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## org.eclipse.birt.report.model.api
Class PropertyHandle

    java.lang.Object
      org.eclipse.birt.report.model.api.ElementDetailHandle
          org.eclipse.birt.report.model.api.ValueHandle
              org.eclipse.birt.report.model.api.SimpleValueHandle
                  org.eclipse.birt.report.model.api.PropertyHandle

    public class PropertyHandle

extends SimpleValueHandle

A handle for working with a top-level property of an element.

See Also:
  `PropertyDefn`, `PropertyType`

Field Summary
`protected org.eclipse.birt.report.model.metadata.ElementPropertyDefn` | `propDefn` Definition of the property.

Fields inherited from class org.eclipse.birt.report.model.api.ElementDetailHandle
`elementHandle`

Constructor Summary
`PropertyHandle(DesignElementHandle element, org.eclipse.birt.report.model.metadata.ElementPropertyDefn prop)` Constructs the handle for a top-level property with the given element handle and the definition of the property.
`PropertyHandle(DesignElementHandle element, java.lang.String propName)` Constructs the handle for a top-level property with the given element handle and property name.

Method Summary
`void` | `add(DesignElementHandle content)` Adds a report item to the property with the given element handle.
`void` | `add(DesignElementHandle content, int newPos)` Adds a report item to this property at the given position.
`void` | `addItem(java.lang.Object item)` Adds an item to the end of a list property.
`boolean` | `canContain(DesignElementHandle content)` Determines if the given slot can contain the `content`.
`boolean` | `canContain(java.lang.String type)` Determines if the slot can contain an element with the type of `type`.
`void` | `drop(DesignElementHandle content)` Drops a content element from the slot, and unresolve any reference property which refers the element to drop.
`void` | `drop(int posn)` Drops a content element at the given position from the slot, and unresolve any reference property which refers the element to drop.
`void` | `dropAndClear(DesignElementHandle content)` Drops a content element from the slot, and clear any reference property which refers the element to drop.
`void` | `dropAndClear(int posn)` Drops a content element at the given position from the slot, and clear any reference property which refers the element to drop.
`boolean` | `equals(java.lang.Object propertyHandle)` Returns true if the two property handle has the same element and the same property.
`DesignElementHandle` | `getContent(int posn)` Gets the content at the given position.
`int` | `getContentCount()` Returns the number of elements in the property.
`java.util.List` | `getContents()` Returns the a list with contents.Items are handles to the contents and in order by position.
`org.eclipse.birt.report.model.core.StructureContext` | `getContext()` Returns the structure context to the value.
`IPropertyDefn` | `getDefn()` Gets the generic property definition.
`java.util.ArrayList` | `getListValue()` Gets the value as a list.
`IElementPropertyDefn` | `getPropertyDefn()` Gets the property definition.
`protected java.lang.Object` | `getRawValue()` Gets the value stored in the memory directly.
`java.util.List` | `getReferenceableElementList()` returns the element reference value list if the property is element referenceable type.
`boolean` | `isLocal()` Determines whether this property value is set locally for this element.
`boolean` | `isReadOnly()` Checks whether a value is read-only in the property sheet.
`boolean` | `isSet()` Determines whether this property value is set for this element.
`boolean` | `isVisible()` Checks whether a value is visible in the property sheet.
`void` | `move(DesignElementHandle content, DesignElementHandle newContainer, java.lang.String propName)` Moves a content element into a slot in another container element.
`void` | `move(DesignElementHandle content, DesignElementHandle newContainer, java.lang.String propName, int newPos)` Moves a content element into a slot in another container element at the specified position.
`java.util.List` | `paste(DesignElementHandle content)` Pastes a report item to this property.
`java.util.List` | `paste(DesignElementHandle content, int newPos)` Pastes a report item to the slot.
`java.util.List` | `paste(IDesignElement content)` Pastes a report item to this property.
`java.util.List` | `paste(IDesignElement content, int newPos)` Pastes a report item to the property.
`void` | `removeItem(int posn)` Removes an item from a list property or member.
`void` | `setEncryption(java.lang.String encryptionID)`
`void` | `setValue(java.lang.Object value)` Implementation of abstract method defined in base class.
`void` | `shift(DesignElementHandle content, int toPosn)` Moves the position of a content element within the slot.

Methods inherited from class org.eclipse.birt.report.model.api.SimpleValueHandle
`addItem, clearValue, get, getAt, getChoices, getDefaultUnit, getDisplayValue, getFloatValue, getIntValue, getNumberValue, getStringValue, getTypeCode, getValue, indexOf, insertItem, isList, iterator, moveItem, removeItem, removeItems, replaceItem, setFloatValue, setIntValue, setNumberValue, setStringValue`

Methods inherited from class org.eclipse.birt.report.model.api.ValueHandle
`getReference`

Methods inherited from class org.eclipse.birt.report.model.api.ElementDetailHandle
`getDesign, getElement, getElementHandle, getModule`

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

Field Detail

### propDefn

    protected org.eclipse.birt.report.model.metadata.ElementPropertyDefn propDefn

  Definition of the property.

Constructor Detail

### PropertyHandle

    public PropertyHandle(DesignElementHandle element,
                          java.lang.String propName)

  Constructs the handle for a top-level property with the given element handle and property name.

  Parameters:
    `element` - a handle to a report element
    `propName` - the name of the property

### PropertyHandle

    public PropertyHandle(DesignElementHandle element,
                          org.eclipse.birt.report.model.metadata.ElementPropertyDefn prop)

  Constructs the handle for a top-level property with the given element handle and the definition of the property.

  Parameters:
    `element` - a handle to a report element
    `prop` - the definition of the property.

Method Detail

### getPropertyDefn

    public IElementPropertyDefn getPropertyDefn()

  Description copied from class: `ValueHandle`
  Gets the property definition. This is the definition of the property that contains the specific value. If the value is a structure or member, then this is the definition of the property that contains the list that contains the structure that contains the member.

  Specified by:
    `getPropertyDefn` in class `ValueHandle`
  Returns:
    the property definition

### getDefn

    public IPropertyDefn getDefn()

  Description copied from class: `SimpleValueHandle`
  Gets the generic property definition. Its a property definition for an element or a member definition for a structure.

  Specified by:
    `getDefn` in class `SimpleValueHandle`
  Returns:
    the value definition.

### getRawValue

    protected java.lang.Object getRawValue()

  Description copied from class: `SimpleValueHandle`
  Gets the value stored in the memory directly. The returned value won't be done any conversion.

  Specified by:
    `getRawValue` in class `SimpleValueHandle`
  Returns:
    the value stored in the memory

### setValue

    public void setValue(java.lang.Object value)
                  throws SemanticException

  Implementation of abstract method defined in base class.

  Specified by:
    `setValue` in class `SimpleValueHandle`
  Parameters:
    `value` - The new value.
  Throws:
    `SemanticException` - If the value is not valid for the property or member.
  See Also:
    `SimpleValueHandle.setIntValue(int)`, `SimpleValueHandle.setStringValue(java.lang.String)`, `SimpleValueHandle.setFloatValue(double)`, `SimpleValueHandle.setNumberValue(java.math.BigDecimal)`, `SimpleValueHandle.clearValue()`

### getContext

    public org.eclipse.birt.report.model.core.StructureContext getContext()

  Description copied from class: `ValueHandle`
  Returns the structure context to the value. The context is used to identify a list entry or member.

  Specified by:
    `getContext` in class `ValueHandle`

### isSet

    public boolean isSet()

  Determines whether this property value is set for this element. It is set if it is defined on this element property or any of its parents, or in the element's private style property. It is considered unset if it is set on a shared style.

  Returns:
    `true` if the value is set, `false` if it is not set

### isLocal

    public boolean isLocal()

  Determines whether this property value is set locally for this element. It is set if and only if it is defined on this element local property.

  Returns:
    `true` if the local value is set, otherwise `false`.

### equals

    public boolean equals(java.lang.Object propertyHandle)

  Returns true if the two property handle has the same element and the same property.

  Overrides:
    `equals` in class `java.lang.Object`
  Parameters:
    `propertyHandle` - the property handle
  Returns:
    true if the two property handles are same.

### getReferenceableElementList

    public java.util.List getReferenceableElementList()

  returns the element reference value list if the property is element referenceable type.

  Returns:
    list of the reference element value.

### isReadOnly

    public boolean isReadOnly()

  Description copied from class: `SimpleValueHandle`
  Checks whether a value is read-only in the property sheet.

  Specified by:
    `isReadOnly` in class `SimpleValueHandle`
  Returns:
    `true` if it is read-only. Otherwise `false`.

### isVisible

    public boolean isVisible()

  Description copied from class: `SimpleValueHandle`
  Checks whether a value is visible in the property sheet.

  Specified by:
    `isVisible` in class `SimpleValueHandle`
  Returns:
    `true` if it is visible. Otherwise `false`.

### removeItem

    public void removeItem(int posn)
                    throws PropertyValueException

  Description copied from class: `SimpleValueHandle`
  Removes an item from a list property or member. The handle must be working on a list property or member.

  Specified by:
    `removeItem` in class `SimpleValueHandle`
  Parameters:
    `posn` - The position of the item to remove.
  Throws:
    `PropertyValueException` - If the property is not a list property.

### addItem

    public void addItem(java.lang.Object item)
                 throws SemanticException

  Description copied from class: `SimpleValueHandle`
  Adds an item to the end of a list property. The handle must be working on a list property.

  Specified by:
    `addItem` in class `SimpleValueHandle`
  Parameters:
    `item` - The new item to add.
  Throws:
    `SemanticException` - If the property is not a list property, or if the the value of the item is incorrect.

### add

    public void add(DesignElementHandle content)
             throws SemanticException

  Adds a report item to the property with the given element handle. The report item must not be newly created and not yet added to the design.

  Parameters:
    `content` - handle to the newly created element
  Throws:
    `SemanticException` - if the element is not allowed to insert

### add

    public void add(DesignElementHandle content,
                    int newPos)
             throws SemanticException

  Adds a report item to this property at the given position. The item must not be newly created and not yet added to the design.

  Parameters:
    `content` - handle to the newly created element
    `newPos` - the position index at which the content to be inserted, 0-based integer
  Throws:
    `SemanticException` - if the element is not allowed to insert

### paste

    public java.util.List paste(DesignElementHandle content)
                         throws SemanticException

  Pastes a report item to this property. The item must be newly created and not yet added to the design.

  Parameters:
    `content` - the newly created element handle
  Returns:
    a list containing all errors for the pasted element
  Throws:
    `SemanticException` - if the element is not allowed to paste

### paste

    public java.util.List paste(IDesignElement content)
                         throws SemanticException

  Pastes a report item to this property. The item must be newly created and not yet added to the design.

  Parameters:
    `content` - the newly created element
  Returns:
    a list containing all errors for the pasted element
  Throws:
    `SemanticException` - if the element is not allowed to paste

### paste

    public java.util.List paste(DesignElementHandle content,
                                int newPos)
                         throws SemanticException

  Pastes a report item to the slot. The item must be newly created and not yet added to the design.

  Parameters:
    `content` - the newly created element handle
    `newPos` - the position index at which the content to be inserted.
  Returns:
    a list containing all errors for the pasted element
  Throws:
    `SemanticException` - if the element is not allowed in the slot

### paste

    public java.util.List paste(IDesignElement content,
                                int newPos)
                         throws SemanticException

  Pastes a report item to the property. The item must be newly created and not yet added to the design.

  Parameters:
    `content` - the newly created element
    `newPos` - the position index at which the content to be inserted.
  Returns:
    a list containing all errors for the pasted element
  Throws:
    `SemanticException` - if the element is not allowed in the property

### getListValue

    public java.util.ArrayList getListValue()

  Description copied from class: `SimpleValueHandle`
  Gets the value as a list.

  Overrides:
    `getListValue` in class `SimpleValueHandle`
  Returns:
    The value as a list. Returns null if the value cannot be converted to a list.

### getContents

    public java.util.List getContents()

  Returns the a list with contents.Items are handles to the contents and in order by position.

  Returns:
    a list with property contents, items of the list are handles to the contents.

### getContentCount

    public int getContentCount()

  Returns the number of elements in the property.

  Returns:
    the count of contents in the property

### shift

    public void shift(DesignElementHandle content,
                      int toPosn)
               throws ContentException

  Moves the position of a content element within the slot.

  Parameters:
    `content` - handle to the content to move
    `toPosn` - the new position
  Throws:
    `ContentException` - if the content is not in the slot, or if the to position is not valid.

### move

    public void move(DesignElementHandle content,
                     DesignElementHandle newContainer,
                     java.lang.String propName)
              throws ContentException

  Moves a content element into a slot in another container element.

  Parameters:
    `content` - a handle to the element to move
    `newContainer` - a handle to the new container element
    `propName` - the target property name where the element will be moved to.
  Throws:
    `ContentException` - if the content is not in this slot or if the new container is not, in fact, a container, or if the content cannot go into the target slot.

### move

    public void move(DesignElementHandle content,
                     DesignElementHandle newContainer,
                     java.lang.String propName,
                     int newPos)
              throws ContentException

  Moves a content element into a slot in another container element at the specified position.

  Parameters:
    `content` - a handle to the element to move
    `newContainer` - a handle to the new container element
    `propName` - the target property name where the element will be moved to.
    `newPos` - the position to which the content will be moved. If it is greater than the current size of the target slot, the content will be appended at the end of the target slot.
  Throws:
    `ContentException` - if the content is not in this slot or if the new container is not, in fact, a container, or if the content cannot go into the target slot.

### dropAndClear

    public void dropAndClear(DesignElementHandle content)
                      throws SemanticException

  Drops a content element from the slot, and clear any reference property which refers the element to drop.

  Parameters:
    `content` - a handle to the content to drop
  Throws:
    `SemanticException` - if the content is not within the slot

### drop

    public void drop(DesignElementHandle content)
              throws SemanticException

  Drops a content element from the slot, and unresolve any reference property which refers the element to drop.

  Parameters:
    `content` - a handle to the content to drop
  Throws:
    `SemanticException` - if the content is not within the slot

### dropAndClear

    public void dropAndClear(int posn)
                      throws SemanticException

  Drops a content element at the given position from the slot, and clear any reference property which refers the element to drop.

  Parameters:
    `posn` - the position of the content to drop
  Throws:
    `SemanticException` - if the position is out of range

### drop

    public void drop(int posn)
              throws SemanticException

  Drops a content element at the given position from the slot, and unresolve any reference property which refers the element to drop.

  Parameters:
    `posn` - the position of the content to drop
  Throws:
    `SemanticException` - if the position is out of range

### canContain

    public boolean canContain(java.lang.String type)

  Determines if the slot can contain an element with the type of `type`.

  Parameters:
    `type` - the name of the element type, like "Table", "List", etc.
  Returns:
    `true` if the slot can contain the an element with `type` type, otherwise `false`.

### canContain

    public boolean canContain(DesignElementHandle content)

  Determines if the given slot can contain the `content`.

  Parameters:
    `content` - the design element handle to check
  Returns:
    `true` if the slot with the given `slotId` can contain the `content`, otherwise `false`.

### getContent

    public DesignElementHandle getContent(int posn)

  Gets the content at the given position.

  Parameters:
    `posn` - the index where the content resides
  Returns:
    the corresponding element

### setEncryption

    public void setEncryption(java.lang.String encryptionID)
                       throws SemanticException

  Parameters:
    `encryptionID` -
  Throws:
    `SemanticException`

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