSortedByIndex

buildAlternativeQuery

copyOf

isInit

getStatement

isInternal

containsUnfilteredFullTextCondition